diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 481c28e..5ee6b15 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1563,6 +1563,13 @@
     RunDumpsys("DROPBOX SYSTEM SERVER CRASHES", {"dropbox", "-p", "system_server_crash"});
     RunDumpsys("DROPBOX SYSTEM APP CRASHES", {"dropbox", "-p", "system_app_crash"});
 
+
+    printf("========================================================\n");
+    printf("== ANR Traces\n");
+    printf("========================================================\n");
+
+    AddAnrTraceFiles();
+
     printf("========================================================\n");
     printf("== Final progress (pid %d): %d/%d (estimated %d)\n", ds.pid_, ds.progress_->Get(),
            ds.progress_->GetMax(), ds.progress_->GetInitialMax());
diff --git a/cmds/evemu-record/README.md b/cmds/evemu-record/README.md
new file mode 100644
index 0000000..5d16d51
--- /dev/null
+++ b/cmds/evemu-record/README.md
@@ -0,0 +1,48 @@
+# `evemu-record`
+
+This is a Rust implementation of the `evemu-record` command from the [FreeDesktop project's evemu
+suite][FreeDesktop]. It records the descriptor and events produced by a single input device in a
+[simple text-based format][format] that can be replayed using the [`uinput` command on
+Android][uinput] or the FreeDesktop evemu tools on other Linux-based platforms. It is included by
+default with `userdebug` and `eng` builds of Android.
+
+The command-line interface is the same as that of the FreeDesktop version, except for
+Android-specific features. For usage instructions, run `evemu-record --help`.
+
+## Usage example
+
+From a computer connected to the device over ADB, you can start a recording:
+
+```
+$ adb shell evemu-record > my-recording.evemu
+Available devices:
+/dev/input/event0:      gpio_keys
+/dev/input/event1:      s2mpg12-power-keys
+/dev/input/event2:      NVTCapacitiveTouchScreen
+/dev/input/event3:      NVTCapacitivePen
+/dev/input/event4:      uinput-folio
+/dev/input/event5:      ACME Touchpad
+Select the device event number [0-5]: 5
+```
+
+...then use the input device for a while, and press Ctrl+C to finish. You will now have a
+`my-recording.evemu` file that you can examine in a text editor. To replay it, use the [`uinput`
+command][uinput]:
+
+```
+$ adb shell uinput - < my-recording.evemu
+```
+
+## Android-specific features
+
+### Timestamp bases
+
+By default, event timestamps are recorded relative to the time of the first event received during
+the recording. Passing `--timestamp-base=boot` causes the timestamps to be recorded relative to the
+system boot time instead. While this does not affect the playback of the recording, it can be useful
+for matching recorded events with other logs that use such timestamps, such as `dmesg` or the
+touchpad gesture debug logs emitted by `TouchpadInputMapper`.
+
+[FreeDesktop]: https://gitlab.freedesktop.org/libevdev/evemu
+[format]: https://gitlab.freedesktop.org/libevdev/evemu#device-description-format
+[uinput]: https://cs.android.com/android/platform/superproject/main/+/main:frameworks/base/cmds/uinput/README.md
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 7478f29..4486bd6 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -4017,24 +4017,37 @@
         return exception(binder::Status::EX_ILLEGAL_ARGUMENT, "Received a null auth token");
     }
 
-    // Authenticate to check the targeting file is the same inode as the authFd.
+    // Authenticate to check the targeting file is the same inode as the authFd. With O_PATH, we
+    // prevent a malicious client from blocking installd by providing a path to FIFO. After the
+    // authentication, the actual open is safe.
     sp<IBinder> authTokenBinder = IInterface::asBinder(authToken)->localBinder();
     if (authTokenBinder == nullptr) {
         return exception(binder::Status::EX_SECURITY, "Received a non-local auth token");
     }
-    auto authTokenInstance = sp<FsveritySetupAuthToken>::cast(authTokenBinder);
-    unique_fd rfd(open(filePath.c_str(), O_RDONLY | O_CLOEXEC | O_NOFOLLOW));
-    struct stat stFromPath;
-    if (fstat(rfd.get(), &stFromPath) < 0) {
-        *_aidl_return = errno;
+    unique_fd pathFd(open(filePath.c_str(), O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_PATH));
+    // Returns a constant errno to avoid one app probing file existence of the others, before the
+    // authentication is done.
+    const int kFixedErrno = EPERM;
+    if (pathFd.get() < 0) {
+        PLOG(DEBUG) << "Failed to open the path";
+        *_aidl_return = kFixedErrno;
         return ok();
     }
+    std::string procFdPath(StringPrintf("/proc/self/fd/%d", pathFd.get()));
+    struct stat stFromPath;
+    if (stat(procFdPath.c_str(), &stFromPath) < 0) {
+        PLOG(DEBUG) << "Failed to stat proc fd " << pathFd.get() << " -> " << filePath;
+        *_aidl_return = kFixedErrno;
+        return ok();
+    }
+    auto authTokenInstance = sp<FsveritySetupAuthToken>::cast(authTokenBinder);
     if (!authTokenInstance->isSameStat(stFromPath)) {
         LOG(DEBUG) << "FD authentication failed";
-        *_aidl_return = EPERM;
+        *_aidl_return = kFixedErrno;
         return ok();
     }
 
+    unique_fd rfd(open(procFdPath.c_str(), O_RDONLY | O_CLOEXEC));
     fsverity_enable_arg arg = {};
     arg.version = 1;
     arg.hash_algorithm = FS_VERITY_HASH_ALG_SHA256;
diff --git a/cmds/installd/tests/installd_service_test.cpp b/cmds/installd/tests/installd_service_test.cpp
index f2b578a..023491f 100644
--- a/cmds/installd/tests/installd_service_test.cpp
+++ b/cmds/installd/tests/installd_service_test.cpp
@@ -194,6 +194,12 @@
     });
 }
 
+static void unlink_path(const std::string& path) {
+    if (unlink(path.c_str()) < 0) {
+        PLOG(DEBUG) << "Failed to unlink " + path;
+    }
+}
+
 class ServiceTest : public testing::Test {
 protected:
     InstalldNativeService* service;
@@ -555,7 +561,7 @@
 TEST_F(FsverityTest, enableFsverity) {
     const std::string path = kTestPath + "/foo";
     create_with_content(path, kTestAppUid, kTestAppUid, 0600, "content");
-    UniqueFile raii(/*fd=*/-1, path, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
 
     // Expect to fs-verity setup to succeed
     sp<IFsveritySetupAuthToken> authToken;
@@ -573,7 +579,7 @@
 TEST_F(FsverityTest, enableFsverity_nullAuthToken) {
     const std::string path = kTestPath + "/foo";
     create_with_content(path, kTestAppUid, kTestAppUid, 0600, "content");
-    UniqueFile raii(/*fd=*/-1, path, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
 
     // Verity null auth token fails
     sp<IFsveritySetupAuthToken> authToken;
@@ -586,7 +592,7 @@
 TEST_F(FsverityTest, enableFsverity_differentFile) {
     const std::string path = kTestPath + "/foo";
     create_with_content(path, kTestAppUid, kTestAppUid, 0600, "content");
-    UniqueFile raii(/*fd=*/-1, path, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
 
     // Expect to fs-verity setup to succeed
     sp<IFsveritySetupAuthToken> authToken;
@@ -597,17 +603,36 @@
     // Verity auth token does not work for a different file
     const std::string anotherPath = kTestPath + "/bar";
     ASSERT_TRUE(android::base::WriteStringToFile("content", anotherPath));
-    UniqueFile raii2(/*fd=*/-1, anotherPath, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii2(/*fd=*/-1, anotherPath, &unlink_path);
     int32_t errno_local;
     status = service->enableFsverity(authToken, anotherPath, "fake.package.name", &errno_local);
     EXPECT_TRUE(status.isOk());
     EXPECT_NE(errno_local, 0);
 }
 
+TEST_F(FsverityTest, enableFsverity_errnoBeforeAuthenticated) {
+    const std::string path = kTestPath + "/foo";
+    create_with_content(path, kTestAppUid, kTestAppUid, 0600, "content");
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
+
+    // Expect to fs-verity setup to succeed
+    sp<IFsveritySetupAuthToken> authToken;
+    binder::Status status = createFsveritySetupAuthToken(path, O_RDWR, &authToken);
+    EXPECT_TRUE(status.isOk());
+    EXPECT_TRUE(authToken != nullptr);
+
+    // Verity errno before the fd authentication is constant (EPERM)
+    int32_t errno_local;
+    status = service->enableFsverity(authToken, path + "-non-exist", "fake.package.name",
+                                     &errno_local);
+    EXPECT_TRUE(status.isOk());
+    EXPECT_EQ(errno_local, EPERM);
+}
+
 TEST_F(FsverityTest, createFsveritySetupAuthToken_ReadonlyFdDoesNotAuthenticate) {
     const std::string path = kTestPath + "/foo";
     create_with_content(path, kTestAppUid, kTestAppUid, 0600, "content");
-    UniqueFile raii(/*fd=*/-1, path, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
 
     // Expect the fs-verity setup to fail
     sp<IFsveritySetupAuthToken> authToken;
@@ -619,7 +644,7 @@
     const std::string path = kTestPath + "/foo";
     // Simulate world-writable file owned by another app
     create_with_content(path, kTestAppUid + 1, kTestAppUid + 1, 0666, "content");
-    UniqueFile raii(/*fd=*/-1, path, [](const std::string& path) { unlink(path.c_str()); });
+    UniqueFile raii(/*fd=*/-1, path, &unlink_path);
 
     // Expect the fs-verity setup to fail
     sp<IFsveritySetupAuthToken> authToken;
diff --git a/cmds/lshal/Lshal.cpp b/cmds/lshal/Lshal.cpp
index 6115da7..5cdcb23 100644
--- a/cmds/lshal/Lshal.cpp
+++ b/cmds/lshal/Lshal.cpp
@@ -232,6 +232,11 @@
         return static_cast<HelpCommand*>(help)->usageOfCommand(mCommand);
     }
 
+    // After Lshal::main() finishes, caller may call _exit(), causing debug
+    // information to prematurely ends. Hence flush().
+    err().flush();
+    out().flush();
+
     return status;
 }
 
diff --git a/cmds/lshal/NullableOStream.h b/cmds/lshal/NullableOStream.h
index 7cffcf8..1576486 100644
--- a/cmds/lshal/NullableOStream.h
+++ b/cmds/lshal/NullableOStream.h
@@ -59,6 +59,11 @@
     operator bool() const { // NOLINT(google-explicit-constructor)
         return mOs != nullptr;
     }
+    void flush() {
+        if (mOs) {
+            mOs->flush();
+        }
+    }
 private:
     template<typename>
     friend class NullableOStream;
diff --git a/cmds/servicemanager/Android.bp b/cmds/servicemanager/Android.bp
index e00c2a2..3897197 100644
--- a/cmds/servicemanager/Android.bp
+++ b/cmds/servicemanager/Android.bp
@@ -95,6 +95,16 @@
     static_libs: ["libgmock"],
 }
 
+cc_test_host {
+    name: "servicemanager_unittest",
+    test_suites: ["general-tests"],
+    defaults: ["servicemanager_defaults"],
+    srcs: [
+        "ServiceManagerUnittest.cpp",
+    ],
+    static_libs: ["libgmock"],
+}
+
 cc_fuzz {
     name: "servicemanager_fuzzer",
     defaults: [
diff --git a/cmds/servicemanager/NameUtil.h b/cmds/servicemanager/NameUtil.h
new file mode 100644
index 0000000..b080939
--- /dev/null
+++ b/cmds/servicemanager/NameUtil.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <string>
+#include <string_view>
+
+#include <android-base/strings.h>
+
+namespace android {
+
+#ifndef VENDORSERVICEMANAGER
+
+struct NativeName {
+    std::string package;
+    std::string instance;
+
+    // Parse {package}/{instance}
+    static bool fill(std::string_view name, NativeName* nname) {
+        size_t slash = name.find('/');
+        if (slash == std::string_view::npos) {
+            return false;
+        }
+        // no extra slashes
+        if (name.find('/', slash + 1) != std::string_view::npos) {
+            return false;
+        }
+        // every part should be non-empty
+        if (slash == 0 || slash + 1 == name.size()) {
+            return false;
+        }
+        // no dots in package
+        if (name.rfind('.', slash) != std::string_view::npos) {
+            return false;
+        }
+        nname->package = name.substr(0, slash);
+        nname->instance = name.substr(slash + 1);
+        return true;
+    }
+};
+
+#endif
+
+} // namespace android
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index a401838..a828b52 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -35,6 +35,8 @@
 #include <vintf/constants.h>
 #endif  // !VENDORSERVICEMANAGER
 
+#include "NameUtil.h"
+
 using ::android::binder::Status;
 using ::android::internal::Stability;
 
@@ -84,6 +86,10 @@
     return false;
 }
 
+static std::string getNativeInstanceName(const vintf::ManifestInstance& instance) {
+    return instance.package() + "/" + instance.instance();
+}
+
 struct AidlName {
     std::string package;
     std::string iface;
@@ -105,7 +111,26 @@
     }
 };
 
+static std::string getAidlInstanceName(const vintf::ManifestInstance& instance) {
+    return instance.package() + "." + instance.interface() + "/" + instance.instance();
+}
+
 static bool isVintfDeclared(const std::string& name) {
+    NativeName nname;
+    if (NativeName::fill(name, &nname)) {
+        bool found = forEachManifest([&](const ManifestWithDescription& mwd) {
+            if (mwd.manifest->hasNativeInstance(nname.package, nname.instance)) {
+                ALOGI("Found %s in %s VINTF manifest.", name.c_str(), mwd.description);
+                return true; // break
+            }
+            return false; // continue
+        });
+        if (!found) {
+            ALOGI("Could not find %s in the VINTF manifest.", name.c_str());
+        }
+        return found;
+    }
+
     AidlName aname;
     if (!AidlName::fill(name, &aname)) return false;
 
@@ -144,13 +169,31 @@
 }
 
 static std::optional<std::string> getVintfUpdatableApex(const std::string& name) {
+    NativeName nname;
+    if (NativeName::fill(name, &nname)) {
+        std::optional<std::string> updatableViaApex;
+
+        forEachManifest([&](const ManifestWithDescription& mwd) {
+            bool cont = mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
+                if (manifestInstance.format() != vintf::HalFormat::NATIVE) return true;
+                if (manifestInstance.package() != nname.package) return true;
+                if (manifestInstance.instance() != nname.instance) return true;
+                updatableViaApex = manifestInstance.updatableViaApex();
+                return false; // break (libvintf uses opposite convention)
+            });
+            return !cont;
+        });
+
+        return updatableViaApex;
+    }
+
     AidlName aname;
     if (!AidlName::fill(name, &aname)) return std::nullopt;
 
     std::optional<std::string> updatableViaApex;
 
     forEachManifest([&](const ManifestWithDescription& mwd) {
-        mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
+        bool cont = mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
             if (manifestInstance.format() != vintf::HalFormat::AIDL) return true;
             if (manifestInstance.package() != aname.package) return true;
             if (manifestInstance.interface() != aname.iface) return true;
@@ -158,31 +201,31 @@
             updatableViaApex = manifestInstance.updatableViaApex();
             return false; // break (libvintf uses opposite convention)
         });
-        if (updatableViaApex.has_value()) return true; // break (found match)
-        return false; // continue
+        return !cont;
     });
 
     return updatableViaApex;
 }
 
-static std::vector<std::string> getVintfUpdatableInstances(const std::string& apexName) {
-    std::vector<std::string> instances;
+static std::vector<std::string> getVintfUpdatableNames(const std::string& apexName) {
+    std::vector<std::string> names;
 
     forEachManifest([&](const ManifestWithDescription& mwd) {
         mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
-            if (manifestInstance.format() == vintf::HalFormat::AIDL &&
-                manifestInstance.updatableViaApex().has_value() &&
+            if (manifestInstance.updatableViaApex().has_value() &&
                 manifestInstance.updatableViaApex().value() == apexName) {
-                std::string aname = manifestInstance.package() + "." +
-                        manifestInstance.interface() + "/" + manifestInstance.instance();
-                instances.push_back(aname);
+                if (manifestInstance.format() == vintf::HalFormat::NATIVE) {
+                    names.push_back(getNativeInstanceName(manifestInstance));
+                } else if (manifestInstance.format() == vintf::HalFormat::AIDL) {
+                    names.push_back(getAidlInstanceName(manifestInstance));
+                }
             }
             return true; // continue (libvintf uses opposite convention)
         });
         return false; // continue
     });
 
-    return instances;
+    return names;
 }
 
 static std::optional<ConnectionInfo> getVintfConnectionInfo(const std::string& name) {
@@ -217,6 +260,18 @@
 static std::vector<std::string> getVintfInstances(const std::string& interface) {
     size_t lastDot = interface.rfind('.');
     if (lastDot == std::string::npos) {
+        // This might be a package for native instance.
+        std::vector<std::string> ret;
+        (void)forEachManifest([&](const ManifestWithDescription& mwd) {
+            auto instances = mwd.manifest->getNativeInstances(interface);
+            ret.insert(ret.end(), instances.begin(), instances.end());
+            return false; // continue
+        });
+        // If found, return it without error log.
+        if (!ret.empty()) {
+            return ret;
+        }
+
         ALOGE("VINTF interfaces require names in Java package format (e.g. some.package.foo.IFoo) "
               "but got: %s",
               interface.c_str());
@@ -596,20 +651,20 @@
                                          std::vector<std::string>* outReturn) {
     auto ctx = mAccess->getCallingContext();
 
-    std::vector<std::string> apexUpdatableInstances;
+    std::vector<std::string> apexUpdatableNames;
 #ifndef VENDORSERVICEMANAGER
-    apexUpdatableInstances = getVintfUpdatableInstances(apexName);
+    apexUpdatableNames = getVintfUpdatableNames(apexName);
 #endif
 
     outReturn->clear();
 
-    for (const std::string& instance : apexUpdatableInstances) {
-        if (mAccess->canFind(ctx, instance)) {
-            outReturn->push_back(instance);
+    for (const std::string& name : apexUpdatableNames) {
+        if (mAccess->canFind(ctx, name)) {
+            outReturn->push_back(name);
         }
     }
 
-    if (outReturn->size() == 0 && apexUpdatableInstances.size() != 0) {
+    if (outReturn->size() == 0 && apexUpdatableNames.size() != 0) {
         return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
     }
 
diff --git a/cmds/servicemanager/ServiceManagerUnittest.cpp b/cmds/servicemanager/ServiceManagerUnittest.cpp
new file mode 100644
index 0000000..39d20b0
--- /dev/null
+++ b/cmds/servicemanager/ServiceManagerUnittest.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include "NameUtil.h"
+
+namespace android {
+
+TEST(ServiceManager, NativeName) {
+    NativeName nname;
+    EXPECT_TRUE(NativeName::fill("mapper/default", &nname));
+    EXPECT_EQ("mapper", nname.package);
+    EXPECT_EQ("default", nname.instance);
+}
+
+TEST(ServiceManager, NativeName_Malformed) {
+    NativeName nname;
+    EXPECT_FALSE(NativeName::fill("mapper", &nname));
+    EXPECT_FALSE(NativeName::fill("mapper/", &nname));
+    EXPECT_FALSE(NativeName::fill("/default", &nname));
+    EXPECT_FALSE(NativeName::fill("mapper/default/0", &nname));
+    EXPECT_FALSE(NativeName::fill("aidl.like.IType/default", &nname));
+}
+
+} // namespace android
diff --git a/cmds/servicemanager/test_sm.cpp b/cmds/servicemanager/test_sm.cpp
index 97e500d..b575053 100644
--- a/cmds/servicemanager/test_sm.cpp
+++ b/cmds/servicemanager/test_sm.cpp
@@ -361,6 +361,24 @@
     EXPECT_EQ(std::vector<std::string>{}, names);
 }
 
+TEST(Vintf, IsDeclared_native) {
+    if (!isCuttlefishPhone()) GTEST_SKIP() << "Skipping non-Cuttlefish-phone devices";
+
+    auto sm = getPermissiveServiceManager();
+    bool declared = false;
+    EXPECT_TRUE(sm->isDeclared("mapper/minigbm", &declared).isOk());
+    EXPECT_TRUE(declared);
+}
+
+TEST(Vintf, GetDeclaredInstances_native) {
+    if (!isCuttlefishPhone()) GTEST_SKIP() << "Skipping non-Cuttlefish-phone devices";
+
+    auto sm = getPermissiveServiceManager();
+    std::vector<std::string> instances;
+    EXPECT_TRUE(sm->getDeclaredInstances("mapper", &instances).isOk());
+    EXPECT_EQ(std::vector<std::string>{"minigbm"}, instances);
+}
+
 class CallbackHistorian : public BnServiceCallback {
     Status onRegistration(const std::string& name, const sp<IBinder>& binder) override {
         registrations.push_back(name);
diff --git a/data/etc/android.hardware.location.gps.xml b/data/etc/android.hardware.location.gps.xml
index 72ab732..2a55370 100644
--- a/data/etc/android.hardware.location.gps.xml
+++ b/data/etc/android.hardware.location.gps.xml
@@ -17,6 +17,5 @@
 <!-- These are the location-related features for devices that include GPS. -->
 <permissions>
     <feature name="android.hardware.location" />
-    <feature name="android.hardware.location.network" />
     <feature name="android.hardware.location.gps" />
 </permissions>
diff --git a/data/etc/car_core_hardware.xml b/data/etc/car_core_hardware.xml
index 95b8110..beb69f8 100644
--- a/data/etc/car_core_hardware.xml
+++ b/data/etc/car_core_hardware.xml
@@ -28,7 +28,6 @@
 
     <feature name="android.hardware.audio.output" />
     <feature name="android.hardware.location" />
-    <feature name="android.hardware.location.network" />
     <feature name="android.hardware.bluetooth" />
     <feature name="android.hardware.touchscreen" />
     <feature name="android.hardware.microphone" />
diff --git a/data/etc/wearable_core_hardware.xml b/data/etc/wearable_core_hardware.xml
index 855b110..4c9932d 100644
--- a/data/etc/wearable_core_hardware.xml
+++ b/data/etc/wearable_core_hardware.xml
@@ -36,6 +36,7 @@
     <feature name="android.hardware.security.model.compatible" />
 
     <!-- basic system services -->
+    <feature name="android.software.credentials" />
     <feature name="android.software.home_screen" />
     <feature name="android.software.secure_lock_screen" />
 
diff --git a/include/android/keycodes.h b/include/android/keycodes.h
index f8fb256..79cdbca 100644
--- a/include/android/keycodes.h
+++ b/include/android/keycodes.h
@@ -839,6 +839,10 @@
     AKEYCODE_MACRO_3 = 315,
     /** User customizable key #4. */
     AKEYCODE_MACRO_4 = 316,
+    /** Open Emoji picker */
+    AKEYCODE_EMOJI_PICKER = 317,
+    /** Take Screenshot */
+    AKEYCODE_SCREENSHOT = 318,
 
     // NOTE: If you add a new keycode here you must also add it to several other files.
     //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
diff --git a/include/android/performance_hint.h b/include/android/performance_hint.h
index 08d339b..3c82d88 100644
--- a/include/android/performance_hint.h
+++ b/include/android/performance_hint.h
@@ -233,11 +233,11 @@
  * @param workDuration The {@link AWorkDuration} structure of times the thread group took to
  *     complete its last task in nanoseconds breaking down into different components.
  *
- *     The work period start timestamp, actual total duration and actual CPU duration must be
- *     positive.
+ *     The work period start timestamp and actual total duration must be greater than zero.
  *
- *     The actual GPU duration must be non-negative. If the actual GPU duration is 0, it means
- *     the actual GPU duration is not measured.
+ *     The actual CPU and GPU durations must be greater than or equal to zero, and at least one
+ *     of them must be greater than zero. When one of them is equal to zero, it means that type
+ *     of work was not measured for this workload.
  *
  * @return 0 on success.
  *         EINVAL if any duration is an invalid number.
@@ -289,7 +289,8 @@
  *
  * @param aWorkDuration The {@link AWorkDuration} created by calling {@link AWorkDuration_create()}
  * @param actualCpuDurationNanos The actual CPU work duration in nanoseconds. This number must be
- *        greater than zero.
+ *        greater than or equal to zero. If it is equal to zero, that means the CPU was not
+ *        measured.
  */
 void AWorkDuration_setActualCpuDurationNanos(AWorkDuration* _Nonnull aWorkDuration,
         int64_t actualCpuDurationNanos) __INTRODUCED_IN(__ANDROID_API_V__);
@@ -299,7 +300,7 @@
  *
  * @param aWorkDuration The {@link AWorkDuration} created by calling {@link AWorkDuration_create()}.
  * @param actualGpuDurationNanos The actual GPU work duration in nanoseconds, the number must be
- *        non-negative. If the actual GPU duration is 0, it means the actual GPU duration is
+ *        greater than or equal to zero. If it is equal to zero, that means the GPU was not
  *        measured.
  */
 void AWorkDuration_setActualGpuDurationNanos(AWorkDuration* _Nonnull aWorkDuration,
diff --git a/include/ftl/expected.h b/include/ftl/expected.h
new file mode 100644
index 0000000..12b6102
--- /dev/null
+++ b/include/ftl/expected.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <android-base/expected.h>
+#include <ftl/optional.h>
+
+#include <utility>
+
+namespace android::ftl {
+
+// Superset of base::expected<T, E> with monadic operations.
+//
+// TODO: Extend std::expected<T, E> in C++23.
+//
+template <typename T, typename E>
+struct Expected final : base::expected<T, E> {
+  using Base = base::expected<T, E>;
+  using Base::expected;
+
+  using Base::error;
+  using Base::has_value;
+  using Base::value;
+
+  template <typename P>
+  constexpr bool has_error(P predicate) const {
+    return !has_value() && predicate(error());
+  }
+
+  constexpr Optional<T> value_opt() const& {
+    return has_value() ? Optional(value()) : std::nullopt;
+  }
+
+  constexpr Optional<T> value_opt() && {
+    return has_value() ? Optional(std::move(value())) : std::nullopt;
+  }
+
+  // Delete new for this class. Its base doesn't have a virtual destructor, and
+  // if it got deleted via base class pointer, it would cause undefined
+  // behavior. There's not a good reason to allocate this object on the heap
+  // anyway.
+  static void* operator new(size_t) = delete;
+  static void* operator new[](size_t) = delete;
+};
+
+template <typename E>
+constexpr auto Unexpected(E&& error) {
+  return base::unexpected(std::forward<E>(error));
+}
+
+}  // namespace android::ftl
diff --git a/include/ftl/fake_guard.h b/include/ftl/fake_guard.h
index bacd1b2..e601251 100644
--- a/include/ftl/fake_guard.h
+++ b/include/ftl/fake_guard.h
@@ -85,6 +85,5 @@
 
 #define FTL_MAKE_FAKE_GUARD(arg1, arg2, guard, ...) guard
 
-// The void argument suppresses a warning about zero variadic macro arguments.
 #define FTL_FAKE_GUARD(...) \
-  FTL_MAKE_FAKE_GUARD(__VA_ARGS__, FTL_FAKE_GUARD2, FTL_FAKE_GUARD1, void)(__VA_ARGS__)
+  FTL_MAKE_FAKE_GUARD(__VA_ARGS__, FTL_FAKE_GUARD2, FTL_FAKE_GUARD1, )(__VA_ARGS__)
diff --git a/include/ftl/small_map.h b/include/ftl/small_map.h
index 49cde7f..83d5967 100644
--- a/include/ftl/small_map.h
+++ b/include/ftl/small_map.h
@@ -107,12 +107,20 @@
   template <typename Q, typename W, std::size_t M, typename E>
   SmallMap(SmallMap<Q, W, M, E> other) : map_(std::move(other.map_)) {}
 
+  static constexpr size_type static_capacity() { return N; }
+
   size_type max_size() const { return map_.max_size(); }
   size_type size() const { return map_.size(); }
   bool empty() const { return map_.empty(); }
 
   // Returns whether the map is backed by static or dynamic storage.
-  bool dynamic() const { return map_.dynamic(); }
+  bool dynamic() const {
+    if constexpr (static_capacity() > 0) {
+      return map_.dynamic();
+    } else {
+      return true;
+    }
+  }
 
   iterator begin() { return map_.begin(); }
   const_iterator begin() const { return cbegin(); }
@@ -171,9 +179,15 @@
       return {it, false};
     }
 
-    auto& ref = map_.emplace_back(std::piecewise_construct, std::forward_as_tuple(key),
-                                  std::forward_as_tuple(std::forward<Args>(args)...));
-    return {&ref, true};
+    decltype(auto) ref_or_it =
+        map_.emplace_back(std::piecewise_construct, std::forward_as_tuple(key),
+                          std::forward_as_tuple(std::forward<Args>(args)...));
+
+    if constexpr (static_capacity() > 0) {
+      return {&ref_or_it, true};
+    } else {
+      return {ref_or_it, true};
+    }
   }
 
   // Replaces a mapping if it exists, and returns an iterator to it. Returns the end() iterator
diff --git a/include/ftl/small_vector.h b/include/ftl/small_vector.h
index 11294c3..43e9fac 100644
--- a/include/ftl/small_vector.h
+++ b/include/ftl/small_vector.h
@@ -124,30 +124,29 @@
   DISPATCH(size_type, size, const)
   DISPATCH(bool, empty, const)
 
-  // noexcept to suppress warning about zero variadic macro arguments.
-  DISPATCH(iterator, begin, noexcept)
+  DISPATCH(iterator, begin, )
   DISPATCH(const_iterator, begin, const)
   DISPATCH(const_iterator, cbegin, const)
 
-  DISPATCH(iterator, end, noexcept)
+  DISPATCH(iterator, end, )
   DISPATCH(const_iterator, end, const)
   DISPATCH(const_iterator, cend, const)
 
-  DISPATCH(reverse_iterator, rbegin, noexcept)
+  DISPATCH(reverse_iterator, rbegin, )
   DISPATCH(const_reverse_iterator, rbegin, const)
   DISPATCH(const_reverse_iterator, crbegin, const)
 
-  DISPATCH(reverse_iterator, rend, noexcept)
+  DISPATCH(reverse_iterator, rend, )
   DISPATCH(const_reverse_iterator, rend, const)
   DISPATCH(const_reverse_iterator, crend, const)
 
-  DISPATCH(iterator, last, noexcept)
+  DISPATCH(iterator, last, )
   DISPATCH(const_iterator, last, const)
 
-  DISPATCH(reference, front, noexcept)
+  DISPATCH(reference, front, )
   DISPATCH(const_reference, front, const)
 
-  DISPATCH(reference, back, noexcept)
+  DISPATCH(reference, back, )
   DISPATCH(const_reference, back, const)
 
   reference operator[](size_type i) {
@@ -211,13 +210,13 @@
   //
   // The last() and end() iterators are invalidated.
   //
-  DISPATCH(void, pop_back, noexcept)
+  DISPATCH(void, pop_back, )
 
   // Removes all elements.
   //
   // All iterators are invalidated.
   //
-  DISPATCH(void, clear, noexcept)
+  DISPATCH(void, clear, )
 
 #undef DISPATCH
 
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index b7751f7..57b659d 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -75,6 +75,17 @@
     bool operator!=(const InputDeviceIdentifier&) const = default;
 };
 
+/**
+ * Holds View related behaviors for an InputDevice.
+ */
+struct InputDeviceViewBehavior {
+    /**
+     * The smooth scroll behavior that applies for all source/axis, if defined by the device.
+     * Empty optional if the device has not specified the default smooth scroll behavior.
+     */
+    std::optional<bool> shouldSmoothScroll;
+};
+
 /* Types of input device sensors. Keep sync with core/java/android/hardware/Sensor.java */
 enum class InputDeviceSensorType : int32_t {
     ACCELEROMETER = ASENSOR_TYPE_ACCELEROMETER,
@@ -266,7 +277,8 @@
 
     void initialize(int32_t id, int32_t generation, int32_t controllerNumber,
                     const InputDeviceIdentifier& identifier, const std::string& alias,
-                    bool isExternal, bool hasMic, int32_t associatedDisplayId);
+                    bool isExternal, bool hasMic, int32_t associatedDisplayId,
+                    InputDeviceViewBehavior viewBehavior = {{}});
 
     inline int32_t getId() const { return mId; }
     inline int32_t getControllerNumber() const { return mControllerNumber; }
@@ -298,6 +310,8 @@
         return mKeyboardLayoutInfo;
     }
 
+    inline const InputDeviceViewBehavior& getViewBehavior() const { return mViewBehavior; }
+
     inline void setKeyCharacterMap(const std::shared_ptr<KeyCharacterMap> value) {
         mKeyCharacterMap = value;
     }
@@ -359,6 +373,8 @@
     std::unordered_map<int32_t, InputDeviceLightInfo> mLights;
     /* Map from battery ID to battery info */
     std::unordered_map<int32_t, InputDeviceBatteryInfo> mBatteries;
+    /** The View related behaviors for the device. */
+    InputDeviceViewBehavior mViewBehavior;
 };
 
 /* Types of input device configuration files. */
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 2d64872..42dcd3c 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -35,18 +35,16 @@
 #include <android-base/result.h>
 #include <android-base/unique_fd.h>
 
+#include <android/os/InputChannelCore.h>
 #include <binder/IBinder.h>
-#include <binder/Parcelable.h>
 #include <input/Input.h>
 #include <input/InputVerifier.h>
 #include <sys/stat.h>
 #include <ui/Transform.h>
 #include <utils/BitSet.h>
 #include <utils/Errors.h>
-#include <utils/RefBase.h>
 #include <utils/Timers.h>
 
-
 namespace android {
 class Parcel;
 
@@ -231,18 +229,15 @@
  * input messages across processes.  Each channel has a descriptive name for debugging purposes.
  *
  * Each endpoint has its own InputChannel object that specifies its file descriptor.
+ * For parceling, this relies on android::os::InputChannelCore, defined in aidl.
  *
  * The input channel is closed when all references to it are released.
  */
-class InputChannel : public Parcelable {
+class InputChannel : private android::os::InputChannelCore {
 public:
-    static std::unique_ptr<InputChannel> create(const std::string& name,
-                                                android::base::unique_fd fd, sp<IBinder> token);
-    InputChannel() = default;
-    InputChannel(const InputChannel& other)
-          : mName(other.mName), mFd(other.dupFd()), mToken(other.mToken){};
-    InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token);
-    ~InputChannel() override;
+    static std::unique_ptr<InputChannel> create(android::os::InputChannelCore&& parceledChannel);
+    ~InputChannel();
+
     /**
      * Create a pair of input channels.
      * The two returned input channels are equivalent, and are labeled as "server" and "client"
@@ -254,9 +249,8 @@
                                          std::unique_ptr<InputChannel>& outServerChannel,
                                          std::unique_ptr<InputChannel>& outClientChannel);
 
-    inline std::string getName() const { return mName; }
-    inline const android::base::unique_fd& getFd() const { return mFd; }
-    inline sp<IBinder> getToken() const { return mToken; }
+    inline std::string getName() const { return name; }
+    inline int getFd() const { return fd.get(); }
 
     /* Send a message to the other endpoint.
      *
@@ -304,10 +298,16 @@
     /* Return a new object that has a duplicate of this channel's fd. */
     std::unique_ptr<InputChannel> dup() const;
 
-    void copyTo(InputChannel& outChannel) const;
+    void copyTo(android::os::InputChannelCore& outChannel) const;
 
-    status_t readFromParcel(const android::Parcel* parcel) override;
-    status_t writeToParcel(android::Parcel* parcel) const override;
+    /**
+     * Similar to "copyTo", but it takes ownership of the provided InputChannel (and after this is
+     * called, it destroys it).
+     * @param from the InputChannel that should be converted to InputChannelCore
+     * @param outChannel the pre-allocated InputChannelCore to which to transfer the 'from' channel
+     */
+    static void moveChannel(std::unique_ptr<InputChannel> from,
+                            android::os::InputChannelCore& outChannel);
 
     /**
      * The connection token is used to identify the input connection, i.e.
@@ -323,26 +323,11 @@
      */
     sp<IBinder> getConnectionToken() const;
 
-    bool operator==(const InputChannel& inputChannel) const {
-        struct stat lhs, rhs;
-        if (fstat(mFd.get(), &lhs) != 0) {
-            return false;
-        }
-        if (fstat(inputChannel.getFd().get(), &rhs) != 0) {
-            return false;
-        }
-        // If file descriptors are pointing to same inode they are duplicated fds.
-        return inputChannel.getName() == getName() && inputChannel.getConnectionToken() == mToken &&
-                lhs.st_ino == rhs.st_ino;
-    }
-
 private:
-    base::unique_fd dupFd() const;
+    static std::unique_ptr<InputChannel> create(const std::string& name,
+                                                android::base::unique_fd fd, sp<IBinder> token);
 
-    std::string mName;
-    base::unique_fd mFd;
-
-    sp<IBinder> mToken;
+    InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token);
 };
 
 /*
@@ -357,7 +342,7 @@
     ~InputPublisher();
 
     /* Gets the underlying input channel. */
-    inline std::shared_ptr<InputChannel> getChannel() { return mChannel; }
+    inline InputChannel& getChannel() const { return *mChannel; }
 
     /* Publishes a key event to the input channel.
      *
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 7de94e3..fb2781b 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -492,6 +492,7 @@
     if (read(fd, &on, sizeof(on)) == -1) {
         ALOGE("%s: error reading to %s: %s", __func__,
                  names[static_cast<int>(feature)], strerror(errno));
+        close(fd);
         return false;
     }
     close(fd);
diff --git a/libs/binder/RecordedTransaction.cpp b/libs/binder/RecordedTransaction.cpp
index 525ba2e..de2a69f 100644
--- a/libs/binder/RecordedTransaction.cpp
+++ b/libs/binder/RecordedTransaction.cpp
@@ -114,8 +114,8 @@
 
 RecordedTransaction::RecordedTransaction(RecordedTransaction&& t) noexcept {
     mData = t.mData;
-    mSent.setData(t.getDataParcel().data(), t.getDataParcel().dataSize());
-    mReply.setData(t.getReplyParcel().data(), t.getReplyParcel().dataSize());
+    mSentDataOnly.setData(t.getDataParcel().data(), t.getDataParcel().dataSize());
+    mReplyDataOnly.setData(t.getReplyParcel().data(), t.getReplyParcel().dataSize());
 }
 
 std::optional<RecordedTransaction> RecordedTransaction::fromDetails(
@@ -136,12 +136,21 @@
         return std::nullopt;
     }
 
-    if (t.mSent.setData(dataParcel.data(), dataParcel.dataBufferSize()) != android::NO_ERROR) {
+    if (const auto* kernelFields = dataParcel.maybeKernelFields()) {
+        for (size_t i = 0; i < kernelFields->mObjectsSize; i++) {
+            uint64_t offset = kernelFields->mObjects[i];
+            t.mData.mSentObjectData.push_back(offset);
+        }
+    }
+
+    if (t.mSentDataOnly.setData(dataParcel.data(), dataParcel.dataBufferSize()) !=
+        android::NO_ERROR) {
         ALOGE("Failed to set sent parcel data.");
         return std::nullopt;
     }
 
-    if (t.mReply.setData(replyParcel.data(), replyParcel.dataBufferSize()) != android::NO_ERROR) {
+    if (t.mReplyDataOnly.setData(replyParcel.data(), replyParcel.dataBufferSize()) !=
+        android::NO_ERROR) {
         ALOGE("Failed to set reply parcel data.");
         return std::nullopt;
     }
@@ -154,6 +163,7 @@
     DATA_PARCEL_CHUNK = 2,
     REPLY_PARCEL_CHUNK = 3,
     INTERFACE_NAME_CHUNK = 4,
+    DATA_PARCEL_OBJECT_CHUNK = 5,
     END_CHUNK = 0x00ffffff,
 };
 
@@ -265,21 +275,30 @@
                 break;
             }
             case DATA_PARCEL_CHUNK: {
-                if (t.mSent.setData(reinterpret_cast<const unsigned char*>(payloadMap),
-                                    chunk.dataSize) != android::NO_ERROR) {
+                if (t.mSentDataOnly.setData(reinterpret_cast<const unsigned char*>(payloadMap),
+                                            chunk.dataSize) != android::NO_ERROR) {
                     ALOGE("Failed to set sent parcel data.");
                     return std::nullopt;
                 }
                 break;
             }
             case REPLY_PARCEL_CHUNK: {
-                if (t.mReply.setData(reinterpret_cast<const unsigned char*>(payloadMap),
-                                     chunk.dataSize) != android::NO_ERROR) {
+                if (t.mReplyDataOnly.setData(reinterpret_cast<const unsigned char*>(payloadMap),
+                                             chunk.dataSize) != android::NO_ERROR) {
                     ALOGE("Failed to set reply parcel data.");
                     return std::nullopt;
                 }
                 break;
             }
+            case DATA_PARCEL_OBJECT_CHUNK: {
+                const uint64_t* objects = reinterpret_cast<const uint64_t*>(payloadMap);
+                size_t metaDataSize = (chunk.dataSize / sizeof(uint64_t));
+                ALOGI("Total objects found in saved parcel %zu", metaDataSize);
+                for (size_t index = 0; index < metaDataSize; ++index) {
+                    t.mData.mSentObjectData.push_back(objects[index]);
+                }
+                break;
+            }
             case END_CHUNK:
                 break;
             default:
@@ -343,14 +362,26 @@
         return UNKNOWN_ERROR;
     }
 
-    if (NO_ERROR != writeChunk(fd, DATA_PARCEL_CHUNK, mSent.dataBufferSize(), mSent.data())) {
+    if (NO_ERROR !=
+        writeChunk(fd, DATA_PARCEL_CHUNK, mSentDataOnly.dataBufferSize(), mSentDataOnly.data())) {
         ALOGE("Failed to write sent Parcel to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
-    if (NO_ERROR != writeChunk(fd, REPLY_PARCEL_CHUNK, mReply.dataBufferSize(), mReply.data())) {
+
+    if (NO_ERROR !=
+        writeChunk(fd, REPLY_PARCEL_CHUNK, mReplyDataOnly.dataBufferSize(),
+                   mReplyDataOnly.data())) {
         ALOGE("Failed to write reply Parcel to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
+
+    if (NO_ERROR !=
+        writeChunk(fd, DATA_PARCEL_OBJECT_CHUNK, mData.mSentObjectData.size() * sizeof(uint64_t),
+                   reinterpret_cast<const uint8_t*>(mData.mSentObjectData.data()))) {
+        ALOGE("Failed to write sent parcel object metadata to fd %d", fd.get());
+        return UNKNOWN_ERROR;
+    }
+
     if (NO_ERROR != writeChunk(fd, END_CHUNK, 0, NULL)) {
         ALOGE("Failed to write end chunk to fd %d", fd.get());
         return UNKNOWN_ERROR;
@@ -384,10 +415,14 @@
     return mData.mHeader.version;
 }
 
+const std::vector<uint64_t>& RecordedTransaction::getObjectOffsets() const {
+    return mData.mSentObjectData;
+}
+
 const Parcel& RecordedTransaction::getDataParcel() const {
-    return mSent;
+    return mSentDataOnly;
 }
 
 const Parcel& RecordedTransaction::getReplyParcel() const {
-    return mReply;
+    return mReplyDataOnly;
 }
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index 09da6e3..d7096d8 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -55,6 +55,9 @@
 class TextOutput;
 namespace binder {
 class Status;
+namespace debug {
+class RecordedTransaction;
+}
 }
 
 class Parcel {
@@ -1443,6 +1446,9 @@
     // TODO(b/202029388): Remove 'getBlobAshmemSize' once no prebuilts reference
     // this
     size_t getBlobAshmemSize() const;
+
+    // Needed so that we can save object metadata to the disk
+    friend class android::binder::debug::RecordedTransaction;
 };
 
 // ---------------------------------------------------------------------------
diff --git a/libs/binder/include/binder/RecordedTransaction.h b/libs/binder/include/binder/RecordedTransaction.h
index 505c199..f0bee7f 100644
--- a/libs/binder/include/binder/RecordedTransaction.h
+++ b/libs/binder/include/binder/RecordedTransaction.h
@@ -50,6 +50,7 @@
     uint32_t getVersion() const;
     const Parcel& getDataParcel() const;
     const Parcel& getReplyParcel() const;
+    const std::vector<uint64_t>& getObjectOffsets() const;
 
 private:
     RecordedTransaction() = default;
@@ -75,10 +76,11 @@
     struct MovableData { // movable
         TransactionHeader mHeader;
         std::string mInterfaceName;
+        std::vector<uint64_t> mSentObjectData; /* Object Offsets */
     };
     MovableData mData;
-    Parcel mSent;
-    Parcel mReply;
+    Parcel mSentDataOnly;
+    Parcel mReplyDataOnly;
 };
 
 } // namespace binder::debug
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index dd2be94..aba2319 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -69,10 +69,14 @@
 cc_test {
     name: "binderRecordReplayTest",
     srcs: ["binderRecordReplayTest.cpp"],
+    cflags: [
+        "-DBINDER_WITH_KERNEL_IPC",
+    ],
     shared_libs: [
         "libbinder",
         "libcutils",
         "libutils",
+        "liblog",
     ],
     static_libs: [
         "binderRecordReplayTestIface-cpp",
@@ -96,6 +100,9 @@
             enabled: true,
             platform_apis: true,
         },
+        ndk: {
+            enabled: false,
+        },
     },
 }
 
diff --git a/libs/binder/tests/IBinderRecordReplayTest.aidl b/libs/binder/tests/IBinderRecordReplayTest.aidl
index bd6b03c..29267e9 100644
--- a/libs/binder/tests/IBinderRecordReplayTest.aidl
+++ b/libs/binder/tests/IBinderRecordReplayTest.aidl
@@ -69,4 +69,10 @@
 
     void setSingleDataParcelableArray(in SingleDataParcelable[] input);
     SingleDataParcelable[] getSingleDataParcelableArray();
+
+    void setBinder(in IBinder binder);
+    IBinder getBinder();
+
+    void setFileDescriptor(in FileDescriptor fd);
+    FileDescriptor getFileDescriptor();
 }
diff --git a/libs/binder/tests/binderRecordReplayTest.cpp b/libs/binder/tests/binderRecordReplayTest.cpp
index 73c0a94..b975fad 100644
--- a/libs/binder/tests/binderRecordReplayTest.cpp
+++ b/libs/binder/tests/binderRecordReplayTest.cpp
@@ -24,7 +24,10 @@
 #include <binder/RecordedTransaction.h>
 #include <binder/unique_fd.h>
 
+#include <cutils/ashmem.h>
+
 #include <fuzzbinder/libbinder_driver.h>
+#include <fuzzbinder/random_binder.h>
 #include <fuzzer/FuzzedDataProvider.h>
 #include <fuzzseeds/random_parcel_seeds.h>
 
@@ -37,6 +40,7 @@
 
 using namespace android;
 using android::generateSeedsFromRecording;
+using android::RandomBinder;
 using android::binder::borrowed_fd;
 using android::binder::Status;
 using android::binder::unique_fd;
@@ -44,6 +48,7 @@
 using parcelables::SingleDataParcelable;
 
 const String16 kServerName = String16("binderRecordReplay");
+extern std::string kRandomInterfaceName;
 
 #define GENERATE_GETTER_SETTER_PRIMITIVE(name, T) \
     Status set##name(T input) {                   \
@@ -81,6 +86,7 @@
 
     GENERATE_GETTER_SETTER(String, String16);
     GENERATE_GETTER_SETTER(SingleDataParcelable, SingleDataParcelable);
+    GENERATE_GETTER_SETTER(Binder, sp<IBinder>);
 
     GENERATE_GETTER_SETTER(BooleanArray, std::vector<bool>);
     GENERATE_GETTER_SETTER(ByteArray, std::vector<uint8_t>);
@@ -91,12 +97,22 @@
     GENERATE_GETTER_SETTER(DoubleArray, std::vector<double>);
     GENERATE_GETTER_SETTER(StringArray, std::vector<::android::String16>);
     GENERATE_GETTER_SETTER(SingleDataParcelableArray, std::vector<SingleDataParcelable>);
+
+    Status setFileDescriptor(unique_fd input) {
+        mFd = std::move(unique_fd(dup(input)));
+        return Status::ok();
+    }
+
+    Status getFileDescriptor(unique_fd* output) {
+        *output = std::move(unique_fd(dup(mFd)));
+        return Status::ok();
+    }
+    unique_fd mFd;
 };
 
 std::vector<uint8_t> retrieveData(borrowed_fd fd) {
     struct stat fdStat;
     EXPECT_TRUE(fstat(fd.get(), &fdStat) != -1);
-    EXPECT_TRUE(fdStat.st_size != 0);
 
     std::vector<uint8_t> buffer(fdStat.st_size);
     auto readResult = android::base::ReadFully(fd, buffer.data(), fdStat.st_size);
@@ -115,6 +131,7 @@
     // Read the data which has been written to seed corpus
     ASSERT_EQ(0, lseek(seedFd.get(), 0, SEEK_SET));
     std::vector<uint8_t> seedData = retrieveData(seedFd);
+    EXPECT_TRUE(seedData.size() != 0);
 
     // use fuzzService to replay the corpus
     FuzzedDataProvider provider(seedData.data(), seedData.size());
@@ -148,7 +165,14 @@
     template <typename T, typename U>
     void recordReplay(Status (IBinderRecordReplayTest::*set)(T), U recordedValue,
                       Status (IBinderRecordReplayTest::*get)(U*), U changedValue) {
-        auto replayFunctions = {&replayBinder, &replayFuzzService};
+        using ReplayFunc = decltype(&replayFuzzService);
+        vector<ReplayFunc> replayFunctions = {&replayFuzzService};
+        if (!std::is_same_v<U, unique_fd> && !std::is_same_v<U, sp<IBinder>>) {
+            // Parcel retrieved from record replay doesn't have object information. use it for
+            // replaying primitive types only.
+            replayFunctions.push_back(&replayBinder);
+        }
+
         for (auto replayFunc : replayFunctions) {
             unique_fd fd(open("/data/local/tmp/binderRecordReplayTest.rec",
                               O_RDWR | O_CREAT | O_CLOEXEC, 0666));
@@ -156,7 +180,7 @@
 
             // record a transaction
             mBpBinder->startRecordingBinder(fd);
-            auto status = (*mInterface.*set)(recordedValue);
+            auto status = (*mInterface.*set)(std::move(recordedValue));
             EXPECT_TRUE(status.isOk());
             mBpBinder->stopRecordingBinder();
 
@@ -164,16 +188,22 @@
             U output;
             status = (*mInterface.*get)(&output);
             EXPECT_TRUE(status.isOk());
-            EXPECT_EQ(output, recordedValue);
+
+            // Expect this equal only if types are primitives
+            if (!std::is_same_v<U, unique_fd> && !std::is_same_v<U, sp<IBinder>>) {
+                EXPECT_EQ(output, recordedValue);
+            }
 
             // write over the existing state
-            status = (*mInterface.*set)(changedValue);
+            status = (*mInterface.*set)(std::move(changedValue));
             EXPECT_TRUE(status.isOk());
 
             status = (*mInterface.*get)(&output);
             EXPECT_TRUE(status.isOk());
 
-            EXPECT_EQ(output, changedValue);
+            if (!std::is_same_v<U, unique_fd> && !std::is_same_v<U, sp<IBinder>>) {
+                EXPECT_EQ(output, changedValue);
+            }
 
             // replay transaction
             ASSERT_EQ(0, lseek(fd.get(), 0, SEEK_SET));
@@ -186,7 +216,23 @@
 
             status = (*mInterface.*get)(&output);
             EXPECT_TRUE(status.isOk());
-            EXPECT_EQ(output, recordedValue);
+
+            // FDs and binders will be replaced with random fd and random binders
+            if constexpr (std::is_same_v<U, unique_fd>) {
+                // verify that replayed fd is /dev/null. This is being replayed from random_fd.cpp
+                // and choosing /dav/null while generating seed in binder2corpus
+                std::string fdPath = "/proc/self/fd/" + std::to_string(output.get());
+                char path[PATH_MAX];
+                ASSERT_GT(readlink(fdPath.c_str(), path, sizeof(path)), 0);
+                EXPECT_EQ(strcmp("/dev/null", path), 0);
+            } else if constexpr (std::is_same_v<U, sp<IBinder>>) {
+                // This is binder is replayed from random_binder.cpp using seed data which writes
+                // this interface.
+                EXPECT_EQ(String16(kRandomInterfaceName.c_str(), kRandomInterfaceName.size()),
+                          output->getInterfaceDescriptor());
+            } else {
+                ASSERT_EQ(recordedValue, output);
+            }
         }
     }
 
@@ -319,6 +365,32 @@
                  &IBinderRecordReplayTest::getSingleDataParcelableArray, changed);
 }
 
+TEST_F(BinderRecordReplayTest, ReplayBinder) {
+    vector<uint8_t> data = {0x8A, 0x19, 0x0D, 0x44, 0x37, 0x0D, 0x38, 0x5E, 0x9B, 0xAA, 0xF3, 0xDA};
+    sp<IBinder> saved = new RandomBinder(String16("random_interface"), std::move(data));
+    sp<IBinder> changed = IInterface::asBinder(defaultServiceManager());
+    recordReplay(&IBinderRecordReplayTest::setBinder, saved, &IBinderRecordReplayTest::getBinder,
+                 changed);
+}
+
+TEST_F(BinderRecordReplayTest, ReplayFd) {
+    // Write something to both fds we are setting
+    unique_fd saved(open("/data/local/tmp/test_fd", O_RDWR | O_CREAT | O_CLOEXEC, 0666));
+    std::string contentSaved = "This will be never read again for recorded fd!";
+    CHECK(android::base::WriteFully(saved, contentSaved.data(), contentSaved.size()))
+            << saved.get();
+
+    unique_fd changed(open("/data/local/tmp/test_des", O_RDWR | O_CREAT | O_CLOEXEC, 0666));
+    std::string contentChanged = "This will be never read again from changed fd!";
+    CHECK(android::base::WriteFully(changed, contentChanged.data(), contentChanged.size()))
+            << changed.get();
+
+    // When fds are replayed, it will be replaced by /dev/null..reading from it should yield
+    // null data
+    recordReplay(&IBinderRecordReplayTest::setFileDescriptor, std::move(unique_fd(dup(saved))),
+                 &IBinderRecordReplayTest::getFileDescriptor, std::move(unique_fd(dup(changed))));
+}
+
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
 
diff --git a/libs/binder/tests/parcel_fuzzer/Android.bp b/libs/binder/tests/parcel_fuzzer/Android.bp
index 83db6c9..fbab8f0 100644
--- a/libs/binder/tests/parcel_fuzzer/Android.bp
+++ b/libs/binder/tests/parcel_fuzzer/Android.bp
@@ -131,6 +131,13 @@
         "libcutils",
         "libutils",
     ],
+    static_libs: [
+        "libbinder_random_parcel",
+    ],
+    include_dirs: [
+        "bionic/libc/kernel/android/uapi/",
+        "bionic/libc/kernel/uapi/",
+    ],
     local_include_dirs: [
         "include_random_parcel_seeds",
     ],
@@ -140,8 +147,12 @@
 cc_binary_host {
     name: "binder2corpus",
     static_libs: [
+        "libbinder_random_parcel",
         "libbinder_random_parcel_seeds",
     ],
+    cflags: [
+        "-DBINDER_WITH_KERNEL_IPC",
+    ],
     srcs: [
         "binder2corpus/binder2corpus.cpp",
     ],
@@ -149,5 +160,6 @@
         "libbase",
         "libbinder",
         "libutils",
+        "libcutils",
     ],
 }
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
index 8fc9263..7a1688b 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
@@ -16,11 +16,25 @@
 
 #pragma once
 
+#include <binder/Binder.h>
 #include <binder/IBinder.h>
 #include <fuzzer/FuzzedDataProvider.h>
 
 namespace android {
 
+class RandomBinder : public BBinder {
+public:
+    RandomBinder(const String16& descriptor, std::vector<uint8_t>&& bytes);
+    const String16& getInterfaceDescriptor() const override;
+    status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) override;
+
+private:
+    String16 mDescriptor;
+    // note may not all be used
+    std::vector<uint8_t> mBytes;
+    FuzzedDataProvider mProvider;
+};
+
 // Get a random binder object for use in fuzzing.
 //
 // May return nullptr.
diff --git a/libs/binder/tests/parcel_fuzzer/random_binder.cpp b/libs/binder/tests/parcel_fuzzer/random_binder.cpp
index 8a1fecb..f41c35b 100644
--- a/libs/binder/tests/parcel_fuzzer/random_binder.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_binder.cpp
@@ -21,56 +21,52 @@
 #include <binder/IInterface.h>
 #include <binder/IServiceManager.h>
 
+size_t kRandomInterfaceLength = 50;
 namespace android {
 
-class RandomBinder : public BBinder {
-public:
-    RandomBinder(const String16& descriptor, std::vector<uint8_t>&& bytes)
-          : mDescriptor(descriptor),
-            mBytes(std::move(bytes)),
-            mProvider(mBytes.data(), mBytes.size()) {}
-    const String16& getInterfaceDescriptor() const override { return mDescriptor; }
+RandomBinder::RandomBinder(const String16& descriptor, std::vector<uint8_t>&& bytes)
+      : mDescriptor(descriptor),
+        mBytes(std::move(bytes)),
+        mProvider(mBytes.data(), mBytes.size()) {}
 
-    status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) override {
-        (void)code;
-        (void)data;
-        (void)reply;
-        (void)flags; // note - for maximum coverage even ignore if oneway
+const String16& RandomBinder::getInterfaceDescriptor() const {
+    return mDescriptor;
+}
 
-        if (mProvider.ConsumeBool()) {
-            return mProvider.ConsumeIntegral<status_t>();
-        }
+status_t RandomBinder::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                  uint32_t flags) {
+    (void)code;
+    (void)data;
+    (void)reply;
+    (void)flags; // note - for maximum coverage even ignore if oneway
 
-        if (reply == nullptr) return OK;
-
-        // TODO: things we could do to increase state space
-        // - also pull FDs and binders from 'data'
-        //     (optionally combine these into random parcel 'options')
-        // - also pull FDs and binders from random parcel 'options'
-        RandomParcelOptions options;
-
-        // random output
-        std::vector<uint8_t> subData = mProvider.ConsumeBytes<uint8_t>(
-                mProvider.ConsumeIntegralInRange<size_t>(0, mProvider.remaining_bytes()));
-        fillRandomParcel(reply, FuzzedDataProvider(subData.data(), subData.size()), &options);
-
-        return OK;
+    if (mProvider.ConsumeBool()) {
+        return mProvider.ConsumeIntegral<status_t>();
     }
 
-private:
-    String16 mDescriptor;
+    if (reply == nullptr) return OK;
 
-    // note may not all be used
-    std::vector<uint8_t> mBytes;
-    FuzzedDataProvider mProvider;
-};
+    // TODO: things we could do to increase state space
+    // - also pull FDs and binders from 'data'
+    //     (optionally combine these into random parcel 'options')
+    // - also pull FDs and binders from random parcel 'options'
+    RandomParcelOptions options;
+
+    // random output
+    std::vector<uint8_t> subData = mProvider.ConsumeBytes<uint8_t>(
+            mProvider.ConsumeIntegralInRange<size_t>(0, mProvider.remaining_bytes()));
+    fillRandomParcel(reply, FuzzedDataProvider(subData.data(), subData.size()), &options);
+
+    return OK;
+}
 
 sp<IBinder> getRandomBinder(FuzzedDataProvider* provider) {
     auto makeFunc = provider->PickValueInArray<const std::function<sp<IBinder>()>>({
             [&]() {
                 // descriptor is the length of a class name, e.g.
                 // "some.package.Foo"
-                std::string str = provider->ConsumeRandomLengthString(100 /*max length*/);
+                std::string str =
+                        provider->ConsumeRandomLengthString(kRandomInterfaceLength /*max length*/);
 
                 // arbitrarily consume remaining data to create a binder that can return
                 // random results - coverage guided fuzzer should ensure all of the remaining
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
index 4e58dc4..62b8433 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
@@ -73,7 +73,7 @@
                         return;
                     }
 
-                    if (options->extraFds.size() > 0 && provider.ConsumeBool()) {
+                    if (provider.ConsumeBool() && options->extraFds.size() > 0) {
                         const unique_fd& fd = options->extraFds.at(
                                 provider.ConsumeIntegralInRange<size_t>(0,
                                                                         options->extraFds.size() -
@@ -102,7 +102,7 @@
                     }
 
                     sp<IBinder> binder;
-                    if (options->extraBinders.size() > 0 && provider.ConsumeBool()) {
+                    if (provider.ConsumeBool() && options->extraBinders.size() > 0) {
                         binder = options->extraBinders.at(
                                 provider.ConsumeIntegralInRange<size_t>(0,
                                                                         options->extraBinders
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
index 7b3c806..fd9777a 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
@@ -14,16 +14,26 @@
  * limitations under the License.
  */
 
+#include <linux/android/binder.h>
+
 #include <android-base/logging.h>
 
+#include <binder/Parcel.h>
 #include <binder/RecordedTransaction.h>
 
 #include <fuzzseeds/random_parcel_seeds.h>
 
+#include <stack>
+#include <string>
 #include "../../file.h"
 
 using android::binder::borrowed_fd;
 using android::binder::WriteFully;
+using std::stack;
+
+extern size_t kRandomInterfaceLength;
+// Keep this in sync with max_length in random_binder.cpp while creating a RandomBinder
+std::string kRandomInterfaceName(kRandomInterfaceLength, 'i');
 
 namespace android {
 namespace impl {
@@ -66,6 +76,162 @@
 
 } // namespace impl
 
+struct ProviderMetadata {
+    size_t position;
+    size_t value;
+
+    ProviderMetadata() {
+        value = 0;
+        position = 0;
+    }
+};
+
+// Assuming current seed path is inside the fillRandomParcel function, start of the loop.
+void writeRandomBinder(borrowed_fd fd, vector<uint8_t>& fillParcelBuffer,
+                       stack<ProviderMetadata>& remainingPositions) {
+    // Choose 2 index in array
+    size_t fillFuncIndex = 2;
+    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(2),
+                              fillFuncIndex);
+
+    // navigate to getRandomBinder. provide consume bool false
+    bool flag = false;
+    impl::writeReversedBuffer(fillParcelBuffer, flag);
+
+    // selecting RandomBinder, other binders in the list are not recorded as KernelObjects
+    size_t randomBinderIndex = 0;
+    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(2),
+                              randomBinderIndex);
+
+    // write random string of length 100 in actual buffer array.
+    CHECK(WriteFully(fd, kRandomInterfaceName.c_str(), kRandomInterfaceName.size())) << fd.get();
+
+    // These will be bytes which are used inside of RandomBinder
+    // simplest path for these bytes is going to be consume bool -> return random status
+    vector<uint8_t> randomBinderBuffer;
+
+    bool returnRandomInt = true;
+    impl::writeReversedBuffer(randomBinderBuffer, returnRandomInt);
+
+    status_t randomStatus = 0;
+    impl::writeReversedBuffer(randomBinderBuffer, randomStatus);
+
+    // write integral in range to consume bytes for random binder
+    ProviderMetadata providerData;
+    providerData.position = fillParcelBuffer.size();
+    providerData.value = randomBinderBuffer.size();
+    remainingPositions.push(providerData);
+
+    // Write to fd
+    CHECK(WriteFully(fd, randomBinderBuffer.data(), randomBinderBuffer.size())) << fd.get();
+}
+
+// Assuming current seed path is inside the fillRandomParcelFunction, start of the loop.
+void writeRandomFd(vector<uint8_t>& fillParcelBuffer) {
+    // path to random fd
+    size_t fillFuncIndex = 1;
+    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(2),
+                              fillFuncIndex);
+
+    bool flag = false;
+    impl::writeReversedBuffer(fillParcelBuffer, flag);
+
+    // go for /dev/null index 1
+    size_t fdIndex = 1;
+    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(3),
+                              fdIndex);
+}
+
+void writeParcelData(borrowed_fd fd, vector<uint8_t>& fillParcelBuffer,
+                     stack<ProviderMetadata>& remainingPositions, const uint8_t* data, size_t start,
+                     size_t length) {
+    // need to write parcel data till next offset with instructions to pick random bytes till offset
+    size_t fillFuncIndex = 0;
+    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(2),
+                              fillFuncIndex);
+
+    // provide how much bytes to read in control buffer
+    ProviderMetadata providerData;
+    providerData.position = fillParcelBuffer.size();
+    providerData.value = length;
+    remainingPositions.push(providerData);
+
+    // provide actual bytes
+    CHECK(WriteFully(fd, data + start, length)) << fd.get();
+}
+
+/**
+ *   Generate sequence of copy data, write fd and write binder instructions and required data.
+ *   Data which will be read using consumeBytes is written to fd directly. Data which is read in
+ *   form integer is consumed from rear end FuzzedDataProvider. So insert it in fillParcelBuffer and
+ *   then write to fd
+ */
+size_t regenerateParcel(borrowed_fd fd, vector<uint8_t>& fillParcelBuffer, const Parcel& p,
+                        size_t dataSize, const vector<uint64_t>& objectOffsets) {
+    stack<ProviderMetadata> remainingPositions;
+    size_t copiedDataPosition = 0;
+    const uint8_t* parcelData = p.data();
+    size_t numBinders = 0;
+    size_t numFds = 0;
+
+    for (auto offset : objectOffsets) {
+        // Check what type of object is present here
+        const flat_binder_object* flatObject =
+                reinterpret_cast<const flat_binder_object*>(parcelData + offset);
+        // Copy till the object offset
+        writeParcelData(fd, fillParcelBuffer, remainingPositions, parcelData, copiedDataPosition,
+                        offset - copiedDataPosition);
+        copiedDataPosition = offset;
+        if (flatObject->hdr.type == BINDER_TYPE_BINDER ||
+            flatObject->hdr.type == BINDER_TYPE_HANDLE) {
+            writeRandomBinder(fd, fillParcelBuffer, remainingPositions);
+            numBinders++;
+            // In case of binder, stability is written after the binder object.
+            // We want to move the copiedDataPosition further to account for this stability field
+            copiedDataPosition += sizeof(int32_t) + sizeof(flat_binder_object);
+        } else if (flatObject->hdr.type == BINDER_TYPE_FD) {
+            writeRandomFd(fillParcelBuffer);
+            numFds++;
+            copiedDataPosition += sizeof(flat_binder_object);
+        }
+    }
+
+    if (copiedDataPosition < dataSize) {
+        // copy remaining data from recorded parcel -> last Object to end of the data
+        writeParcelData(fd, fillParcelBuffer, remainingPositions, parcelData, copiedDataPosition,
+                        dataSize - copiedDataPosition);
+    }
+
+    // We need to write bytes for selecting integer within range of  0 to provide.remaining_bytes()
+    // is called.
+    size_t totalWrittenBytes = dataSize - (sizeof(flat_binder_object) * objectOffsets.size()) -
+            (sizeof(int32_t) * numBinders) +
+            (kRandomInterfaceName.size() /*Interface String*/ + sizeof(bool) + sizeof(status_t)) *
+                    numBinders;
+
+    // Code in fuzzService relies on provider.remaining_bytes() to select random bytes using
+    // consume integer. use the calculated remaining_bytes to generate byte buffer which can
+    // generate required fds and binders in fillRandomParcel function.
+    while (!remainingPositions.empty()) {
+        auto meta = remainingPositions.top();
+        remainingPositions.pop();
+        size_t remainingBytes = totalWrittenBytes + fillParcelBuffer.size() - meta.position;
+
+        vector<uint8_t> remReversedBytes;
+        impl::writeReversedBuffer(remReversedBytes, static_cast<size_t>(0), remainingBytes,
+                                  meta.value);
+        // Check the order of buffer which is being written
+        fillParcelBuffer.insert(fillParcelBuffer.end() - meta.position, remReversedBytes.begin(),
+                                remReversedBytes.end());
+    }
+
+    return totalWrittenBytes;
+}
+
+/**
+ * Current corpus format
+ * |Reserved bytes(8)|parcel data|fillParcelBuffer|integralBuffer|
+ */
 void generateSeedsFromRecording(borrowed_fd fd,
                                 const binder::debug::RecordedTransaction& transaction) {
     // Write Reserved bytes for future use
@@ -123,17 +289,9 @@
     uint8_t writeHeaderInternal = 0;
     impl::writeReversedBuffer(fillParcelBuffer, writeHeaderInternal);
 
-    // Choose to write data in parcel
-    size_t fillFuncIndex = 0;
-    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), static_cast<size_t>(2),
-                              fillFuncIndex);
-
-    // Write parcel data size from recorded transaction
-    size_t toWrite = transaction.getDataParcel().dataBufferSize();
-    impl::writeReversedBuffer(fillParcelBuffer, static_cast<size_t>(0), toWrite, toWrite);
-
-    // Write parcel data with size towrite from recorded transaction
-    CHECK(WriteFully(fd, dataParcel.data(), toWrite)) << fd.get();
+    auto objectMetadata = transaction.getObjectOffsets();
+    size_t toWrite = regenerateParcel(fd, fillParcelBuffer, dataParcel, dataParcel.dataBufferSize(),
+                                      objectMetadata);
 
     // Write Fill Parcel buffer size in integralBuffer so that fuzzService knows size of data
     size_t subDataSize = toWrite + fillParcelBuffer.size();
diff --git a/libs/ftl/Android.bp b/libs/ftl/Android.bp
index 918680d..5ac965f 100644
--- a/libs/ftl/Android.bp
+++ b/libs/ftl/Android.bp
@@ -10,11 +10,15 @@
 cc_test {
     name: "ftl_test",
     test_suites: ["device-tests"],
+    header_libs: [
+        "libbase_headers",
+    ],
     srcs: [
         "algorithm_test.cpp",
         "cast_test.cpp",
         "concat_test.cpp",
         "enum_test.cpp",
+        "expected_test.cpp",
         "fake_guard_test.cpp",
         "flags_test.cpp",
         "function_test.cpp",
diff --git a/libs/ftl/expected_test.cpp b/libs/ftl/expected_test.cpp
new file mode 100644
index 0000000..8cb07e4
--- /dev/null
+++ b/libs/ftl/expected_test.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ftl/expected.h>
+#include <gtest/gtest.h>
+
+#include <string>
+#include <system_error>
+
+namespace android::test {
+
+using IntExp = ftl::Expected<int, std::errc>;
+using StringExp = ftl::Expected<std::string, std::errc>;
+
+using namespace std::string_literals;
+
+TEST(Expected, Construct) {
+  // Default value.
+  EXPECT_TRUE(IntExp().has_value());
+  EXPECT_EQ(IntExp(), IntExp(0));
+
+  EXPECT_TRUE(StringExp().has_value());
+  EXPECT_EQ(StringExp(), StringExp(""));
+
+  // Value.
+  ASSERT_TRUE(IntExp(42).has_value());
+  EXPECT_EQ(42, IntExp(42).value());
+
+  ASSERT_TRUE(StringExp("test").has_value());
+  EXPECT_EQ("test"s, StringExp("test").value());
+
+  // Error.
+  const auto exp = StringExp(ftl::Unexpected(std::errc::invalid_argument));
+  ASSERT_FALSE(exp.has_value());
+  EXPECT_EQ(std::errc::invalid_argument, exp.error());
+}
+
+TEST(Expected, HasError) {
+  EXPECT_FALSE(IntExp(123).has_error([](auto) { return true; }));
+  EXPECT_FALSE(IntExp(ftl::Unexpected(std::errc::io_error)).has_error([](auto) { return false; }));
+
+  EXPECT_TRUE(StringExp(ftl::Unexpected(std::errc::permission_denied)).has_error([](auto e) {
+    return e == std::errc::permission_denied;
+  }));
+}
+
+TEST(Expected, ValueOpt) {
+  EXPECT_EQ(ftl::Optional(-1), IntExp(-1).value_opt());
+  EXPECT_EQ(std::nullopt, IntExp(ftl::Unexpected(std::errc::broken_pipe)).value_opt());
+
+  {
+    const StringExp exp("foo"s);
+    EXPECT_EQ(ftl::Optional('f'),
+              exp.value_opt().transform([](const auto& s) { return s.front(); }));
+    EXPECT_EQ("foo"s, exp.value());
+  }
+  {
+    StringExp exp("foobar"s);
+    EXPECT_EQ(ftl::Optional(6), std::move(exp).value_opt().transform(&std::string::length));
+    EXPECT_TRUE(exp.value().empty());
+  }
+}
+
+}  // namespace android::test
diff --git a/libs/ftl/small_map_test.cpp b/libs/ftl/small_map_test.cpp
index 634877f..e96d70d 100644
--- a/libs/ftl/small_map_test.cpp
+++ b/libs/ftl/small_map_test.cpp
@@ -189,9 +189,20 @@
   }
 }
 
-TEST(SmallMap, TryEmplace) {
-  SmallMap<int, std::string, 3> map;
-  using Pair = decltype(map)::value_type;
+template <typename Capacity>
+struct SmallMapTest : testing::Test {
+  static constexpr std::size_t kCapacity = Capacity{}();
+};
+
+template <std::size_t N>
+using Capacity = std::integral_constant<std::size_t, N>;
+
+using Capacities = testing::Types<Capacity<3>, Capacity<0>>;
+TYPED_TEST_SUITE(SmallMapTest, Capacities, );
+
+TYPED_TEST(SmallMapTest, TryEmplace) {
+  SmallMap<int, std::string, TestFixture::kCapacity> map;
+  using Pair = typename decltype(map)::value_type;
 
   {
     const auto [it, ok] = map.try_emplace(123, "abc");
@@ -207,14 +218,22 @@
     const auto [it, ok] = map.try_emplace(-1);
     ASSERT_TRUE(ok);
     EXPECT_EQ(*it, Pair(-1, std::string()));
-    EXPECT_FALSE(map.dynamic());
+    if constexpr (map.static_capacity() > 0) {
+      EXPECT_FALSE(map.dynamic());
+    } else {
+      EXPECT_TRUE(map.dynamic());
+    }
   }
   {
     // Insertion fails if mapping exists.
     const auto [it, ok] = map.try_emplace(42, "!!!");
     EXPECT_FALSE(ok);
     EXPECT_EQ(*it, Pair(42, "???"));
-    EXPECT_FALSE(map.dynamic());
+    if constexpr (map.static_capacity() > 0) {
+      EXPECT_FALSE(map.dynamic());
+    } else {
+      EXPECT_TRUE(map.dynamic());
+    }
   }
   {
     // Insertion at capacity promotes the map.
@@ -240,9 +259,9 @@
 
 }  // namespace
 
-TEST(SmallMap, TryReplace) {
-  SmallMap<int, String, 3> map = ftl::init::map(1, "a")(2, "B");
-  using Pair = decltype(map)::value_type;
+TYPED_TEST(SmallMapTest, TryReplace) {
+  SmallMap<int, String, TestFixture::kCapacity> map = ftl::init::map(1, "a")(2, "B");
+  using Pair = typename decltype(map)::value_type;
 
   {
     // Replacing fails unless mapping exists.
@@ -260,7 +279,12 @@
     EXPECT_EQ(*it, Pair(2, "b"));
   }
 
-  EXPECT_FALSE(map.dynamic());
+  if constexpr (map.static_capacity() > 0) {
+    EXPECT_FALSE(map.dynamic());
+  } else {
+    EXPECT_TRUE(map.dynamic());
+  }
+
   EXPECT_TRUE(map.try_emplace(3, "abc").second);
   EXPECT_TRUE(map.try_emplace(4, "d").second);
   EXPECT_TRUE(map.dynamic());
@@ -284,9 +308,9 @@
   EXPECT_EQ(map, SmallMap(ftl::init::map(4, "d"s)(3, "c"s)(2, "b"s)(1, "a"s)));
 }
 
-TEST(SmallMap, EmplaceOrReplace) {
-  SmallMap<int, String, 3> map = ftl::init::map(1, "a")(2, "B");
-  using Pair = decltype(map)::value_type;
+TYPED_TEST(SmallMapTest, EmplaceOrReplace) {
+  SmallMap<int, String, TestFixture::kCapacity> map = ftl::init::map(1, "a")(2, "B");
+  using Pair = typename decltype(map)::value_type;
 
   {
     // New mapping is emplaced.
@@ -305,7 +329,12 @@
     EXPECT_EQ(*it, Pair(2, "b"));
   }
 
-  EXPECT_FALSE(map.dynamic());
+  if constexpr (map.static_capacity() > 0) {
+    EXPECT_FALSE(map.dynamic());
+  } else {
+    EXPECT_TRUE(map.dynamic());
+  }
+
   EXPECT_FALSE(map.emplace_or_replace(3, "abc").second);  // Replace.
   EXPECT_TRUE(map.emplace_or_replace(4, "d").second);     // Emplace.
   EXPECT_TRUE(map.dynamic());
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 19693e3..fb69fda 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -887,6 +887,9 @@
     int callbackTicket = 0;
     uint64_t currentFrameNumber = 0;
     BufferItem item;
+    int connectedApi;
+    sp<Fence> lastQueuedFence;
+
     { // Autolock scope
         std::lock_guard<std::mutex> lock(mCore->mMutex);
 
@@ -1056,6 +1059,13 @@
         callbackTicket = mNextCallbackTicket++;
 
         VALIDATE_CONSISTENCY();
+
+        connectedApi = mCore->mConnectedApi;
+        lastQueuedFence = std::move(mLastQueueBufferFence);
+
+        mLastQueueBufferFence = std::move(acquireFence);
+        mLastQueuedCrop = item.mCrop;
+        mLastQueuedTransform = item.mTransform;
     } // Autolock scope
 
     // It is okay not to clear the GraphicBuffer when the consumer is SurfaceFlinger because
@@ -1079,9 +1089,6 @@
     // Call back without the main BufferQueue lock held, but with the callback
     // lock held so we can ensure that callbacks occur in order
 
-    int connectedApi;
-    sp<Fence> lastQueuedFence;
-
     { // scope for the lock
         std::unique_lock<std::mutex> lock(mCallbackMutex);
         while (callbackTicket != mCurrentCallbackTicket) {
@@ -1094,13 +1101,6 @@
             frameReplacedListener->onFrameReplaced(item);
         }
 
-        connectedApi = mCore->mConnectedApi;
-        lastQueuedFence = std::move(mLastQueueBufferFence);
-
-        mLastQueueBufferFence = std::move(acquireFence);
-        mLastQueuedCrop = item.mCrop;
-        mLastQueuedTransform = item.mTransform;
-
         ++mCurrentCallbackTicket;
         mCallbackCondition.notify_all();
     }
@@ -1653,9 +1653,10 @@
 status_t BufferQueueProducer::getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
         sp<Fence>* outFence, float outTransformMatrix[16]) {
     ATRACE_CALL();
-    BQ_LOGV("getLastQueuedBuffer");
 
     std::lock_guard<std::mutex> lock(mCore->mMutex);
+    BQ_LOGV("getLastQueuedBuffer, slot=%d", mCore->mLastQueuedSlot);
+
     if (mCore->mLastQueuedSlot == BufferItem::INVALID_BUFFER_SLOT) {
         *outBuffer = nullptr;
         *outFence = Fence::NO_FENCE;
@@ -1679,10 +1680,11 @@
 status_t BufferQueueProducer::getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence,
                                                   Rect* outRect, uint32_t* outTransform) {
     ATRACE_CALL();
-    BQ_LOGV("getLastQueuedBuffer");
 
     std::lock_guard<std::mutex> lock(mCore->mMutex);
-    if (mCore->mLastQueuedSlot == BufferItem::INVALID_BUFFER_SLOT) {
+    BQ_LOGV("getLastQueuedBuffer, slot=%d", mCore->mLastQueuedSlot);
+    if (mCore->mLastQueuedSlot == BufferItem::INVALID_BUFFER_SLOT ||
+        mSlots[mCore->mLastQueuedSlot].mBufferState.isDequeued()) {
         *outBuffer = nullptr;
         *outFence = Fence::NO_FENCE;
         return NO_ERROR;
diff --git a/libs/gui/Choreographer.cpp b/libs/gui/Choreographer.cpp
index 7d37fd3..4518b67 100644
--- a/libs/gui/Choreographer.cpp
+++ b/libs/gui/Choreographer.cpp
@@ -116,7 +116,7 @@
     std::lock_guard<std::mutex> _l(gChoreographers.lock);
     gChoreographers.ptrs.erase(std::remove_if(gChoreographers.ptrs.begin(),
                                               gChoreographers.ptrs.end(),
-                                              [=](Choreographer* c) { return c == this; }),
+                                              [=, this](Choreographer* c) { return c == this; }),
                                gChoreographers.ptrs.end());
     // Only poke DisplayManagerGlobal to unregister if we previously registered
     // callbacks.
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 38fab9c..7564c26 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -199,7 +199,7 @@
     SAFE_PARCEL(output.writeParcelable, trustedPresentationListener);
     SAFE_PARCEL(output.writeFloat, currentHdrSdrRatio);
     SAFE_PARCEL(output.writeFloat, desiredHdrSdrRatio);
-    SAFE_PARCEL(output.writeInt32, static_cast<int32_t>(cachingHint))
+    SAFE_PARCEL(output.writeInt32, static_cast<int32_t>(cachingHint));
     return NO_ERROR;
 }
 
@@ -484,6 +484,12 @@
             flags &= ~eLayerIsDisplayDecoration;
             ALOGE("Stripped attempt to set LayerIsDisplayDecoration in sanitize");
         }
+        if ((mask & eCanOccludePresentation) &&
+            !(permissions & Permission::ACCESS_SURFACE_FLINGER)) {
+            flags &= ~eCanOccludePresentation;
+            mask &= ~eCanOccludePresentation;
+            ALOGE("Stripped attempt to set eCanOccludePresentation in sanitize");
+        }
     }
 
     if (what & layer_state_t::eInputInfoChanged) {
diff --git a/libs/gui/WindowInfo.cpp b/libs/gui/WindowInfo.cpp
index 95b2641..9429d2c 100644
--- a/libs/gui/WindowInfo.cpp
+++ b/libs/gui/WindowInfo.cpp
@@ -109,7 +109,8 @@
             info.inputConfig == inputConfig && info.displayId == displayId &&
             info.replaceTouchableRegionWithCrop == replaceTouchableRegionWithCrop &&
             info.applicationInfo == applicationInfo && info.layoutParamsType == layoutParamsType &&
-            info.layoutParamsFlags == layoutParamsFlags;
+            info.layoutParamsFlags == layoutParamsFlags &&
+            info.canOccludePresentation == canOccludePresentation;
 }
 
 status_t WindowInfo::writeToParcel(android::Parcel* parcel) const {
@@ -158,8 +159,9 @@
         parcel->write(touchableRegion) ?:
         parcel->writeBool(replaceTouchableRegionWithCrop) ?:
         parcel->writeStrongBinder(touchableRegionCropHandle.promote()) ?:
-        parcel->writeStrongBinder(windowToken);
-        parcel->writeStrongBinder(focusTransferTarget);
+        parcel->writeStrongBinder(windowToken) ?:
+        parcel->writeStrongBinder(focusTransferTarget) ?:
+        parcel->writeBool(canOccludePresentation);
     // clang-format on
     return status;
 }
@@ -210,7 +212,8 @@
         parcel->readBool(&replaceTouchableRegionWithCrop) ?:
         parcel->readNullableStrongBinder(&touchableRegionCropHandleSp) ?:
         parcel->readNullableStrongBinder(&windowToken) ?:
-        parcel->readNullableStrongBinder(&focusTransferTarget);
+        parcel->readNullableStrongBinder(&focusTransferTarget) ?:
+        parcel->readBool(&canOccludePresentation);
 
     // clang-format on
 
@@ -273,6 +276,7 @@
         << "ms, token=" << info.token.get()
         << ", touchOcclusionMode=" << ftl::enum_string(info.touchOcclusionMode) << "\n"
         << transform;
+    if (info.canOccludePresentation) out << " canOccludePresentation";
     return out;
 }
 
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 6b8e824..920310e 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -161,6 +161,9 @@
         // See SurfaceView scaling behavior for more details.
         eIgnoreDestinationFrame = 0x400,
         eLayerIsRefreshRateIndicator = 0x800, // REFRESH_RATE_INDICATOR
+        // Sets a property on this layer indicating that its visible region should be considered
+        // when computing TrustedPresentation Thresholds.
+        eCanOccludePresentation = 0x1000,
     };
 
     enum {
diff --git a/libs/gui/include/gui/WindowInfo.h b/libs/gui/include/gui/WindowInfo.h
index e72fd59..32d60be 100644
--- a/libs/gui/include/gui/WindowInfo.h
+++ b/libs/gui/include/gui/WindowInfo.h
@@ -246,6 +246,10 @@
     // any other window.
     sp<IBinder> focusTransferTarget;
 
+    // Sets a property on this window indicating that its visible region should be considered when
+    // computing TrustedPresentation Thresholds.
+    bool canOccludePresentation = false;
+
     void setInputConfig(ftl::Flags<InputConfig> config, bool value);
 
     void addTouchableRegion(const Rect& region);
diff --git a/libs/gui/tests/EndToEndNativeInputTest.cpp b/libs/gui/tests/EndToEndNativeInputTest.cpp
index b9ab803..a9d6e8d 100644
--- a/libs/gui/tests/EndToEndNativeInputTest.cpp
+++ b/libs/gui/tests/EndToEndNativeInputTest.cpp
@@ -63,8 +63,7 @@
 using Transaction = SurfaceComposerClient::Transaction;
 
 sp<IInputFlinger> getInputFlinger() {
-   sp<IBinder> input(defaultServiceManager()->getService(
-            String16("inputflinger")));
+    sp<IBinder> input(defaultServiceManager()->waitForService(String16("inputflinger")));
     if (input == nullptr) {
         ALOGE("Failed to link to input service");
     } else { ALOGE("Linked to input"); }
@@ -104,8 +103,13 @@
         if (noInputChannel) {
             mInputInfo.setInputConfig(WindowInfo::InputConfig::NO_INPUT_CHANNEL, true);
         } else {
-            mClientChannel = std::make_shared<InputChannel>();
-            mInputFlinger->createInputChannel("testchannels", mClientChannel.get());
+            android::os::InputChannelCore tempChannel;
+            android::binder::Status result =
+                    mInputFlinger->createInputChannel("testchannels", &tempChannel);
+            if (!result.isOk()) {
+                ADD_FAILURE() << "binder call to createInputChannel failed";
+            }
+            mClientChannel = InputChannel::create(std::move(tempChannel));
             mInputInfo.token = mClientChannel->getConnectionToken();
             mInputConsumer = new InputConsumer(mClientChannel);
         }
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index 3d3bf13..e5fb2c5 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -175,6 +175,7 @@
     ],
     srcs: [
         "android/os/IInputFlinger.aidl",
+        "android/os/InputChannelCore.aidl",
         "AccelerationCurve.cpp",
         "Input.cpp",
         "InputDevice.cpp",
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 8eaff00..0d29b4d 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -374,7 +374,7 @@
     out << ", deviceId=" << event.getDeviceId();
     out << ", source=" << inputEventSourceToString(event.getSource());
     out << ", displayId=" << event.getDisplayId();
-    out << ", eventId=" << event.getId();
+    out << ", eventId=0x" << std::hex << event.getId() << std::dec;
     out << "}";
     return out;
 }
@@ -1051,7 +1051,7 @@
     out << ", deviceId=" << event.getDeviceId();
     out << ", source=" << inputEventSourceToString(event.getSource());
     out << ", displayId=" << event.getDisplayId();
-    out << ", eventId=" << event.getId();
+    out << ", eventId=0x" << std::hex << event.getId() << std::dec;
     out << "}";
     return out;
 }
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index 9c7c0c1..d4dbc45 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -190,14 +190,16 @@
         mHasSensor(other.mHasSensor),
         mMotionRanges(other.mMotionRanges),
         mSensors(other.mSensors),
-        mLights(other.mLights) {}
+        mLights(other.mLights),
+        mViewBehavior(other.mViewBehavior) {}
 
 InputDeviceInfo::~InputDeviceInfo() {
 }
 
 void InputDeviceInfo::initialize(int32_t id, int32_t generation, int32_t controllerNumber,
                                  const InputDeviceIdentifier& identifier, const std::string& alias,
-                                 bool isExternal, bool hasMic, int32_t associatedDisplayId) {
+                                 bool isExternal, bool hasMic, int32_t associatedDisplayId,
+                                 InputDeviceViewBehavior viewBehavior) {
     mId = id;
     mGeneration = generation;
     mControllerNumber = controllerNumber;
@@ -212,6 +214,7 @@
     mHasBattery = false;
     mHasButtonUnderPad = false;
     mHasSensor = false;
+    mViewBehavior = viewBehavior;
     mUsiVersion.reset();
     mMotionRanges.clear();
     mSensors.clear();
diff --git a/libs/input/InputEventLabels.cpp b/libs/input/InputEventLabels.cpp
index 0e627e5..8db0ca5 100644
--- a/libs/input/InputEventLabels.cpp
+++ b/libs/input/InputEventLabels.cpp
@@ -348,7 +348,9 @@
     DEFINE_KEYCODE(MACRO_1), \
     DEFINE_KEYCODE(MACRO_2), \
     DEFINE_KEYCODE(MACRO_3), \
-    DEFINE_KEYCODE(MACRO_4)
+    DEFINE_KEYCODE(MACRO_4), \
+    DEFINE_KEYCODE(EMOJI_PICKER), \
+    DEFINE_KEYCODE(SCREENSHOT)
 
 // NOTE: If you add a new axis here you must also add it to several other files.
 //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 37de00c..e49f4eb 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -95,6 +95,21 @@
     return __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG "Resampling", ANDROID_LOG_INFO);
 }
 
+android::base::unique_fd dupChannelFd(int fd) {
+    android::base::unique_fd newFd(::dup(fd));
+    if (!newFd.ok()) {
+        ALOGE("Could not duplicate fd %i : %s", fd, strerror(errno));
+        const bool hitFdLimit = errno == EMFILE || errno == ENFILE;
+        // If this process is out of file descriptors, then throwing that might end up exploding
+        // on the other side of a binder call, which isn't really helpful.
+        // Better to just crash here and hope that the FD leak is slow.
+        // Other failures could be client errors, so we still propagate those back to the caller.
+        LOG_ALWAYS_FATAL_IF(hitFdLimit, "Too many open files, could not duplicate input channel");
+        return {};
+    }
+    return newFd;
+}
+
 } // namespace
 
 using android::base::Result;
@@ -395,15 +410,23 @@
     return std::unique_ptr<InputChannel>(new InputChannel(name, std::move(fd), token));
 }
 
-InputChannel::InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token)
-      : mName(std::move(name)), mFd(std::move(fd)), mToken(std::move(token)) {
+std::unique_ptr<InputChannel> InputChannel::create(
+        android::os::InputChannelCore&& parceledChannel) {
+    return InputChannel::create(parceledChannel.name, parceledChannel.fd.release(),
+                                parceledChannel.token);
+}
+
+InputChannel::InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token) {
+    this->name = std::move(name);
+    this->fd.reset(std::move(fd));
+    this->token = std::move(token);
     ALOGD_IF(DEBUG_CHANNEL_LIFECYCLE, "Input channel constructed: name='%s', fd=%d",
-             getName().c_str(), getFd().get());
+             getName().c_str(), getFd());
 }
 
 InputChannel::~InputChannel() {
     ALOGD_IF(DEBUG_CHANNEL_LIFECYCLE, "Input channel destroyed: name='%s', fd=%d",
-             getName().c_str(), getFd().get());
+             getName().c_str(), getFd());
 }
 
 status_t InputChannel::openInputChannelPair(const std::string& name,
@@ -441,19 +464,19 @@
     ATRACE_NAME_IF(ATRACE_ENABLED(),
                    StringPrintf("sendMessage(inputChannel=%s, seq=0x%" PRIx32 ", type=0x%" PRIx32
                                 ")",
-                                mName.c_str(), msg->header.seq, msg->header.type));
+                                name.c_str(), msg->header.seq, msg->header.type));
     const size_t msgLength = msg->size();
     InputMessage cleanMsg;
     msg->getSanitizedCopy(&cleanMsg);
     ssize_t nWrite;
     do {
-        nWrite = ::send(getFd().get(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
+        nWrite = ::send(getFd(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
     } while (nWrite == -1 && errno == EINTR);
 
     if (nWrite < 0) {
         int error = errno;
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ error sending message of type %s, %s",
-                 mName.c_str(), ftl::enum_string(msg->header.type).c_str(), strerror(error));
+                 name.c_str(), ftl::enum_string(msg->header.type).c_str(), strerror(error));
         if (error == EAGAIN || error == EWOULDBLOCK) {
             return WOULD_BLOCK;
         }
@@ -465,12 +488,12 @@
 
     if (size_t(nWrite) != msgLength) {
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES,
-                 "channel '%s' ~ error sending message type %s, send was incomplete", mName.c_str(),
+                 "channel '%s' ~ error sending message type %s, send was incomplete", name.c_str(),
                  ftl::enum_string(msg->header.type).c_str());
         return DEAD_OBJECT;
     }
 
-    ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ sent message of type %s", mName.c_str(),
+    ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ sent message of type %s", name.c_str(),
              ftl::enum_string(msg->header.type).c_str());
 
     return OK;
@@ -479,13 +502,13 @@
 status_t InputChannel::receiveMessage(InputMessage* msg) {
     ssize_t nRead;
     do {
-        nRead = ::recv(getFd().get(), msg, sizeof(InputMessage), MSG_DONTWAIT);
+        nRead = ::recv(getFd(), msg, sizeof(InputMessage), MSG_DONTWAIT);
     } while (nRead == -1 && errno == EINTR);
 
     if (nRead < 0) {
         int error = errno;
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ receive message failed, errno=%d",
-                 mName.c_str(), errno);
+                 name.c_str(), errno);
         if (error == EAGAIN || error == EWOULDBLOCK) {
             return WOULD_BLOCK;
         }
@@ -497,29 +520,29 @@
 
     if (nRead == 0) { // check for EOF
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES,
-                 "channel '%s' ~ receive message failed because peer was closed", mName.c_str());
+                 "channel '%s' ~ receive message failed because peer was closed", name.c_str());
         return DEAD_OBJECT;
     }
 
     if (!msg->isValid(nRead)) {
-        ALOGE("channel '%s' ~ received invalid message of size %zd", mName.c_str(), nRead);
+        ALOGE("channel '%s' ~ received invalid message of size %zd", name.c_str(), nRead);
         return BAD_VALUE;
     }
 
-    ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ received message of type %s", mName.c_str(),
+    ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ received message of type %s", name.c_str(),
              ftl::enum_string(msg->header.type).c_str());
     if (ATRACE_ENABLED()) {
         // Add an additional trace point to include data about the received message.
         std::string message = StringPrintf("receiveMessage(inputChannel=%s, seq=0x%" PRIx32
                                            ", type=0x%" PRIx32 ")",
-                                           mName.c_str(), msg->header.seq, msg->header.type);
+                                           name.c_str(), msg->header.seq, msg->header.type);
         ATRACE_NAME(message.c_str());
     }
     return OK;
 }
 
 bool InputChannel::probablyHasInput() const {
-    struct pollfd pfds = {.fd = mFd, .events = POLLIN};
+    struct pollfd pfds = {.fd = fd.get(), .events = POLLIN};
     if (::poll(&pfds, /*nfds=*/1, /*timeout=*/0) <= 0) {
         // This can be a false negative because EINTR and ENOMEM are not handled. The latter should
         // be extremely rare. The EINTR is also unlikely because it happens only when the signal
@@ -538,7 +561,7 @@
     if (timeout < 0ms) {
         LOG(FATAL) << "Timeout cannot be negative, received " << timeout.count();
     }
-    struct pollfd pfds = {.fd = mFd, .events = POLLIN};
+    struct pollfd pfds = {.fd = fd.get(), .events = POLLIN};
     int ret;
     std::chrono::time_point<std::chrono::steady_clock> stopTime =
             std::chrono::steady_clock::now() + timeout;
@@ -551,59 +574,31 @@
 }
 
 std::unique_ptr<InputChannel> InputChannel::dup() const {
-    base::unique_fd newFd(dupFd());
+    base::unique_fd newFd(dupChannelFd(fd.get()));
     return InputChannel::create(getName(), std::move(newFd), getConnectionToken());
 }
 
-void InputChannel::copyTo(InputChannel& outChannel) const {
-    outChannel.mName = getName();
-    outChannel.mFd = dupFd();
-    outChannel.mToken = getConnectionToken();
+void InputChannel::copyTo(android::os::InputChannelCore& outChannel) const {
+    outChannel.name = getName();
+    outChannel.fd.reset(dupChannelFd(fd.get()));
+    outChannel.token = getConnectionToken();
 }
 
-status_t InputChannel::writeToParcel(android::Parcel* parcel) const {
-    if (parcel == nullptr) {
-        ALOGE("%s: Null parcel", __func__);
-        return BAD_VALUE;
-    }
-    return parcel->writeStrongBinder(mToken)
-            ?: parcel->writeUtf8AsUtf16(mName) ?: parcel->writeUniqueFileDescriptor(mFd);
-}
-
-status_t InputChannel::readFromParcel(const android::Parcel* parcel) {
-    if (parcel == nullptr) {
-        ALOGE("%s: Null parcel", __func__);
-        return BAD_VALUE;
-    }
-    mToken = parcel->readStrongBinder();
-    return parcel->readUtf8FromUtf16(&mName) ?: parcel->readUniqueFileDescriptor(&mFd);
+void InputChannel::moveChannel(std::unique_ptr<InputChannel> from,
+                               android::os::InputChannelCore& outChannel) {
+    outChannel.name = from->getName();
+    outChannel.fd = android::os::ParcelFileDescriptor(std::move(from->fd));
+    outChannel.token = from->getConnectionToken();
 }
 
 sp<IBinder> InputChannel::getConnectionToken() const {
-    return mToken;
-}
-
-base::unique_fd InputChannel::dupFd() const {
-    base::unique_fd newFd(::dup(getFd().get()));
-    if (!newFd.ok()) {
-        ALOGE("Could not duplicate fd %i for channel %s: %s", getFd().get(), getName().c_str(),
-              strerror(errno));
-        const bool hitFdLimit = errno == EMFILE || errno == ENFILE;
-        // If this process is out of file descriptors, then throwing that might end up exploding
-        // on the other side of a binder call, which isn't really helpful.
-        // Better to just crash here and hope that the FD leak is slow.
-        // Other failures could be client errors, so we still propagate those back to the caller.
-        LOG_ALWAYS_FATAL_IF(hitFdLimit, "Too many open files, could not duplicate input channel %s",
-                            getName().c_str());
-        return {};
-    }
-    return newFd;
+    return token;
 }
 
 // --- InputPublisher ---
 
 InputPublisher::InputPublisher(const std::shared_ptr<InputChannel>& channel)
-      : mChannel(channel), mInputVerifier(channel->getName()) {}
+      : mChannel(channel), mInputVerifier(mChannel->getName()) {}
 
 InputPublisher::~InputPublisher() {
 }
diff --git a/libs/input/android/os/IInputFlinger.aidl b/libs/input/android/os/IInputFlinger.aidl
index 00ebd4d..c1aacfb 100644
--- a/libs/input/android/os/IInputFlinger.aidl
+++ b/libs/input/android/os/IInputFlinger.aidl
@@ -16,14 +16,13 @@
 
 package android.os;
 
-import android.InputChannel;
+import android.os.InputChannelCore;
 import android.gui.FocusRequest;
-import android.gui.WindowInfo;
 
 /** @hide */
 interface IInputFlinger
 {
-    InputChannel createInputChannel(in @utf8InCpp String name);
+    InputChannelCore createInputChannel(in @utf8InCpp String name);
     void removeInputChannel(in IBinder connectionToken);
     /**
      * Sets focus to the window identified by the token. This must be called
diff --git a/libs/input/android/InputChannel.aidl b/libs/input/android/os/InputChannelCore.aidl
similarity index 72%
rename from libs/input/android/InputChannel.aidl
rename to libs/input/android/os/InputChannelCore.aidl
index c2d1112..888a553 100644
--- a/libs/input/android/InputChannel.aidl
+++ b/libs/input/android/os/InputChannelCore.aidl
@@ -15,6 +15,16 @@
 ** limitations under the License.
 */
 
-package android;
+package android.os;
 
-parcelable InputChannel cpp_header "input/InputTransport.h";
+import android.os.ParcelFileDescriptor;
+
+/**
+ * Input channel struct for sending InputChannel between processes.
+ * @hide
+ */
+parcelable InputChannelCore {
+    @utf8InCpp String name;
+    ParcelFileDescriptor fd;
+    IBinder token;
+}
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 0c850fe..ec7a284 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -26,6 +26,13 @@
   namespace: "input"
   description: "Set to true to enable timer support for the touchpad Gestures library"
   bug: "297192727"
+ }
+
+ flag {
+  name: "enable_input_event_tracing"
+  namespace: "input"
+  description: "Set to true to enable input event tracing, including always-on tracing on non-user builds"
+  bug: "210460522"
 }
 
 flag {
@@ -104,3 +111,10 @@
   description: "Move user-activity poke rate-limiting from PowerManagerService to InputDispatcher."
   bug: "320499729"
 }
+
+flag {
+  name: "input_device_view_behavior_api"
+  namespace: "input"
+  description: "Controls the API to provide InputDevice view behavior."
+  bug: "246946631"
+}
diff --git a/libs/input/rust/input_verifier.rs b/libs/input/rust/input_verifier.rs
index 867af79..b1d7760 100644
--- a/libs/input/rust/input_verifier.rs
+++ b/libs/input/rust/input_verifier.rs
@@ -79,7 +79,7 @@
         logger::init(
             logger::Config::default()
                 .with_tag_on_device("InputVerifier")
-                .with_min_level(log::Level::Trace),
+                .with_max_level(log::LevelFilter::Trace),
         );
         Self {
             name: name.to_owned(),
diff --git a/libs/input/tests/InputChannel_test.cpp b/libs/input/tests/InputChannel_test.cpp
index 650c930..60feb53 100644
--- a/libs/input/tests/InputChannel_test.cpp
+++ b/libs/input/tests/InputChannel_test.cpp
@@ -32,37 +32,31 @@
 
 namespace android {
 
+namespace {
+bool operator==(const InputChannel& left, const InputChannel& right) {
+    struct stat lhs, rhs;
+    if (fstat(left.getFd(), &lhs) != 0) {
+        return false;
+    }
+    if (fstat(right.getFd(), &rhs) != 0) {
+        return false;
+    }
+    // If file descriptors are pointing to same inode they are duplicated fds.
+    return left.getName() == right.getName() &&
+            left.getConnectionToken() == right.getConnectionToken() && lhs.st_ino == rhs.st_ino;
+}
+} // namespace
+
 class InputChannelTest : public testing::Test {
 };
 
+TEST_F(InputChannelTest, ClientAndServerTokensMatch) {
+    std::unique_ptr<InputChannel> serverChannel, clientChannel;
 
-TEST_F(InputChannelTest, ConstructorAndDestructor_TakesOwnershipOfFileDescriptors) {
-    // Our purpose here is to verify that the input channel destructor closes the
-    // file descriptor provided to it.  One easy way is to provide it with one end
-    // of a pipe and to check for EPIPE on the other end after the channel is destroyed.
-    Pipe pipe;
-
-    android::base::unique_fd sendFd(pipe.sendFd);
-
-    std::unique_ptr<InputChannel> inputChannel =
-            InputChannel::create("channel name", std::move(sendFd), new BBinder());
-
-    EXPECT_NE(inputChannel, nullptr) << "channel should be successfully created";
-    EXPECT_STREQ("channel name", inputChannel->getName().c_str())
-            << "channel should have provided name";
-    EXPECT_NE(-1, inputChannel->getFd()) << "channel should have valid fd";
-
-    // InputChannel should be the owner of the file descriptor now
-    ASSERT_FALSE(sendFd.ok());
-}
-
-TEST_F(InputChannelTest, SetAndGetToken) {
-    Pipe pipe;
-    sp<IBinder> token = new BBinder();
-    std::unique_ptr<InputChannel> channel =
-            InputChannel::create("test channel", android::base::unique_fd(pipe.sendFd), token);
-
-    EXPECT_EQ(token, channel->getConnectionToken());
+    status_t result =
+            InputChannel::openInputChannelPair("channel name", serverChannel, clientChannel);
+    ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
+    EXPECT_EQ(serverChannel->getConnectionToken(), clientChannel->getConnectionToken());
 }
 
 TEST_F(InputChannelTest, OpenInputChannelPair_ReturnsAPairOfConnectedChannels) {
@@ -71,8 +65,7 @@
     status_t result = InputChannel::openInputChannelPair("channel name",
             serverChannel, clientChannel);
 
-    ASSERT_EQ(OK, result)
-            << "should have successfully opened a channel pair";
+    ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
 
     // Name
     EXPECT_STREQ("channel name (server)", serverChannel->getName().c_str())
@@ -235,25 +228,6 @@
     }
 }
 
-TEST_F(InputChannelTest, InputChannelParcelAndUnparcel) {
-    std::unique_ptr<InputChannel> serverChannel, clientChannel;
-
-    status_t result =
-            InputChannel::openInputChannelPair("channel parceling", serverChannel, clientChannel);
-
-    ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
-
-    InputChannel chan;
-    Parcel parcel;
-    ASSERT_EQ(OK, serverChannel->writeToParcel(&parcel));
-    parcel.setDataPosition(0);
-    chan.readFromParcel(&parcel);
-
-    EXPECT_EQ(chan == *serverChannel, true)
-            << "inputchannel should be equal after parceling and unparceling.\n"
-            << "name " << chan.getName() << " name " << serverChannel->getName();
-}
-
 TEST_F(InputChannelTest, DuplicateChannelAndAssertEqual) {
     std::unique_ptr<InputChannel> serverChannel, clientChannel;
 
diff --git a/libs/input/tests/InputPublisherAndConsumer_test.cpp b/libs/input/tests/InputPublisherAndConsumer_test.cpp
index 2000335..3543020 100644
--- a/libs/input/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumer_test.cpp
@@ -220,7 +220,6 @@
 
 class InputPublisherAndConsumerTest : public testing::Test {
 protected:
-    std::shared_ptr<InputChannel> mServerChannel, mClientChannel;
     std::unique_ptr<InputPublisher> mPublisher;
     std::unique_ptr<InputConsumer> mConsumer;
     PreallocatedInputEventFactory mEventFactory;
@@ -230,11 +229,9 @@
         status_t result = InputChannel::openInputChannelPair("channel name",
                 serverChannel, clientChannel);
         ASSERT_EQ(OK, result);
-        mServerChannel = std::move(serverChannel);
-        mClientChannel = std::move(clientChannel);
 
-        mPublisher = std::make_unique<InputPublisher>(mServerChannel);
-        mConsumer = std::make_unique<InputConsumer>(mClientChannel);
+        mPublisher = std::make_unique<InputPublisher>(std::move(serverChannel));
+        mConsumer = std::make_unique<InputConsumer>(std::move(clientChannel));
     }
 
     void publishAndConsumeKeyEvent();
@@ -254,11 +251,7 @@
 };
 
 TEST_F(InputPublisherAndConsumerTest, GetChannel_ReturnsTheChannel) {
-    ASSERT_NE(nullptr, mPublisher->getChannel());
-    ASSERT_NE(nullptr, mConsumer->getChannel());
-    EXPECT_EQ(mServerChannel.get(), mPublisher->getChannel().get());
-    EXPECT_EQ(mClientChannel.get(), mConsumer->getChannel().get());
-    ASSERT_EQ(mPublisher->getChannel()->getConnectionToken(),
+    ASSERT_EQ(mPublisher->getChannel().getConnectionToken(),
               mConsumer->getChannel()->getConnectionToken());
 }
 
diff --git a/libs/renderengine/Android.bp b/libs/renderengine/Android.bp
index ba2eb7d..fd45840 100644
--- a/libs/renderengine/Android.bp
+++ b/libs/renderengine/Android.bp
@@ -48,11 +48,19 @@
     static_libs: [
         "libshaders",
         "libtonemap",
+        "libsurfaceflinger_common",
     ],
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
 }
 
+// Needed by FlagManager to access a #define.
+cc_library_static {
+    name: "librenderengine_includes",
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+}
+
 filegroup {
     name: "librenderengine_sources",
     srcs: [
diff --git a/libs/renderengine/benchmark/Android.bp b/libs/renderengine/benchmark/Android.bp
index 55c34cd..87e21c2 100644
--- a/libs/renderengine/benchmark/Android.bp
+++ b/libs/renderengine/benchmark/Android.bp
@@ -37,6 +37,7 @@
     static_libs: [
         "librenderengine",
         "libshaders",
+        "libsurfaceflinger_common",
         "libtonemap",
     ],
     cflags: [
@@ -54,6 +55,7 @@
         "libsync",
         "libui",
         "libutils",
+        "server_configurable_flags",
     ],
 
     data: ["resources/*"],
diff --git a/libs/renderengine/skia/SkiaRenderEngine.cpp b/libs/renderengine/skia/SkiaRenderEngine.cpp
index 330cc66..6e393f0 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaRenderEngine.cpp
@@ -53,6 +53,7 @@
 #include <SkSurface.h>
 #include <SkTileMode.h>
 #include <android-base/stringprintf.h>
+#include <common/FlagManager.h>
 #include <gui/FenceMonitor.h>
 #include <gui/TraceUtils.h>
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
@@ -419,6 +420,9 @@
     mGraphicBufferExternalRefs[buffer->getId()]++;
 
     if (const auto& iter = cache.find(buffer->getId()); iter == cache.end()) {
+        if (FlagManager::getInstance().renderable_buffer_usage()) {
+            isRenderable = buffer->getUsage() & GRALLOC_USAGE_HW_RENDER;
+        }
         std::shared_ptr<AutoBackendTexture::LocalRef> imageTextureRef =
                 std::make_shared<AutoBackendTexture::LocalRef>(grContext,
                                                                buffer->toAHardwareBuffer(),
@@ -760,10 +764,11 @@
             // save a snapshot of the activeSurface to use as input to the blur shaders
             blurInput = activeSurface->makeImageSnapshot();
 
-            // blit the offscreen framebuffer into the destination AHB, but only
-            // if there are blur regions. backgroundBlurRadius blurs the entire
-            // image below, so it can skip this step.
-            if (layer.blurRegions.size()) {
+            // blit the offscreen framebuffer into the destination AHB. This ensures that
+            // even if the blurred image does not cover the screen (for example, during
+            // a rotation animation, or if blur regions are used), the entire screen is
+            // initialized.
+            if (layer.blurRegions.size() || FlagManager::getInstance().restore_blur_step()) {
                 SkPaint paint;
                 paint.setBlendMode(SkBlendMode::kSrc);
                 if (CC_UNLIKELY(mCapture->isCaptureRunning())) {
diff --git a/libs/renderengine/skia/SkiaVkRenderEngine.cpp b/libs/renderengine/skia/SkiaVkRenderEngine.cpp
index 3af85c0..bff12ce 100644
--- a/libs/renderengine/skia/SkiaVkRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaVkRenderEngine.cpp
@@ -34,6 +34,8 @@
 
 #include <cstdint>
 #include <memory>
+#include <sstream>
+#include <string>
 #include <vector>
 
 #include <vulkan/vulkan.h>
@@ -67,6 +69,13 @@
     DestroySemaphoreInfo(VkSemaphore semaphore) : mSemaphore(semaphore) {}
 };
 
+namespace {
+void onVkDeviceFault(void* callbackContext, const std::string& description,
+                     const std::vector<VkDeviceFaultAddressInfoEXT>& addressInfos,
+                     const std::vector<VkDeviceFaultVendorInfoEXT>& vendorInfos,
+                     const std::vector<std::byte>& vendorBinaryData);
+} // anonymous namespace
+
 struct VulkanInterface {
     bool initialized = false;
     VkInstance instance;
@@ -79,6 +88,7 @@
     VkPhysicalDeviceFeatures2* physicalDeviceFeatures2 = nullptr;
     VkPhysicalDeviceSamplerYcbcrConversionFeatures* samplerYcbcrConversionFeatures = nullptr;
     VkPhysicalDeviceProtectedMemoryFeatures* protectedMemoryFeatures = nullptr;
+    VkPhysicalDeviceFaultFeaturesEXT* deviceFaultFeatures = nullptr;
     GrVkGetProc grGetProc;
     bool isProtected;
     bool isRealtimePriority;
@@ -100,6 +110,8 @@
         backendContext.fDeviceFeatures2 = physicalDeviceFeatures2;
         backendContext.fGetProc = grGetProc;
         backendContext.fProtectedContext = isProtected ? GrProtected::kYes : GrProtected::kNo;
+        backendContext.fDeviceLostContext = this; // VulkanInterface is long-lived
+        backendContext.fDeviceLostProc = onVkDeviceFault;
         return backendContext;
     };
 
@@ -178,6 +190,68 @@
     }
 };
 
+namespace {
+void onVkDeviceFault(void* callbackContext, const std::string& description,
+                     const std::vector<VkDeviceFaultAddressInfoEXT>& addressInfos,
+                     const std::vector<VkDeviceFaultVendorInfoEXT>& vendorInfos,
+                     const std::vector<std::byte>& vendorBinaryData) {
+    VulkanInterface* interface = static_cast<VulkanInterface*>(callbackContext);
+    const std::string protectedStr = interface->isProtected ? "protected" : "non-protected";
+    // The final crash string should contain as much differentiating info as possible, up to 1024
+    // bytes. As this final message is constructed, the same information is also dumped to the logs
+    // but in a more verbose format. Building the crash string is unsightly, so the clearer logging
+    // statement is always placed first to give context.
+    ALOGE("VK_ERROR_DEVICE_LOST (%s context): %s", protectedStr.c_str(), description.c_str());
+    std::stringstream crashMsg;
+    crashMsg << "VK_ERROR_DEVICE_LOST (" << protectedStr;
+
+    if (!addressInfos.empty()) {
+        ALOGE("%zu VkDeviceFaultAddressInfoEXT:", addressInfos.size());
+        crashMsg << ", " << addressInfos.size() << " address info (";
+        for (VkDeviceFaultAddressInfoEXT addressInfo : addressInfos) {
+            ALOGE(" addressType:       %d", (int)addressInfo.addressType);
+            ALOGE("  reportedAddress:  %" PRIu64, addressInfo.reportedAddress);
+            ALOGE("  addressPrecision: %" PRIu64, addressInfo.addressPrecision);
+            crashMsg << addressInfo.addressType << ":"
+                     << addressInfo.reportedAddress << ":"
+                     << addressInfo.addressPrecision << ", ";
+        }
+        crashMsg.seekp(-2, crashMsg.cur); // Move back to overwrite trailing ", "
+        crashMsg << ")";
+    }
+
+    if (!vendorInfos.empty()) {
+        ALOGE("%zu VkDeviceFaultVendorInfoEXT:", vendorInfos.size());
+        crashMsg << ", " << vendorInfos.size() << " vendor info (";
+        for (VkDeviceFaultVendorInfoEXT vendorInfo : vendorInfos) {
+            ALOGE(" description:      %s", vendorInfo.description);
+            ALOGE("  vendorFaultCode: %" PRIu64, vendorInfo.vendorFaultCode);
+            ALOGE("  vendorFaultData: %" PRIu64, vendorInfo.vendorFaultData);
+            // Omit descriptions for individual vendor info structs in the crash string, as the
+            // fault code and fault data fields should be enough for clustering, and the verbosity
+            // isn't worth it. Additionally, vendors may just set the general description field of
+            // the overall fault to the description of the first element in this list, and that
+            // overall description will be placed at the end of the crash string.
+            crashMsg << vendorInfo.vendorFaultCode << ":"
+                     << vendorInfo.vendorFaultData << ", ";
+        }
+        crashMsg.seekp(-2, crashMsg.cur); // Move back to overwrite trailing ", "
+        crashMsg << ")";
+    }
+
+    if (!vendorBinaryData.empty()) {
+        // TODO: b/322830575 - Log in base64, or dump directly to a file that gets put in bugreports
+        ALOGE("%zu bytes of vendor-specific binary data (please notify Android's Core Graphics"
+              " Stack team if you observe this message).",
+              vendorBinaryData.size());
+        crashMsg << ", " << vendorBinaryData.size() << " bytes binary";
+    }
+
+    crashMsg << "): " << description;
+    LOG_ALWAYS_FATAL("%s", crashMsg.str().c_str());
+};
+} // anonymous namespace
+
 static GrVkGetProc sGetProc = [](const char* proc_name, VkInstance instance, VkDevice device) {
     if (device != VK_NULL_HANDLE) {
         return vkGetDeviceProcAddr(device, proc_name);
@@ -429,6 +503,14 @@
         tailPnext = &interface.protectedMemoryFeatures->pNext;
     }
 
+    if (interface.grExtensions.hasExtension(VK_EXT_DEVICE_FAULT_EXTENSION_NAME, 1)) {
+        interface.deviceFaultFeatures = new VkPhysicalDeviceFaultFeaturesEXT;
+        interface.deviceFaultFeatures->sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FAULT_FEATURES_EXT;
+        interface.deviceFaultFeatures->pNext = nullptr;
+        *tailPnext = interface.deviceFaultFeatures;
+        tailPnext = &interface.deviceFaultFeatures->pNext;
+    }
+
     vkGetPhysicalDeviceFeatures2(physicalDevice, interface.physicalDeviceFeatures2);
     // Looks like this would slow things down and we can't depend on it on all platforms
     interface.physicalDeviceFeatures2->features.robustBufferAccess = VK_FALSE;
@@ -545,6 +627,10 @@
         delete interface->physicalDeviceFeatures2;
     }
 
+    if (interface->deviceFaultFeatures) {
+        delete interface->deviceFaultFeatures;
+    }
+
     interface->samplerYcbcrConversionFeatures = nullptr;
     interface->physicalDeviceFeatures2 = nullptr;
     interface->protectedMemoryFeatures = nullptr;
diff --git a/libs/renderengine/tests/Android.bp b/libs/renderengine/tests/Android.bp
index 50e166d..473e1d4 100644
--- a/libs/renderengine/tests/Android.bp
+++ b/libs/renderengine/tests/Android.bp
@@ -44,6 +44,7 @@
         "librenderengine_mocks",
         "libshaders",
         "libtonemap",
+        "libsurfaceflinger_common",
     ],
     header_libs: [
         "libtonemap_headers",
@@ -61,5 +62,6 @@
         "libsync",
         "libui",
         "libutils",
+        "server_configurable_flags",
     ],
 }
diff --git a/libs/sensor/libsensor_flags.aconfig b/libs/sensor/libsensor_flags.aconfig
index a8b38e9..ef4d737 100644
--- a/libs/sensor/libsensor_flags.aconfig
+++ b/libs/sensor/libsensor_flags.aconfig
@@ -2,7 +2,7 @@
 
 flag {
   name: "sensormanager_ping_binder"
-  namespace: "libsensors"
+  namespace: "sensors"
   description: "Whether to pingBinder on SensorManager init"
   bug: "322228259"
   is_fixed_read_only: true
diff --git a/opengl/tools/glgen/gen b/opengl/tools/glgen/gen
index 7fd9c3a..f73fa5d 100755
--- a/opengl/tools/glgen/gen
+++ b/opengl/tools/glgen/gen
@@ -22,8 +22,10 @@
 
 mkdir -p out/javax/microedition/khronos/opengles
 mkdir -p out/com/google/android/gles_jni
+mkdir -p out/android/annotation
 mkdir -p out/android/app
 mkdir -p out/android/graphics
+mkdir -p out/android/hardware
 mkdir -p out/android/view
 mkdir -p out/android/opengl
 mkdir -p out/android/content
@@ -34,18 +36,20 @@
 echo "package android.graphics;" > out/android/graphics/Canvas.java
 echo "public interface Canvas {}" >> out/android/graphics/Canvas.java
 
+echo "package android.annotation; public @interface NonNull {}" > out/android/annotation/NonNull.java
 echo "package android.app; import android.content.pm.IPackageManager; public class AppGlobals { public static IPackageManager getPackageManager() { return null;} }" > out/android/app/AppGlobals.java
 # echo "package android.content; import android.content.pm.PackageManager; public interface Context { public PackageManager getPackageManager(); }" > out/android/content/Context.java
 echo "package android.content.pm; public class ApplicationInfo {public int targetSdkVersion;}" > out/android/content/pm/ApplicationInfo.java
 echo "package android.content.pm; public interface IPackageManager {ApplicationInfo getApplicationInfo(java.lang.String packageName, int flags, java.lang.String userId) throws android.os.RemoteException;}" > out/android/content/pm/IPackageManager.java
-echo "package android.os; public class Build {public static class VERSION_CODES { public static final int CUPCAKE = 3;};	}" > out/android/os/Build.java
+echo "package android.hardware; import android.os.ParcelFileDescriptor; public class SyncFence { public static SyncFence create(ParcelFileDescriptor w) { return null; } public static SyncFence createEmpty() { return null; } }" > out/android/hardware/SyncFence.java
+echo "package android.os; public class Build {public static class VERSION_CODES { public static final int CUPCAKE = 0; public static final int R = 0; }; }" > out/android/os/Build.java
+echo "package android.os; public class ParcelFileDescriptor { public static ParcelFileDescriptor adoptFd(int fd) { return null; } }" > out/android/os/ParcelFileDescriptor.java
 echo "package android.os; public class UserHandle {public static String myUserId() { return \"\"; } }" > out/android/os/UserHandle.java
 echo "package android.os; public class RemoteException extends Exception {}" > out/android/os/RemoteException.java
-echo "package android.util; public class Log {public static void w(String a, String b) {} public static void e(String a, String b) {}}" > out/android/util/Log.java
+echo "package android.util; public class Log {public static void d(String a, String b) {} public static void w(String a, String b) {} public static void e(String a, String b) {}}" > out/android/util/Log.java
 
 echo "package android.opengl; public abstract class EGLObjectHandle { public int getHandle() { return 0; } }" > out/android/opengl/EGLObjectHandle.java
 
-
 echo "package android.graphics;" > out/android/graphics/SurfaceTexture.java
 echo "public interface SurfaceTexture {}" >> out/android/graphics/SurfaceTexture.java
 echo "package android.view;" > out/android/view/SurfaceView.java
diff --git a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
index 951ecff..695b571 100644
--- a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
+++ b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
@@ -20,6 +20,7 @@
 
 import android.compat.annotation.UnsupportedAppUsage;
 import android.graphics.SurfaceTexture;
+import android.os.Build;
 import android.view.Surface;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
diff --git a/opengl/tools/glgen/stubs/egl/EGL14cHeader.cpp b/opengl/tools/glgen/stubs/egl/EGL14cHeader.cpp
index b2ea041..ea55179 100644
--- a/opengl/tools/glgen/stubs/egl/EGL14cHeader.cpp
+++ b/opengl/tools/glgen/stubs/egl/EGL14cHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include "jni.h"
diff --git a/opengl/tools/glgen/stubs/egl/EGL15cHeader.cpp b/opengl/tools/glgen/stubs/egl/EGL15cHeader.cpp
index 6dffac5..8e452fb 100644
--- a/opengl/tools/glgen/stubs/egl/EGL15cHeader.cpp
+++ b/opengl/tools/glgen/stubs/egl/EGL15cHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include "jni.h"
diff --git a/opengl/tools/glgen/stubs/egl/EGLExtHeader.java-if b/opengl/tools/glgen/stubs/egl/EGLExtHeader.java-if
index 523bc57..75e1704 100644
--- a/opengl/tools/glgen/stubs/egl/EGLExtHeader.java-if
+++ b/opengl/tools/glgen/stubs/egl/EGLExtHeader.java-if
@@ -18,6 +18,11 @@
 
 package android.opengl;
 
+import android.annotation.NonNull;
+import android.hardware.SyncFence;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
 /**
  * EGL Extensions
  */
@@ -30,8 +35,44 @@
     public static final int EGL_OPENGL_ES3_BIT_KHR          = 0x0040;
     public static final int EGL_RECORDABLE_ANDROID          = 0x3142;
 
+    // EGL_ANDROID_native_fence_sync
+    public static final int EGL_SYNC_NATIVE_FENCE_ANDROID     = 0x3144;
+    public static final int EGL_SYNC_NATIVE_FENCE_FD_ANDROID  = 0x3145;
+    public static final int EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID = 0x3146;
+    public static final int EGL_NO_NATIVE_FENCE_FD_ANDROID    = -1;
+
     native private static void _nativeClassInit();
     static {
         _nativeClassInit();
     }
 
+    /**
+     * Retrieves the SyncFence for an EGLSync created with EGL_SYNC_NATIVE_FENCE_ANDROID
+     *
+     * See <a href="https://www.khronos.org/registry/EGL/extensions/ANDROID/EGL_ANDROID_native_fence_sync.txt">
+     *     EGL_ANDROID_native_fence_sync</a> extension for more details
+     * @param display The EGLDisplay connection
+     * @param sync The EGLSync to fetch the SyncFence from
+     * @return A SyncFence representing the native fence.
+     *       * If <sync> is not a valid sync object for <display>,
+     *         an {@link SyncFence#isValid() invalid} SyncFence is returned and an EGL_BAD_PARAMETER
+     *         error is generated.
+     *       * If the EGL_SYNC_NATIVE_FENCE_FD_ANDROID attribute of <sync> is
+     *         EGL_NO_NATIVE_FENCE_FD_ANDROID, an {@link SyncFence#isValid() invalid} SyncFence is
+     *         returned and an EGL_BAD_PARAMETER error is generated.
+     *       * If <display> does not match the display passed to eglCreateSync
+     *         when <sync> was created, the behaviour is undefined.
+     */
+    public static @NonNull SyncFence eglDupNativeFenceFDANDROID(@NonNull EGLDisplay display,
+            @NonNull EGLSync sync) {
+        int fd = eglDupNativeFenceFDANDROIDImpl(display, sync);
+        Log.d("EGL", "eglDupNativeFence returned " + fd);
+        if (fd >= 0) {
+            return SyncFence.create(ParcelFileDescriptor.adoptFd(fd));
+        } else {
+            return SyncFence.createEmpty();
+        }
+    }
+
+    private static native int eglDupNativeFenceFDANDROIDImpl(EGLDisplay display, EGLSync sync);
+
diff --git a/opengl/tools/glgen/stubs/egl/EGLExtcHeader.cpp b/opengl/tools/glgen/stubs/egl/EGLExtcHeader.cpp
index be8b3e3..f1f0ac5 100644
--- a/opengl/tools/glgen/stubs/egl/EGLExtcHeader.cpp
+++ b/opengl/tools/glgen/stubs/egl/EGLExtcHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include "jni.h"
@@ -37,25 +38,12 @@
 #include <ui/ANativeObjectBase.h>
 
 static jclass egldisplayClass;
-static jclass eglcontextClass;
 static jclass eglsurfaceClass;
-static jclass eglconfigClass;
+static jclass eglsyncClass;
 
 static jmethodID egldisplayGetHandleID;
-static jmethodID eglcontextGetHandleID;
 static jmethodID eglsurfaceGetHandleID;
-static jmethodID eglconfigGetHandleID;
-
-static jmethodID egldisplayConstructor;
-static jmethodID eglcontextConstructor;
-static jmethodID eglsurfaceConstructor;
-static jmethodID eglconfigConstructor;
-
-static jobject eglNoContextObject;
-static jobject eglNoDisplayObject;
-static jobject eglNoSurfaceObject;
-
-
+static jmethodID eglsyncGetHandleID;
 
 /* Cache method IDs each time the class is loaded. */
 
@@ -64,37 +52,14 @@
 {
     jclass egldisplayClassLocal = _env->FindClass("android/opengl/EGLDisplay");
     egldisplayClass = (jclass) _env->NewGlobalRef(egldisplayClassLocal);
-    jclass eglcontextClassLocal = _env->FindClass("android/opengl/EGLContext");
-    eglcontextClass = (jclass) _env->NewGlobalRef(eglcontextClassLocal);
     jclass eglsurfaceClassLocal = _env->FindClass("android/opengl/EGLSurface");
     eglsurfaceClass = (jclass) _env->NewGlobalRef(eglsurfaceClassLocal);
-    jclass eglconfigClassLocal = _env->FindClass("android/opengl/EGLConfig");
-    eglconfigClass = (jclass) _env->NewGlobalRef(eglconfigClassLocal);
+    jclass eglsyncClassLocal = _env->FindClass("android/opengl/EGLSync");
+    eglsyncClass = (jclass) _env->NewGlobalRef(eglsyncClassLocal);
 
     egldisplayGetHandleID = _env->GetMethodID(egldisplayClass, "getNativeHandle", "()J");
-    eglcontextGetHandleID = _env->GetMethodID(eglcontextClass, "getNativeHandle", "()J");
     eglsurfaceGetHandleID = _env->GetMethodID(eglsurfaceClass, "getNativeHandle", "()J");
-    eglconfigGetHandleID = _env->GetMethodID(eglconfigClass, "getNativeHandle", "()J");
-
-
-    egldisplayConstructor = _env->GetMethodID(egldisplayClass, "<init>", "(J)V");
-    eglcontextConstructor = _env->GetMethodID(eglcontextClass, "<init>", "(J)V");
-    eglsurfaceConstructor = _env->GetMethodID(eglsurfaceClass, "<init>", "(J)V");
-    eglconfigConstructor = _env->GetMethodID(eglconfigClass, "<init>", "(J)V");
-
-
-    jclass eglClass = _env->FindClass("android/opengl/EGL14");
-    jfieldID noContextFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_CONTEXT", "Landroid/opengl/EGLContext;");
-    jobject localeglNoContextObject = _env->GetStaticObjectField(eglClass, noContextFieldID);
-    eglNoContextObject = _env->NewGlobalRef(localeglNoContextObject);
-
-    jfieldID noDisplayFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_DISPLAY", "Landroid/opengl/EGLDisplay;");
-    jobject localeglNoDisplayObject = _env->GetStaticObjectField(eglClass, noDisplayFieldID);
-    eglNoDisplayObject = _env->NewGlobalRef(localeglNoDisplayObject);
-
-    jfieldID noSurfaceFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_SURFACE", "Landroid/opengl/EGLSurface;");
-    jobject localeglNoSurfaceObject = _env->GetStaticObjectField(eglClass, noSurfaceFieldID);
-    eglNoSurfaceObject = _env->NewGlobalRef(localeglNoSurfaceObject);
+    eglsyncGetHandleID = _env->GetMethodID(eglsyncClass, "getNativeHandle", "()J");
 }
 
 static void *
@@ -108,24 +73,12 @@
     return reinterpret_cast<void*>(_env->CallLongMethod(obj, mid));
 }
 
-static jobject
-toEGLHandle(JNIEnv *_env, jclass cls, jmethodID con, void * handle) {
-    if (cls == eglcontextClass &&
-       (EGLContext)handle == EGL_NO_CONTEXT) {
-           return eglNoContextObject;
-    }
+// TODO: this should be generated from the .spec file, but needs to be renamed and made private
+static jint android_eglDupNativeFenceFDANDROID(JNIEnv *env, jobject, jobject dpy, jobject sync) {
+    EGLDisplay dpy_native = (EGLDisplay)fromEGLHandle(env, egldisplayGetHandleID, dpy);
+    EGLSync sync_native = (EGLSync)fromEGLHandle(env, eglsyncGetHandleID, sync);
 
-    if (cls == egldisplayClass &&
-       (EGLDisplay)handle == EGL_NO_DISPLAY) {
-           return eglNoDisplayObject;
-    }
-
-    if (cls == eglsurfaceClass &&
-       (EGLSurface)handle == EGL_NO_SURFACE) {
-           return eglNoSurfaceObject;
-    }
-
-    return _env->NewObject(cls, con, reinterpret_cast<jlong>(handle));
+    return eglDupNativeFenceFDANDROID(dpy_native, sync_native);
 }
 
 // --------------------------------------------------------------------------
diff --git a/opengl/tools/glgen/stubs/egl/eglGetDisplay.java b/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
index 85f743d..78b0819 100755
--- a/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
+++ b/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
@@ -7,7 +7,7 @@
     /**
      * {@hide}
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public static native EGLDisplay eglGetDisplay(
         long display_id
     );
diff --git a/opengl/tools/glgen/stubs/gles11/GLES10ExtcHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES10ExtcHeader.cpp
index dd17ca4..1fa9275 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES10ExtcHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES10ExtcHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES/gl.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES10cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES10cHeader.cpp
index dd17ca4..1fa9275 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES10cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES10cHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES/gl.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES11ExtcHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES11ExtcHeader.cpp
index dd17ca4..1fa9275 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES11ExtcHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES11ExtcHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES/gl.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES11cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES11cHeader.cpp
index dd17ca4..1fa9275 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES11cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES11cHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES/gl.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES20cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES20cHeader.cpp
index b2bbdf6..4004a7d 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES20cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES20cHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES2/gl2.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES30cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES30cHeader.cpp
index b039bc9..c5bdf32 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES30cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES30cHeader.cpp
@@ -18,6 +18,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES3/gl3.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES31ExtcHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES31ExtcHeader.cpp
index dd00e92..2260a80 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES31ExtcHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES31ExtcHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <GLES3/gl31.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES31cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES31cHeader.cpp
index 88e00be..130612d 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES31cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES31cHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <stdint.h>
diff --git a/opengl/tools/glgen/stubs/gles11/GLES32cHeader.cpp b/opengl/tools/glgen/stubs/gles11/GLES32cHeader.cpp
index 3e7ec8b..5446fc2 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES32cHeader.cpp
+++ b/opengl/tools/glgen/stubs/gles11/GLES32cHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include <stdint.h>
diff --git a/opengl/tools/glgen/stubs/jsr239/GLCHeader.cpp b/opengl/tools/glgen/stubs/jsr239/GLCHeader.cpp
index 9cab1d6..c3534bf 100644
--- a/opengl/tools/glgen/stubs/jsr239/GLCHeader.cpp
+++ b/opengl/tools/glgen/stubs/jsr239/GLCHeader.cpp
@@ -17,6 +17,7 @@
 // This source file is automatically generated
 
 #pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wunused-function"
 
 #include "jni.h"
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index a7955cf..d244b1a 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -14,6 +14,7 @@
 
 // Default flags to be used throughout all libraries in inputflinger.
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
@@ -110,6 +111,7 @@
     ],
     static_libs: [
         "libattestation",
+        "libperfetto_client_experimental",
         "libpalmrejection",
         "libui-types",
     ],
diff --git a/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index 4863513..ae066c0 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp
@@ -260,13 +260,16 @@
 }
 
 // Used by tests only.
-binder::Status InputManager::createInputChannel(const std::string& name, InputChannel* outChannel) {
+binder::Status InputManager::createInputChannel(const std::string& name,
+                                                android::os::InputChannelCore* outChannel) {
     IPCThreadState* ipc = IPCThreadState::self();
-    const int uid = ipc->getCallingUid();
+    const uid_t uid = ipc->getCallingUid();
     if (uid != AID_SHELL && uid != AID_ROOT) {
-        ALOGE("Invalid attempt to register input channel over IPC"
-                "from non shell/root entity (PID: %d)", ipc->getCallingPid());
-        return binder::Status::ok();
+        LOG(ERROR) << __func__ << " can only be called by SHELL or ROOT users, "
+                   << "but was called from UID " << uid;
+        return binder::Status::
+                fromExceptionCode(EX_SECURITY,
+                                  "This uid is not allowed to call createInputChannel");
     }
 
     base::Result<std::unique_ptr<InputChannel>> channel = mDispatcher->createInputChannel(name);
@@ -274,7 +277,7 @@
         return binder::Status::fromExceptionCode(exceptionCodeFromStatusT(channel.error().code()),
                                                  channel.error().message().c_str());
     }
-    (*channel)->copyTo(*outChannel);
+    InputChannel::moveChannel(std::move(*channel), *outChannel);
     return binder::Status::ok();
 }
 
diff --git a/services/inputflinger/InputManager.h b/services/inputflinger/InputManager.h
index df944ef..c479aaf 100644
--- a/services/inputflinger/InputManager.h
+++ b/services/inputflinger/InputManager.h
@@ -136,7 +136,8 @@
     void dump(std::string& dump) override;
 
     status_t dump(int fd, const Vector<String16>& args) override;
-    binder::Status createInputChannel(const std::string& name, InputChannel* outChannel) override;
+    binder::Status createInputChannel(const std::string& name,
+                                      android::os::InputChannelCore* outChannel) override;
     binder::Status removeInputChannel(const sp<IBinder>& connectionToken) override;
     binder::Status setFocusedWindow(const gui::FocusRequest&) override;
 
diff --git a/services/inputflinger/benchmarks/Android.bp b/services/inputflinger/benchmarks/Android.bp
index e200f8b..2d12574 100644
--- a/services/inputflinger/benchmarks/Android.bp
+++ b/services/inputflinger/benchmarks/Android.bp
@@ -1,4 +1,5 @@
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
diff --git a/services/inputflinger/dispatcher/Android.bp b/services/inputflinger/dispatcher/Android.bp
index c7bacee..6d71acc 100644
--- a/services/inputflinger/dispatcher/Android.bp
+++ b/services/inputflinger/dispatcher/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
@@ -49,6 +50,7 @@
         "Monitor.cpp",
         "TouchedWindow.cpp",
         "TouchState.cpp",
+        "trace/*.cpp",
     ],
 }
 
@@ -72,6 +74,7 @@
     static_libs: [
         "libattestation",
         "libgui_window_info_static",
+        "libperfetto_client_experimental",
     ],
     target: {
         android: {
diff --git a/services/inputflinger/dispatcher/Connection.cpp b/services/inputflinger/dispatcher/Connection.cpp
index f304712..9dee66f 100644
--- a/services/inputflinger/dispatcher/Connection.cpp
+++ b/services/inputflinger/dispatcher/Connection.cpp
@@ -20,22 +20,15 @@
 
 namespace android::inputdispatcher {
 
-Connection::Connection(const std::shared_ptr<InputChannel>& inputChannel, bool monitor,
+Connection::Connection(std::unique_ptr<InputChannel> inputChannel, bool monitor,
                        const IdGenerator& idGenerator)
       : status(Status::NORMAL),
-        inputChannel(inputChannel),
         monitor(monitor),
-        inputPublisher(inputChannel),
+        inputPublisher(std::move(inputChannel)),
         inputState(idGenerator) {}
 
-const std::string Connection::getWindowName() const {
-    if (inputChannel != nullptr) {
-        return inputChannel->getName();
-    }
-    if (monitor) {
-        return "monitor";
-    }
-    return "?";
-}
+sp<IBinder> Connection::getToken() const {
+    return inputPublisher.getChannel().getConnectionToken();
+};
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/Connection.h b/services/inputflinger/dispatcher/Connection.h
index c17baea..a834a8c 100644
--- a/services/inputflinger/dispatcher/Connection.h
+++ b/services/inputflinger/dispatcher/Connection.h
@@ -42,7 +42,6 @@
     };
 
     Status status;
-    std::shared_ptr<InputChannel> inputChannel; // never null
     bool monitor;
     InputPublisher inputPublisher;
     InputState inputState;
@@ -59,12 +58,14 @@
     // yet received a "finished" response from the application.
     std::deque<std::unique_ptr<DispatchEntry>> waitQueue;
 
-    Connection(const std::shared_ptr<InputChannel>& inputChannel, bool monitor,
+    Connection(std::unique_ptr<InputChannel> inputChannel, bool monitor,
                const IdGenerator& idGenerator);
 
-    inline const std::string getInputChannelName() const { return inputChannel->getName(); }
+    inline const std::string getInputChannelName() const {
+        return inputPublisher.getChannel().getName();
+    }
 
-    const std::string getWindowName() const;
+    sp<IBinder> getToken() const;
 };
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index 2153d8a..264dc03 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -282,9 +282,10 @@
 volatile int32_t DispatchEntry::sNextSeqAtomic;
 
 DispatchEntry::DispatchEntry(std::shared_ptr<const EventEntry> eventEntry,
-                             ftl::Flags<InputTarget::Flags> targetFlags,
+                             ftl::Flags<InputTargetFlags> targetFlags,
                              const ui::Transform& transform, const ui::Transform& rawTransform,
-                             float globalScaleFactor)
+                             float globalScaleFactor, gui::Uid targetUid, int64_t vsyncId,
+                             std::optional<int32_t> windowId)
       : seq(nextSeq()),
         eventEntry(std::move(eventEntry)),
         targetFlags(targetFlags),
@@ -292,7 +293,10 @@
         rawTransform(rawTransform),
         globalScaleFactor(globalScaleFactor),
         deliveryTime(0),
-        resolvedFlags(0) {
+        resolvedFlags(0),
+        targetUid(targetUid),
+        vsyncId(vsyncId),
+        windowId(windowId) {
     switch (this->eventEntry->type) {
         case EventEntry::Type::KEY: {
             const KeyEntry& keyEntry = static_cast<const KeyEntry&>(*this->eventEntry);
diff --git a/services/inputflinger/dispatcher/Entry.h b/services/inputflinger/dispatcher/Entry.h
index a915805..1298b5d 100644
--- a/services/inputflinger/dispatcher/Entry.h
+++ b/services/inputflinger/dispatcher/Entry.h
@@ -17,7 +17,7 @@
 #pragma once
 
 #include "InjectionState.h"
-#include "InputTarget.h"
+#include "InputTargetFlags.h"
 #include "trace/EventTrackerInterface.h"
 
 #include <gui/InputApplication.h>
@@ -215,7 +215,7 @@
     const uint32_t seq; // unique sequence number, never 0
 
     std::shared_ptr<const EventEntry> eventEntry; // the event to dispatch
-    const ftl::Flags<InputTarget::Flags> targetFlags;
+    const ftl::Flags<InputTargetFlags> targetFlags;
     ui::Transform transform;
     ui::Transform rawTransform;
     float globalScaleFactor;
@@ -227,17 +227,27 @@
 
     int32_t resolvedFlags;
 
+    // Information about the dispatch window used for tracing. We avoid holding a window handle
+    // here because information in a window handle may be dynamically updated within the lifespan
+    // of this dispatch entry.
+    gui::Uid targetUid;
+    int64_t vsyncId;
+    // The window that this event is targeting. The only case when this windowId is not populated
+    // is when dispatching an event to a global monitor.
+    std::optional<int32_t> windowId;
+
     DispatchEntry(std::shared_ptr<const EventEntry> eventEntry,
-                  ftl::Flags<InputTarget::Flags> targetFlags, const ui::Transform& transform,
-                  const ui::Transform& rawTransform, float globalScaleFactor);
+                  ftl::Flags<InputTargetFlags> targetFlags, const ui::Transform& transform,
+                  const ui::Transform& rawTransform, float globalScaleFactor, gui::Uid targetUid,
+                  int64_t vsyncId, std::optional<int32_t> windowId);
     DispatchEntry(const DispatchEntry&) = delete;
     DispatchEntry& operator=(const DispatchEntry&) = delete;
 
     inline bool hasForegroundTarget() const {
-        return targetFlags.test(InputTarget::Flags::FOREGROUND);
+        return targetFlags.test(InputTargetFlags::FOREGROUND);
     }
 
-    inline bool isSplit() const { return targetFlags.test(InputTarget::Flags::SPLIT); }
+    inline bool isSplit() const { return targetFlags.test(InputTargetFlags::SPLIT); }
 
 private:
     static volatile int32_t sNextSeqAtomic;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index d50e2b8..6719006 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -35,6 +35,7 @@
 #include <input/PrintTools.h>
 #include <input/TraceTools.h>
 #include <openssl/mem.h>
+#include <private/android_filesystem_config.h>
 #include <unistd.h>
 #include <utils/Trace.h>
 
@@ -51,6 +52,8 @@
 #include "Connection.h"
 #include "DebugConfig.h"
 #include "InputDispatcher.h"
+#include "trace/InputTracer.h"
+#include "trace/InputTracingPerfettoBackend.h"
 
 #define INDENT "  "
 #define INDENT2 "    "
@@ -75,6 +78,14 @@
 
 namespace {
 
+// Input tracing is only available on debuggable builds (userdebug and eng) when the feature
+// flag is enabled. When the flag is changed, tracing will only be available after reboot.
+bool isInputTracingEnabled() {
+    static const std::string buildType = base::GetProperty("ro.build.type", "user");
+    static const bool isUserdebugOrEng = buildType == "userdebug" || buildType == "eng";
+    return input_flags::enable_input_event_tracing() && isUserdebugOrEng;
+}
+
 template <class Entry>
 void ensureEventTraced(const Entry& entry) {
     if (!entry.traceTracker) {
@@ -110,11 +121,6 @@
 // Log a warning when an interception call takes longer than this to process.
 constexpr std::chrono::milliseconds SLOW_INTERCEPTION_THRESHOLD = 50ms;
 
-// Additional key latency in case a connection is still processing some motion events.
-// This will help with the case when a user touched a button that opens a new window,
-// and gives us the chance to dispatch the key to this new window.
-constexpr std::chrono::nanoseconds KEY_WAITING_FOR_EVENTS_TIMEOUT = 500ms;
-
 // Number of recent events to keep for debugging purposes.
 constexpr size_t RECENT_QUEUE_MAX_SIZE = 10;
 
@@ -359,14 +365,22 @@
     return i;
 }
 
-std::unique_ptr<DispatchEntry> createDispatchEntry(
-        const InputTarget& inputTarget, std::shared_ptr<const EventEntry> eventEntry,
-        ftl::Flags<InputTarget::Flags> inputTargetFlags) {
+std::unique_ptr<DispatchEntry> createDispatchEntry(const InputTarget& inputTarget,
+                                                   std::shared_ptr<const EventEntry> eventEntry,
+                                                   ftl::Flags<InputTarget::Flags> inputTargetFlags,
+                                                   int64_t vsyncId) {
+    const sp<WindowInfoHandle> win = inputTarget.windowHandle;
+    const std::optional<int32_t> windowId =
+            win ? std::make_optional(win->getInfo()->id) : std::nullopt;
+    // Assume the only targets that are not associated with a window are global monitors, and use
+    // the system UID for global monitors for tracing purposes.
+    const gui::Uid uid = win ? win->getInfo()->ownerUid : gui::Uid(AID_SYSTEM);
     if (inputTarget.useDefaultPointerTransform()) {
         const ui::Transform& transform = inputTarget.getDefaultPointerTransform();
         return std::make_unique<DispatchEntry>(eventEntry, inputTargetFlags, transform,
                                                inputTarget.displayTransform,
-                                               inputTarget.globalScaleFactor);
+                                               inputTarget.globalScaleFactor, uid, vsyncId,
+                                               windowId);
     }
 
     ALOG_ASSERT(eventEntry->type == EventEntry::Type::MOTION);
@@ -413,19 +427,10 @@
     std::unique_ptr<DispatchEntry> dispatchEntry =
             std::make_unique<DispatchEntry>(std::move(combinedMotionEntry), inputTargetFlags,
                                             firstPointerTransform, inputTarget.displayTransform,
-                                            inputTarget.globalScaleFactor);
+                                            inputTarget.globalScaleFactor, uid, vsyncId, windowId);
     return dispatchEntry;
 }
 
-status_t openInputChannelPair(const std::string& name, std::shared_ptr<InputChannel>& serverChannel,
-                              std::unique_ptr<InputChannel>& clientChannel) {
-    std::unique_ptr<InputChannel> uniqueServerChannel;
-    status_t result = InputChannel::openInputChannelPair(name, uniqueServerChannel, clientChannel);
-
-    serverChannel = std::move(uniqueServerChannel);
-    return result;
-}
-
 template <typename T>
 bool sharedPointersEqual(const std::shared_ptr<T>& lhs, const std::shared_ptr<T>& rhs) {
     if (lhs == nullptr && rhs == nullptr) {
@@ -709,7 +714,7 @@
             // TODO(b/282025641): simplify this code once InputTargets are being identified
             // separately from TouchedWindows.
             std::erase_if(targets, [&](const InputTarget& target) {
-                return target.inputChannel->getConnectionToken() == window.windowHandle->getToken();
+                return target.connection->getToken() == window.windowHandle->getToken();
             });
             return true;
         }
@@ -799,12 +804,28 @@
     }
 }
 
+std::pair<bool /*cancelPointers*/, bool /*cancelNonPointers*/> expandCancellationMode(
+        CancelationOptions::Mode mode) {
+    switch (mode) {
+        case CancelationOptions::Mode::CANCEL_ALL_EVENTS:
+            return {true, true};
+        case CancelationOptions::Mode::CANCEL_POINTER_EVENTS:
+            return {true, false};
+        case CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS:
+            return {false, true};
+        case CancelationOptions::Mode::CANCEL_FALLBACK_EVENTS:
+            return {false, true};
+    }
+}
+
 } // namespace
 
 // --- InputDispatcher ---
 
 InputDispatcher::InputDispatcher(InputDispatcherPolicyInterface& policy)
-      : InputDispatcher(policy, nullptr) {}
+      : InputDispatcher(policy,
+                        isInputTracingEnabled() ? std::make_unique<trace::impl::PerfettoBackend>()
+                                                : nullptr) {}
 
 InputDispatcher::InputDispatcher(InputDispatcherPolicyInterface& policy,
                                  std::unique_ptr<trace::InputTracingBackendInterface> traceBackend)
@@ -833,7 +854,7 @@
     mKeyRepeatState.lastKeyEntry = nullptr;
 
     if (traceBackend) {
-        // TODO: Create input tracer instance.
+        mTracer = std::make_unique<trace::impl::InputTracer>(std::move(traceBackend));
     }
 
     mLastUserActivityTimes.fill(0);
@@ -849,7 +870,7 @@
 
     while (!mConnectionsByToken.empty()) {
         std::shared_ptr<Connection> connection = mConnectionsByToken.begin()->second;
-        removeInputChannelLocked(connection->inputChannel->getConnectionToken(), /*notify=*/false);
+        removeInputChannelLocked(connection->getToken(), /*notify=*/false);
     }
 }
 
@@ -969,7 +990,7 @@
     }
     connection->responsive = false;
     // Stop waking up for this unresponsive connection
-    mAnrTracker.eraseToken(connection->inputChannel->getConnectionToken());
+    mAnrTracker.eraseToken(connection->getToken());
     onAnrLocked(connection);
     return LLONG_MIN;
 }
@@ -979,8 +1000,7 @@
     if (connection->monitor) {
         return mMonitorDispatchingTimeout;
     }
-    const sp<WindowInfoHandle> window =
-            getWindowHandleLocked(connection->inputChannel->getConnectionToken());
+    const sp<WindowInfoHandle> window = getWindowHandleLocked(connection->getToken());
     if (window != nullptr) {
         return window->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT);
     }
@@ -1181,7 +1201,7 @@
  * Return true if the events preceding this incoming motion event should be dropped
  * Return false otherwise (the default behaviour)
  */
-bool InputDispatcher::shouldPruneInboundQueueLocked(const MotionEntry& motionEntry) {
+bool InputDispatcher::shouldPruneInboundQueueLocked(const MotionEntry& motionEntry) const {
     const bool isPointerDownEvent = motionEntry.action == AMOTION_EVENT_ACTION_DOWN &&
             isFromSource(motionEntry.source, AINPUT_SOURCE_CLASS_POINTER);
 
@@ -1223,16 +1243,6 @@
         }
     }
 
-    // Prevent getting stuck: if we have a pending key event, and some motion events that have not
-    // yet been processed by some connections, the dispatcher will wait for these motion
-    // events to be processed before dispatching the key event. This is because these motion events
-    // may cause a new window to be launched, which the user might expect to receive focus.
-    // To prevent waiting forever for such events, just send the key to the currently focused window
-    if (isPointerDownEvent && mKeyIsWaitingForEventsTimeout) {
-        ALOGD("Received a new pointer down event, stop waiting for events to process and "
-              "just send the pending key event to the focused window.");
-        mKeyIsWaitingForEventsTimeout = now();
-    }
     return false;
 }
 
@@ -1280,6 +1290,20 @@
                 mNextUnblockedEvent = mInboundQueue.back();
                 needWake = true;
             }
+
+            const bool isPointerDownEvent = motionEntry.action == AMOTION_EVENT_ACTION_DOWN &&
+                    isFromSource(motionEntry.source, AINPUT_SOURCE_CLASS_POINTER);
+            if (isPointerDownEvent && mKeyIsWaitingForEventsTimeout) {
+                // Prevent waiting too long for unprocessed events: if we have a pending key event,
+                // and some other events have not yet been processed, the dispatcher will wait for
+                // these events to be processed before dispatching the key event. This is because
+                // the unprocessed events may cause the focus to change (for example, by launching a
+                // new window or tapping a different window). To prevent waiting too long, we force
+                // the key to be sent to the currently focused window when a new tap comes in.
+                ALOGD("Received a new pointer down event, stop waiting for events to process and "
+                      "just send the pending key event to the currently focused window.");
+                mKeyIsWaitingForEventsTimeout = now();
+            }
             break;
         }
         case EventEntry::Type::FOCUS: {
@@ -1602,15 +1626,15 @@
 
 void InputDispatcher::dispatchFocusLocked(nsecs_t currentTime,
                                           std::shared_ptr<const FocusEntry> entry) {
-    std::shared_ptr<InputChannel> channel = getInputChannelLocked(entry->connectionToken);
-    if (channel == nullptr) {
-        return; // Window has gone away
+    std::shared_ptr<Connection> connection = getConnectionLocked(entry->connectionToken);
+    if (connection == nullptr) {
+        return; // Connection has gone away
     }
     InputTarget target;
-    target.inputChannel = channel;
+    target.connection = connection;
     entry->dispatchInProgress = true;
     std::string message = std::string("Focus ") + (entry->hasFocus ? "entering " : "leaving ") +
-            channel->getName();
+            connection->getInputChannelName();
     std::string reason = std::string("reason=").append(entry->reason);
     android_log_event_list(LOGTAG_INPUT_FOCUS) << message << reason << LOG_ID_EVENTS;
     dispatchEventLocked(currentTime, entry, {target});
@@ -1670,8 +1694,8 @@
         }
     }
 
-    auto channel = getInputChannelLocked(token);
-    if (channel == nullptr) {
+    auto connection = getConnectionLocked(token);
+    if (connection == nullptr) {
         // Window has gone away, clean up Pointer Capture state.
         mWindowTokenWithPointerCapture = nullptr;
         if (mCurrentPointerCaptureRequest.enable) {
@@ -1680,7 +1704,7 @@
         return;
     }
     InputTarget target;
-    target.inputChannel = channel;
+    target.connection = connection;
     entry->dispatchInProgress = true;
     dispatchEventLocked(currentTime, entry, {target});
 
@@ -1711,12 +1735,12 @@
         if (token == nullptr) {
             continue;
         }
-        std::shared_ptr<InputChannel> channel = getInputChannelLocked(token);
-        if (channel == nullptr) {
-            continue; // Window has gone away
+        std::shared_ptr<Connection> connection = getConnectionLocked(token);
+        if (connection == nullptr) {
+            continue; // Connection has gone away
         }
         InputTarget target;
-        target.inputChannel = channel;
+        target.connection = connection;
         inputTargets.push_back(target);
     }
     return inputTargets;
@@ -1994,12 +2018,12 @@
 
 void InputDispatcher::dispatchDragLocked(nsecs_t currentTime,
                                          std::shared_ptr<const DragEntry> entry) {
-    std::shared_ptr<InputChannel> channel = getInputChannelLocked(entry->connectionToken);
-    if (channel == nullptr) {
-        return; // Window has gone away
+    std::shared_ptr<Connection> connection = getConnectionLocked(entry->connectionToken);
+    if (connection == nullptr) {
+        return; // Connection has gone away
     }
     InputTarget target;
-    target.inputChannel = channel;
+    target.connection = connection;
     entry->dispatchInProgress = true;
     dispatchEventLocked(currentTime, entry, {target});
 }
@@ -2052,17 +2076,8 @@
     pokeUserActivityLocked(*eventEntry);
 
     for (const InputTarget& inputTarget : inputTargets) {
-        std::shared_ptr<Connection> connection =
-                getConnectionLocked(inputTarget.inputChannel->getConnectionToken());
-        if (connection != nullptr) {
-            prepareDispatchCycleLocked(currentTime, connection, eventEntry, inputTarget);
-        } else {
-            if (DEBUG_DROPPED_EVENTS_VERBOSE) {
-                LOG(INFO) << "Dropping event delivery to target with channel "
-                          << inputTarget.inputChannel->getName()
-                          << " because it is no longer registered with the input dispatcher.";
-            }
-        }
+        std::shared_ptr<Connection> connection = inputTarget.connection;
+        prepareDispatchCycleLocked(currentTime, connection, eventEntry, inputTarget);
     }
 }
 
@@ -2073,12 +2088,24 @@
     // sending new pointers to the connection when it blocked, but focused events will continue to
     // pile up.
     ALOGW("Canceling events for %s because it is unresponsive",
-          connection->inputChannel->getName().c_str());
-    if (connection->status == Connection::Status::NORMAL) {
-        CancelationOptions options(CancelationOptions::Mode::CANCEL_ALL_EVENTS,
-                                   "application not responding");
-        synthesizeCancelationEventsForConnectionLocked(connection, options);
+          connection->getInputChannelName().c_str());
+    if (connection->status != Connection::Status::NORMAL) {
+        return;
     }
+    CancelationOptions options(CancelationOptions::Mode::CANCEL_ALL_EVENTS,
+                               "application not responding");
+
+    sp<WindowInfoHandle> windowHandle;
+    if (!connection->monitor) {
+        windowHandle = getWindowHandleLocked(connection->getToken());
+        if (windowHandle == nullptr) {
+            // The window that is receiving this ANR was removed, so there is no need to generate
+            // cancellations, because the cancellations would have already been generated when
+            // the window was removed.
+            return;
+        }
+    }
+    synthesizeCancelationEventsForConnectionLocked(connection, options, windowHandle);
 }
 
 void InputDispatcher::resetNoFocusedWindowTimeoutLocked() {
@@ -2135,7 +2162,8 @@
         // Start the timer
         // Wait to send key because there are unprocessed events that may cause focus to change
         mKeyIsWaitingForEventsTimeout = currentTime +
-                std::chrono::duration_cast<std::chrono::nanoseconds>(KEY_WAITING_FOR_EVENTS_TIMEOUT)
+                std::chrono::duration_cast<std::chrono::nanoseconds>(
+                        mPolicy.getKeyWaitingForEventsTimeout())
                         .count();
         return true;
     }
@@ -2256,17 +2284,11 @@
         const std::vector<Monitor>& monitors) const {
     std::vector<Monitor> responsiveMonitors;
     std::copy_if(monitors.begin(), monitors.end(), std::back_inserter(responsiveMonitors),
-                 [this](const Monitor& monitor) REQUIRES(mLock) {
-                     std::shared_ptr<Connection> connection =
-                             getConnectionLocked(monitor.inputChannel->getConnectionToken());
-                     if (connection == nullptr) {
-                         ALOGE("Could not find connection for monitor %s",
-                               monitor.inputChannel->getName().c_str());
-                         return false;
-                     }
+                 [](const Monitor& monitor) REQUIRES(mLock) {
+                     std::shared_ptr<Connection> connection = monitor.connection;
                      if (!connection->responsive) {
                          ALOGW("Unresponsive monitor %s will not get the new gesture",
-                               connection->inputChannel->getName().c_str());
+                               connection->getInputChannelName().c_str());
                          return false;
                      }
                      return true;
@@ -2643,7 +2665,7 @@
             for (InputTarget& target : targets) {
                 if (target.dispatchMode == InputTarget::DispatchMode::OUTSIDE) {
                     sp<WindowInfoHandle> targetWindow =
-                            getWindowHandleLocked(target.inputChannel->getConnectionToken());
+                            getWindowHandleLocked(target.connection->getToken());
                     if (targetWindow->getInfo()->ownerUid != foregroundWindowUid) {
                         target.flags |= InputTarget::Flags::ZERO_COORDS;
                     }
@@ -2841,13 +2863,13 @@
         const sp<android::gui::WindowInfoHandle>& windowHandle,
         InputTarget::DispatchMode dispatchMode, ftl::Flags<InputTarget::Flags> targetFlags,
         std::optional<nsecs_t> firstDownTimeInTarget) const {
-    std::shared_ptr<InputChannel> inputChannel = getInputChannelLocked(windowHandle->getToken());
-    if (inputChannel == nullptr) {
+    std::shared_ptr<Connection> connection = getConnectionLocked(windowHandle->getToken());
+    if (connection == nullptr) {
         ALOGW("Not creating InputTarget for %s, no input channel", windowHandle->getName().c_str());
         return {};
     }
     InputTarget inputTarget;
-    inputTarget.inputChannel = inputChannel;
+    inputTarget.connection = connection;
     inputTarget.windowHandle = windowHandle;
     inputTarget.dispatchMode = dispatchMode;
     inputTarget.flags = targetFlags;
@@ -2871,8 +2893,7 @@
     std::vector<InputTarget>::iterator it =
             std::find_if(inputTargets.begin(), inputTargets.end(),
                          [&windowHandle](const InputTarget& inputTarget) {
-                             return inputTarget.inputChannel->getConnectionToken() ==
-                                     windowHandle->getToken();
+                             return inputTarget.connection->getToken() == windowHandle->getToken();
                          });
 
     const WindowInfo* windowInfo = windowHandle->getInfo();
@@ -2912,8 +2933,7 @@
     std::vector<InputTarget>::iterator it =
             std::find_if(inputTargets.begin(), inputTargets.end(),
                          [&windowHandle](const InputTarget& inputTarget) {
-                             return inputTarget.inputChannel->getConnectionToken() ==
-                                     windowHandle->getToken();
+                             return inputTarget.connection->getToken() == windowHandle->getToken();
                          });
 
     // This is a hack, because the actual entry could potentially be an ACTION_DOWN event that
@@ -2963,7 +2983,7 @@
 
     for (const Monitor& monitor : selectResponsiveMonitorsLocked(monitorsIt->second)) {
         InputTarget target;
-        target.inputChannel = monitor.inputChannel;
+        target.connection = monitor.connection;
         // target.firstDownTimeInTarget is not set for global monitors. It is only required in split
         // touch and global monitoring works as intended even without setting firstDownTimeInTarget
         if (const auto& it = mDisplayInfos.find(displayId); it != mDisplayInfos.end()) {
@@ -3334,10 +3354,17 @@
 void InputDispatcher::enqueueDispatchEntryLocked(const std::shared_ptr<Connection>& connection,
                                                  std::shared_ptr<const EventEntry> eventEntry,
                                                  const InputTarget& inputTarget) {
+    const bool isKeyOrMotion = eventEntry->type == EventEntry::Type::KEY ||
+            eventEntry->type == EventEntry::Type::MOTION;
+    if (isKeyOrMotion && !inputTarget.windowHandle && !connection->monitor) {
+        LOG(FATAL) << "All InputTargets for non-monitors must be associated with a window; target: "
+                   << inputTarget << " connection: " << connection->getInputChannelName()
+                   << " entry: " << eventEntry->getDescription();
+    }
     // This is a new event.
     // Enqueue a new dispatch entry onto the outbound queue for this connection.
     std::unique_ptr<DispatchEntry> dispatchEntry =
-            createDispatchEntry(inputTarget, eventEntry, inputTarget.flags);
+            createDispatchEntry(inputTarget, eventEntry, inputTarget.flags, mWindowInfosVsyncId);
 
     // Use the eventEntry from dispatchEntry since the entry may have changed and can now be a
     // different EventEntry than what was passed in.
@@ -3456,7 +3483,7 @@
                           << cancelEvent->getDescription();
                 std::unique_ptr<DispatchEntry> cancelDispatchEntry =
                         createDispatchEntry(inputTarget, std::move(cancelEvent),
-                                            ftl::Flags<InputTarget::Flags>());
+                                            ftl::Flags<InputTarget::Flags>(), mWindowInfosVsyncId);
 
                 // Send these cancel events to the queue before sending the event from the new
                 // device.
@@ -3477,7 +3504,7 @@
             }
 
             dispatchPointerDownOutsideFocus(resolvedMotion->source, resolvedMotion->action,
-                                            inputTarget.inputChannel->getConnectionToken());
+                                            inputTarget.connection->getToken());
 
             break;
         }
@@ -3560,13 +3587,9 @@
             continue; // Skip windows that receive ACTION_OUTSIDE
         }
 
-        sp<IBinder> token = target.inputChannel->getConnectionToken();
-        std::shared_ptr<Connection> connection = getConnectionLocked(token);
-        if (connection == nullptr) {
-            continue;
-        }
+        sp<IBinder> token = target.connection->getToken();
         newConnectionTokens.insert(std::move(token));
-        newConnections.emplace_back(connection);
+        newConnections.emplace_back(target.connection);
         if (target.windowHandle) {
             interactionUids.emplace(target.windowHandle->getInfo()->ownerUid);
         }
@@ -3586,7 +3609,7 @@
 
     std::string targetList;
     for (const std::shared_ptr<Connection>& connection : newConnections) {
-        targetList += connection->getWindowName() + ", ";
+        targetList += connection->getInputChannelName() + ", ";
     }
     std::string message = "Interaction with: " + targetList;
     if (targetList.empty()) {
@@ -3800,7 +3823,7 @@
         connection->outboundQueue.erase(connection->outboundQueue.begin());
         traceOutboundQueueLength(*connection);
         if (connection->responsive) {
-            mAnrTracker.insert(timeoutTime, connection->inputChannel->getConnectionToken());
+            mAnrTracker.insert(timeoutTime, connection->getToken());
         }
         traceWaitQueueLength(*connection);
     }
@@ -3890,7 +3913,7 @@
 
             auto command = [this, connection]() REQUIRES(mLock) {
                 scoped_unlock unlock(mLock);
-                mPolicy.notifyInputChannelBroken(connection->inputChannel->getConnectionToken());
+                mPolicy.notifyInputChannelBroken(connection->getToken());
             };
             postCommandLocked(std::move(command));
         }
@@ -3948,10 +3971,9 @@
                 if (shouldReportMetricsForConnection(*connection)) {
                     const InputPublisher::Timeline& timeline =
                             std::get<InputPublisher::Timeline>(*result);
-                    mLatencyTracker
-                            .trackGraphicsLatency(timeline.inputEventId,
-                                                  connection->inputChannel->getConnectionToken(),
-                                                  std::move(timeline.graphicsTimeline));
+                    mLatencyTracker.trackGraphicsLatency(timeline.inputEventId,
+                                                         connection->getToken(),
+                                                         std::move(timeline.graphicsTimeline));
                 }
             }
             gotOne = true;
@@ -3972,8 +3994,7 @@
     } else {
         // Monitor channels are never explicitly unregistered.
         // We do it automatically when the remote endpoint is closed so don't warn about them.
-        const bool stillHaveWindowHandle =
-                getWindowHandleLocked(connection->inputChannel->getConnectionToken()) != nullptr;
+        const bool stillHaveWindowHandle = getWindowHandleLocked(connection->getToken()) != nullptr;
         notify = !connection->monitor && stillHaveWindowHandle;
         if (notify) {
             ALOGW("channel '%s' ~ Consumer closed input channel or an error occurred.  events=0x%x",
@@ -3982,38 +4003,84 @@
     }
 
     // Remove the channel.
-    removeInputChannelLocked(connection->inputChannel->getConnectionToken(), notify);
+    removeInputChannelLocked(connection->getToken(), notify);
     return 0; // remove the callback
 }
 
 void InputDispatcher::synthesizeCancelationEventsForAllConnectionsLocked(
         const CancelationOptions& options) {
-    for (const auto& [token, connection] : mConnectionsByToken) {
-        synthesizeCancelationEventsForConnectionLocked(connection, options);
+    // Cancel windows (i.e. non-monitors).
+    // A channel must have at least one window to receive any input. If a window was removed, the
+    // event streams directed to the window will already have been canceled during window removal.
+    // So there is no need to generate cancellations for connections without any windows.
+    const auto [cancelPointers, cancelNonPointers] = expandCancellationMode(options.mode);
+    // Generate cancellations for touched windows first. This is to avoid generating cancellations
+    // through a non-touched window if there are more than one window for an input channel.
+    if (cancelPointers) {
+        for (const auto& [displayId, touchState] : mTouchStatesByDisplay) {
+            if (options.displayId.has_value() && options.displayId != displayId) {
+                continue;
+            }
+            for (const auto& touchedWindow : touchState.windows) {
+                synthesizeCancelationEventsForWindowLocked(touchedWindow.windowHandle, options);
+            }
+        }
     }
+    // Follow up by generating cancellations for all windows, because we don't explicitly track
+    // the windows that have an ongoing focus event stream.
+    if (cancelNonPointers) {
+        for (const auto& [_, handles] : mWindowHandlesByDisplay) {
+            for (const auto& windowHandle : handles) {
+                synthesizeCancelationEventsForWindowLocked(windowHandle, options);
+            }
+        }
+    }
+
+    // Cancel monitors.
+    synthesizeCancelationEventsForMonitorsLocked(options);
 }
 
 void InputDispatcher::synthesizeCancelationEventsForMonitorsLocked(
         const CancelationOptions& options) {
     for (const auto& [_, monitors] : mGlobalMonitorsByDisplay) {
         for (const Monitor& monitor : monitors) {
-            synthesizeCancelationEventsForInputChannelLocked(monitor.inputChannel, options);
+            synthesizeCancelationEventsForConnectionLocked(monitor.connection, options,
+                                                           /*window=*/nullptr);
         }
     }
 }
 
-void InputDispatcher::synthesizeCancelationEventsForInputChannelLocked(
-        const std::shared_ptr<InputChannel>& channel, const CancelationOptions& options) {
-    std::shared_ptr<Connection> connection = getConnectionLocked(channel->getConnectionToken());
-    if (connection == nullptr) {
-        return;
+void InputDispatcher::synthesizeCancelationEventsForWindowLocked(
+        const sp<WindowInfoHandle>& windowHandle, const CancelationOptions& options,
+        const std::shared_ptr<Connection>& connection) {
+    if (windowHandle == nullptr) {
+        LOG(FATAL) << __func__ << ": Window handle must not be null";
+    }
+    if (connection) {
+        // The connection can be optionally provided to avoid multiple lookups.
+        if (windowHandle->getToken() != connection->getToken()) {
+            LOG(FATAL) << __func__
+                       << ": Wrong connection provided for window: " << windowHandle->getName();
+        }
     }
 
-    synthesizeCancelationEventsForConnectionLocked(connection, options);
+    std::shared_ptr<Connection> resolvedConnection =
+            connection ? connection : getConnectionLocked(windowHandle->getToken());
+    if (!resolvedConnection) {
+        LOG(DEBUG) << __func__ << "No connection found for window: " << windowHandle->getName();
+        return;
+    }
+    synthesizeCancelationEventsForConnectionLocked(resolvedConnection, options, windowHandle);
 }
 
 void InputDispatcher::synthesizeCancelationEventsForConnectionLocked(
-        const std::shared_ptr<Connection>& connection, const CancelationOptions& options) {
+        const std::shared_ptr<Connection>& connection, const CancelationOptions& options,
+        const sp<WindowInfoHandle>& window) {
+    if (!connection->monitor && window == nullptr) {
+        LOG(FATAL) << __func__
+                   << ": Cannot send event to non-monitor channel without a window - channel: "
+                   << connection->getInputChannelName();
+    }
     if (connection->status != Connection::Status::NORMAL) {
         return;
     }
@@ -4040,8 +4107,8 @@
 
     const bool wasEmpty = connection->outboundQueue.empty();
     // The target to use if we don't find a window associated with the channel.
-    const InputTarget fallbackTarget{.inputChannel = connection->inputChannel};
-    const auto& token = connection->inputChannel->getConnectionToken();
+    const InputTarget fallbackTarget{.connection = connection};
+    const auto& token = connection->getToken();
 
     for (size_t i = 0; i < cancelationEvents.size(); i++) {
         std::unique_ptr<EventEntry> cancelationEventEntry = std::move(cancelationEvents[i]);
@@ -4050,10 +4117,7 @@
         switch (cancelationEventEntry->type) {
             case EventEntry::Type::KEY: {
                 const auto& keyEntry = static_cast<const KeyEntry&>(*cancelationEventEntry);
-                const std::optional<int32_t> targetDisplay = keyEntry.displayId != ADISPLAY_ID_NONE
-                        ? std::make_optional(keyEntry.displayId)
-                        : std::nullopt;
-                if (const auto& window = getWindowHandleLocked(token, targetDisplay); window) {
+                if (window) {
                     addWindowTargetLocked(window, InputTarget::DispatchMode::AS_IS,
                                           /*targetFlags=*/{}, keyEntry.downTime, targets);
                 } else {
@@ -4064,11 +4128,7 @@
             }
             case EventEntry::Type::MOTION: {
                 const auto& motionEntry = static_cast<const MotionEntry&>(*cancelationEventEntry);
-                const std::optional<int32_t> targetDisplay =
-                        motionEntry.displayId != ADISPLAY_ID_NONE
-                        ? std::make_optional(motionEntry.displayId)
-                        : std::nullopt;
-                if (const auto& window = getWindowHandleLocked(token, targetDisplay); window) {
+                if (window) {
                     std::bitset<MAX_POINTER_ID + 1> pointerIds;
                     for (uint32_t pointerIndex = 0; pointerIndex < motionEntry.getPointerCount();
                          pointerIndex++) {
@@ -4142,8 +4202,12 @@
               connection->getInputChannelName().c_str(), downEvents.size());
     }
 
-    sp<WindowInfoHandle> windowHandle =
-            getWindowHandleLocked(connection->inputChannel->getConnectionToken());
+    const auto [_, touchedWindowState, displayId] =
+            findTouchStateWindowAndDisplayLocked(connection->getToken());
+    if (touchedWindowState == nullptr) {
+        LOG(FATAL) << __func__ << ": Touch state is out of sync: No touched window for token";
+    }
+    const auto& windowHandle = touchedWindowState->windowHandle;
 
     const bool wasEmpty = connection->outboundQueue.empty();
     for (std::unique_ptr<EventEntry>& downEventEntry : downEvents) {
@@ -4161,8 +4225,8 @@
                                                  targetFlags, pointerIds, motionEntry.downTime,
                                                  targets);
                 } else {
-                    targets.emplace_back(InputTarget{.inputChannel = connection->inputChannel,
-                                                     .flags = targetFlags});
+                    targets.emplace_back(
+                            InputTarget{.connection = connection, .flags = targetFlags});
                     const auto it = mDisplayInfos.find(motionEntry.displayId);
                     if (it != mDisplayInfos.end()) {
                         targets.back().displayTransform = it->second.transform;
@@ -4197,17 +4261,6 @@
     }
 }
 
-void InputDispatcher::synthesizeCancelationEventsForWindowLocked(
-        const sp<WindowInfoHandle>& windowHandle, const CancelationOptions& options) {
-    if (windowHandle != nullptr) {
-        std::shared_ptr<Connection> wallpaperConnection =
-                getConnectionLocked(windowHandle->getToken());
-        if (wallpaperConnection != nullptr) {
-            synthesizeCancelationEventsForConnectionLocked(wallpaperConnection, options);
-        }
-    }
-}
-
 std::unique_ptr<MotionEntry> InputDispatcher::splitMotionEvent(
         const MotionEntry& originalMotionEntry, std::bitset<MAX_POINTER_ID + 1> pointerIds,
         nsecs_t splitDownTime) {
@@ -4901,7 +4954,7 @@
             break;
         }
         default: {
-            ALOGE("Cannot verify events of type %" PRId32, event.getType());
+            LOG(ERROR) << "Cannot verify events of type " << ftl::enum_string(event.getType());
             return nullptr;
         }
     }
@@ -5119,15 +5172,6 @@
     return true;
 }
 
-std::shared_ptr<InputChannel> InputDispatcher::getInputChannelLocked(
-        const sp<IBinder>& token) const {
-    auto connectionIt = mConnectionsByToken.find(token);
-    if (connectionIt == mConnectionsByToken.end()) {
-        return nullptr;
-    }
-    return connectionIt->second->inputChannel;
-}
-
 void InputDispatcher::updateWindowHandlesForDisplayLocked(
         const std::vector<sp<WindowInfoHandle>>& windowInfoHandles, int32_t displayId) {
     if (windowInfoHandles.empty()) {
@@ -5147,7 +5191,7 @@
     std::vector<sp<WindowInfoHandle>> newHandles;
     for (const sp<WindowInfoHandle>& handle : windowInfoHandles) {
         const WindowInfo* info = handle->getInfo();
-        if (getInputChannelLocked(handle->getToken()) == nullptr) {
+        if (getConnectionLocked(handle->getToken()) == nullptr) {
             const bool noInputChannel =
                     info->inputConfig.test(WindowInfo::InputConfig::NO_INPUT_CHANNEL);
             const bool canReceiveInput =
@@ -5226,6 +5270,7 @@
 
     // Copy old handles for release if they are no longer present.
     const std::vector<sp<WindowInfoHandle>> oldWindowHandles = getWindowHandlesLocked(displayId);
+    const sp<WindowInfoHandle> removedFocusedWindowHandle = getFocusedWindowHandleLocked(displayId);
 
     updateWindowHandlesForDisplayLocked(windowInfoHandles, displayId);
 
@@ -5234,7 +5279,7 @@
     std::optional<FocusResolver::FocusChanges> changes =
             mFocusResolver.setInputWindows(displayId, windowHandles);
     if (changes) {
-        onFocusChangedLocked(*changes);
+        onFocusChangedLocked(*changes, removedFocusedWindowHandle);
     }
 
     std::unordered_map<int32_t, TouchState>::iterator stateIt =
@@ -5246,19 +5291,16 @@
             if (getWindowHandleLocked(touchedWindow.windowHandle) == nullptr) {
                 LOG(INFO) << "Touched window was removed: " << touchedWindow.windowHandle->getName()
                           << " in display %" << displayId;
-                std::shared_ptr<InputChannel> touchedInputChannel =
-                        getInputChannelLocked(touchedWindow.windowHandle->getToken());
-                if (touchedInputChannel != nullptr) {
-                    CancelationOptions options(CancelationOptions::Mode::CANCEL_POINTER_EVENTS,
-                                               "touched window was removed");
-                    synthesizeCancelationEventsForInputChannelLocked(touchedInputChannel, options);
-                    // Since we are about to drop the touch, cancel the events for the wallpaper as
-                    // well.
-                    if (touchedWindow.targetFlags.test(InputTarget::Flags::FOREGROUND) &&
-                        touchedWindow.windowHandle->getInfo()->inputConfig.test(
-                                gui::WindowInfo::InputConfig::DUPLICATE_TOUCH_TO_WALLPAPER)) {
-                        sp<WindowInfoHandle> wallpaper = state.getWallpaperWindow();
-                        synthesizeCancelationEventsForWindowLocked(wallpaper, options);
+                CancelationOptions options(CancelationOptions::Mode::CANCEL_POINTER_EVENTS,
+                                           "touched window was removed");
+                synthesizeCancelationEventsForWindowLocked(touchedWindow.windowHandle, options);
+                // Since we are about to drop the touch, cancel the events for the wallpaper as
+                // well.
+                if (touchedWindow.targetFlags.test(InputTarget::Flags::FOREGROUND) &&
+                    touchedWindow.windowHandle->getInfo()->inputConfig.test(
+                            gui::WindowInfo::InputConfig::DUPLICATE_TOUCH_TO_WALLPAPER)) {
+                    if (const auto& ww = state.getWallpaperWindow(); ww) {
+                        synthesizeCancelationEventsForWindowLocked(ww, options);
                     }
                 }
                 state.windows.erase(state.windows.begin() + i);
@@ -5356,15 +5398,16 @@
             sp<IBinder> oldFocusedWindowToken =
                     mFocusResolver.getFocusedWindowToken(mFocusedDisplayId);
             if (oldFocusedWindowToken != nullptr) {
-                std::shared_ptr<InputChannel> inputChannel =
-                        getInputChannelLocked(oldFocusedWindowToken);
-                if (inputChannel != nullptr) {
-                    CancelationOptions
-                            options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
-                                    "The display which contains this window no longer has focus.");
-                    options.displayId = ADISPLAY_ID_NONE;
-                    synthesizeCancelationEventsForInputChannelLocked(inputChannel, options);
+                const auto windowHandle =
+                        getWindowHandleLocked(oldFocusedWindowToken, mFocusedDisplayId);
+                if (windowHandle == nullptr) {
+                    LOG(FATAL) << __func__ << ": Previously focused token did not have a window";
                 }
+                CancelationOptions
+                        options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
+                                "The display which contains this window no longer has focus.");
+                options.displayId = ADISPLAY_ID_NONE;
+                synthesizeCancelationEventsForWindowLocked(windowHandle, options);
             }
             mFocusedDisplayId = displayId;
 
@@ -5544,9 +5587,10 @@
         }
         const int32_t deviceId = *deviceIds.begin();
 
-        sp<WindowInfoHandle> toWindowHandle = getWindowHandleLocked(toToken, displayId);
-        if (toWindowHandle == nullptr) {
-            ALOGW("Cannot transfer touch because to window not found.");
+        const sp<WindowInfoHandle> fromWindowHandle = touchedWindow->windowHandle;
+        const sp<WindowInfoHandle> toWindowHandle = getWindowHandleLocked(toToken, displayId);
+        if (!toWindowHandle) {
+            ALOGW("Cannot transfer touch because the transfer target window was not found.");
             return false;
         }
 
@@ -5559,7 +5603,6 @@
         // Erase old window.
         ftl::Flags<InputTarget::Flags> oldTargetFlags = touchedWindow->targetFlags;
         std::vector<PointerProperties> pointers = touchedWindow->getTouchingPointers(deviceId);
-        sp<WindowInfoHandle> fromWindowHandle = touchedWindow->windowHandle;
         state->removeWindowByToken(fromToken);
 
         // Add new window.
@@ -5591,7 +5634,7 @@
             fromConnection->inputState.mergePointerStateTo(toConnection->inputState);
             CancelationOptions options(CancelationOptions::Mode::CANCEL_POINTER_EVENTS,
                                        "transferring touch from this window to another window");
-            synthesizeCancelationEventsForConnectionLocked(fromConnection, options);
+            synthesizeCancelationEventsForWindowLocked(fromWindowHandle, options, fromConnection);
             synthesizePointerDownEventsForConnectionLocked(downTimeInTarget, toConnection,
                                                            newTargetFlags);
 
@@ -5826,11 +5869,10 @@
     if (!mConnectionsByToken.empty()) {
         dump += INDENT "Connections:\n";
         for (const auto& [token, connection] : mConnectionsByToken) {
-            dump += StringPrintf(INDENT2 "%i: channelName='%s', windowName='%s', "
+            dump += StringPrintf(INDENT2 "%i: channelName='%s', "
                                          "status=%s, monitor=%s, responsive=%s\n",
-                                 connection->inputChannel->getFd().get(),
+                                 connection->inputPublisher.getChannel().getFd(),
                                  connection->getInputChannelName().c_str(),
-                                 connection->getWindowName().c_str(),
                                  ftl::enum_string(connection->status).c_str(),
                                  toString(connection->monitor), toString(connection->responsive));
 
@@ -5884,8 +5926,8 @@
     const size_t numMonitors = monitors.size();
     for (size_t i = 0; i < numMonitors; i++) {
         const Monitor& monitor = monitors[i];
-        const std::shared_ptr<InputChannel>& channel = monitor.inputChannel;
-        dump += StringPrintf(INDENT2 "%zu: '%s', ", i, channel->getName().c_str());
+        const std::shared_ptr<Connection>& connection = monitor.connection;
+        dump += StringPrintf(INDENT2 "%zu: '%s', ", i, connection->getInputChannelName().c_str());
         dump += "\n";
     }
 }
@@ -5915,20 +5957,20 @@
     { // acquire lock
         std::scoped_lock _l(mLock);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        auto&& fd = serverChannel->getFd();
+        const int fd = serverChannel->getFd();
         std::shared_ptr<Connection> connection =
                 std::make_shared<Connection>(std::move(serverChannel), /*monitor=*/false,
                                              mIdGenerator);
 
-        if (mConnectionsByToken.find(token) != mConnectionsByToken.end()) {
+        auto [_, inserted] = mConnectionsByToken.try_emplace(token, connection);
+        if (!inserted) {
             ALOGE("Created a new connection, but the token %p is already known", token.get());
         }
-        mConnectionsByToken.emplace(token, connection);
 
         std::function<int(int events)> callback = std::bind(&InputDispatcher::handleReceiveCallback,
                                                             this, std::placeholders::_1, token);
 
-        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     } // release lock
 
@@ -5940,9 +5982,9 @@
 Result<std::unique_ptr<InputChannel>> InputDispatcher::createInputMonitor(int32_t displayId,
                                                                           const std::string& name,
                                                                           gui::Pid pid) {
-    std::shared_ptr<InputChannel> serverChannel;
+    std::unique_ptr<InputChannel> serverChannel;
     std::unique_ptr<InputChannel> clientChannel;
-    status_t result = openInputChannelPair(name, serverChannel, clientChannel);
+    status_t result = InputChannel::openInputChannelPair(name, serverChannel, clientChannel);
     if (result) {
         return base::Error(result) << "Failed to open input channel pair with name " << name;
     }
@@ -5955,21 +5997,23 @@
                                           << " without a specified display.";
         }
 
-        std::shared_ptr<Connection> connection =
-                std::make_shared<Connection>(serverChannel, /*monitor=*/true, mIdGenerator);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        auto&& fd = serverChannel->getFd();
+        const int fd = serverChannel->getFd();
+        std::shared_ptr<Connection> connection =
+                std::make_shared<Connection>(std::move(serverChannel), /*monitor=*/true,
+                                             mIdGenerator);
 
-        if (mConnectionsByToken.find(token) != mConnectionsByToken.end()) {
+        auto [_, inserted] = mConnectionsByToken.emplace(token, connection);
+        if (!inserted) {
             ALOGE("Created a new connection, but the token %p is already known", token.get());
         }
-        mConnectionsByToken.emplace(token, connection);
+
         std::function<int(int events)> callback = std::bind(&InputDispatcher::handleReceiveCallback,
                                                             this, std::placeholders::_1, token);
 
-        mGlobalMonitorsByDisplay[displayId].emplace_back(serverChannel, pid);
+        mGlobalMonitorsByDisplay[displayId].emplace_back(connection, pid);
 
-        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     }
 
@@ -6008,7 +6052,7 @@
         removeMonitorChannelLocked(connectionToken);
     }
 
-    mLooper->removeFd(connection->inputChannel->getFd().get());
+    mLooper->removeFd(connection->inputPublisher.getChannel().getFd());
 
     nsecs_t currentTime = now();
     abortBrokenDispatchCycleLocked(currentTime, connection, notify);
@@ -6021,7 +6065,7 @@
     for (auto it = mGlobalMonitorsByDisplay.begin(); it != mGlobalMonitorsByDisplay.end();) {
         auto& [displayId, monitors] = *it;
         std::erase_if(monitors, [connectionToken](const Monitor& monitor) {
-            return monitor.inputChannel->getConnectionToken() == connectionToken;
+            return monitor.connection->getToken() == connectionToken;
         });
 
         if (monitors.empty()) {
@@ -6038,8 +6082,8 @@
 }
 
 status_t InputDispatcher::pilferPointersLocked(const sp<IBinder>& token) {
-    const std::shared_ptr<InputChannel> requestingChannel = getInputChannelLocked(token);
-    if (!requestingChannel) {
+    const std::shared_ptr<Connection> requestingConnection = getConnectionLocked(token);
+    if (!requestingConnection) {
         LOG(WARNING)
                 << "Attempted to pilfer pointers from an un-registered channel or invalid token";
         return BAD_VALUE;
@@ -6072,16 +6116,14 @@
 
         std::string canceledWindows;
         for (const TouchedWindow& w : state.windows) {
-            const std::shared_ptr<InputChannel> channel =
-                    getInputChannelLocked(w.windowHandle->getToken());
-            if (channel != nullptr && channel->getConnectionToken() != token) {
-                synthesizeCancelationEventsForInputChannelLocked(channel, options);
+            if (w.windowHandle->getToken() != token) {
+                synthesizeCancelationEventsForWindowLocked(w.windowHandle, options);
                 canceledWindows += canceledWindows.empty() ? "[" : ", ";
-                canceledWindows += channel->getName();
+                canceledWindows += w.windowHandle->getName();
             }
         }
         canceledWindows += canceledWindows.empty() ? "[]" : "]";
-        LOG(INFO) << "Channel " << requestingChannel->getName()
+        LOG(INFO) << "Channel " << requestingConnection->getInputChannelName()
                   << " is stealing input gesture for device " << deviceId << " from "
                   << canceledWindows;
 
@@ -6147,7 +6189,7 @@
 std::optional<gui::Pid> InputDispatcher::findMonitorPidByTokenLocked(const sp<IBinder>& token) {
     for (const auto& [_, monitors] : mGlobalMonitorsByDisplay) {
         for (const Monitor& monitor : monitors) {
-            if (monitor.inputChannel->getConnectionToken() == token) {
+            if (monitor.connection->getToken() == token) {
                 return monitor.pid;
             }
         }
@@ -6179,8 +6221,8 @@
 }
 
 void InputDispatcher::removeConnectionLocked(const std::shared_ptr<Connection>& connection) {
-    mAnrTracker.eraseToken(connection->inputChannel->getConnectionToken());
-    mConnectionsByToken.erase(connection->inputChannel->getConnectionToken());
+    mAnrTracker.eraseToken(connection->getToken());
+    mConnectionsByToken.erase(connection->getToken());
 }
 
 void InputDispatcher::doDispatchCycleFinishedCommand(nsecs_t finishTime,
@@ -6202,12 +6244,11 @@
 
         const nsecs_t eventDuration = finishTime - dispatchEntry.deliveryTime;
         if (eventDuration > SLOW_EVENT_PROCESSING_WARNING_TIMEOUT) {
-            ALOGI("%s spent %" PRId64 "ms processing %s", connection->getWindowName().c_str(),
+            ALOGI("%s spent %" PRId64 "ms processing %s", connection->getInputChannelName().c_str(),
                   ns2ms(eventDuration), dispatchEntry.eventEntry->getDescription().c_str());
         }
         if (shouldReportFinishedEvent(dispatchEntry, *connection)) {
-            mLatencyTracker.trackFinishedEvent(dispatchEntry.eventEntry->id,
-                                               connection->inputChannel->getConnectionToken(),
+            mLatencyTracker.trackFinishedEvent(dispatchEntry.eventEntry->id, connection->getToken(),
                                                dispatchEntry.deliveryTime, consumeTime, finishTime);
         }
 
@@ -6228,7 +6269,7 @@
         std::unique_ptr<DispatchEntry> dispatchEntry = std::move(*entryIt);
         connection->waitQueue.erase(entryIt);
 
-        const sp<IBinder>& connectionToken = connection->inputChannel->getConnectionToken();
+        const sp<IBinder>& connectionToken = connection->getToken();
         mAnrTracker.erase(dispatchEntry->timeoutTime, connectionToken);
         if (!connection->responsive) {
             connection->responsive = isConnectionResponsive(*connection);
@@ -6239,9 +6280,18 @@
         }
         traceWaitQueueLength(*connection);
         if (fallbackKeyEntry && connection->status == Connection::Status::NORMAL) {
-            const InputTarget target{.inputChannel = connection->inputChannel,
-                                     .flags = dispatchEntry->targetFlags};
-            enqueueDispatchEntryLocked(connection, std::move(fallbackKeyEntry), target);
+            const auto windowHandle = getWindowHandleLocked(connection->getToken());
+            // Only dispatch fallbacks if there is a window for the connection.
+            if (windowHandle != nullptr) {
+                const auto inputTarget =
+                        createInputTargetLocked(windowHandle, InputTarget::DispatchMode::AS_IS,
+                                                dispatchEntry->targetFlags,
+                                                fallbackKeyEntry->downTime);
+                if (inputTarget.has_value()) {
+                    enqueueDispatchEntryLocked(connection, std::move(fallbackKeyEntry),
+                                               *inputTarget);
+                }
+            }
         }
         releaseDispatchEntry(std::move(dispatchEntry));
     }
@@ -6275,7 +6325,7 @@
     // is already healthy again. Don't raise ANR in this situation
     if (connection->waitQueue.empty()) {
         ALOGI("Not raising ANR because the connection %s has recovered",
-              connection->inputChannel->getName().c_str());
+              connection->getInputChannelName().c_str());
         return;
     }
     /**
@@ -6290,10 +6340,10 @@
     const nsecs_t currentWait = now() - oldestEntry.deliveryTime;
     std::string reason =
             android::base::StringPrintf("%s is not responding. Waited %" PRId64 "ms for %s",
-                                        connection->inputChannel->getName().c_str(),
+                                        connection->getInputChannelName().c_str(),
                                         ns2ms(currentWait),
                                         oldestEntry.eventEntry->getDescription().c_str());
-    sp<IBinder> connectionToken = connection->inputChannel->getConnectionToken();
+    sp<IBinder> connectionToken = connection->getToken();
     updateLastAnrStateLocked(getWindowHandleLocked(connectionToken), reason);
 
     processConnectionUnresponsiveLocked(*connection, std::move(reason));
@@ -6392,15 +6442,15 @@
  */
 void InputDispatcher::processConnectionUnresponsiveLocked(const Connection& connection,
                                                           std::string reason) {
-    const sp<IBinder>& connectionToken = connection.inputChannel->getConnectionToken();
+    const sp<IBinder>& connectionToken = connection.getToken();
     std::optional<gui::Pid> pid;
     if (connection.monitor) {
-        ALOGW("Monitor %s is unresponsive: %s", connection.inputChannel->getName().c_str(),
+        ALOGW("Monitor %s is unresponsive: %s", connection.getInputChannelName().c_str(),
               reason.c_str());
         pid = findMonitorPidByTokenLocked(connectionToken);
     } else {
         // The connection is a window
-        ALOGW("Window %s is unresponsive: %s", connection.inputChannel->getName().c_str(),
+        ALOGW("Window %s is unresponsive: %s", connection.getInputChannelName().c_str(),
               reason.c_str());
         const sp<WindowInfoHandle> handle = getWindowHandleLocked(connectionToken);
         if (handle != nullptr) {
@@ -6414,7 +6464,7 @@
  * Tell the policy that a connection has become responsive so that it can stop ANR.
  */
 void InputDispatcher::processConnectionResponsiveLocked(const Connection& connection) {
-    const sp<IBinder>& connectionToken = connection.inputChannel->getConnectionToken();
+    const sp<IBinder>& connectionToken = connection.getToken();
     std::optional<gui::Pid> pid;
     if (connection.monitor) {
         pid = findMonitorPidByTokenLocked(connectionToken);
@@ -6465,22 +6515,26 @@
             mLock.unlock();
 
             if (const auto unhandledKeyFallback =
-                        mPolicy.dispatchUnhandledKey(connection->inputChannel->getConnectionToken(),
-                                                     event, keyEntry.policyFlags);
+                        mPolicy.dispatchUnhandledKey(connection->getToken(), event,
+                                                     keyEntry.policyFlags);
                 unhandledKeyFallback) {
                 event = *unhandledKeyFallback;
             }
 
             mLock.lock();
 
-            // Cancel the fallback key.
+            // Cancel the fallback key, but only if we still have a window for the channel.
+            // It could have been removed during the policy call.
             if (*fallbackKeyCode != AKEYCODE_UNKNOWN) {
-                CancelationOptions options(CancelationOptions::Mode::CANCEL_FALLBACK_EVENTS,
-                                           "application handled the original non-fallback key "
-                                           "or is no longer a foreground target, "
-                                           "canceling previously dispatched fallback key");
-                options.keyCode = *fallbackKeyCode;
-                synthesizeCancelationEventsForConnectionLocked(connection, options);
+                const auto windowHandle = getWindowHandleLocked(connection->getToken());
+                if (windowHandle != nullptr) {
+                    CancelationOptions options(CancelationOptions::Mode::CANCEL_FALLBACK_EVENTS,
+                                               "application handled the original non-fallback key "
+                                               "or is no longer a foreground target, "
+                                               "canceling previously dispatched fallback key");
+                    options.keyCode = *fallbackKeyCode;
+                    synthesizeCancelationEventsForWindowLocked(windowHandle, options, connection);
+                }
             }
             connection->inputState.removeFallbackKey(originalKeyCode);
         }
@@ -6510,8 +6564,8 @@
         mLock.unlock();
 
         bool fallback = false;
-        if (auto fb = mPolicy.dispatchUnhandledKey(connection->inputChannel->getConnectionToken(),
-                                                   event, keyEntry.policyFlags);
+        if (auto fb = mPolicy.dispatchUnhandledKey(connection->getToken(), event,
+                                                   keyEntry.policyFlags);
             fb) {
             fallback = true;
             event = *fb;
@@ -6556,10 +6610,13 @@
                 }
             }
 
-            CancelationOptions options(CancelationOptions::Mode::CANCEL_FALLBACK_EVENTS,
-                                       "canceling fallback, policy no longer desires it");
-            options.keyCode = *fallbackKeyCode;
-            synthesizeCancelationEventsForConnectionLocked(connection, options);
+            const auto windowHandle = getWindowHandleLocked(connection->getToken());
+            if (windowHandle != nullptr) {
+                CancelationOptions options(CancelationOptions::Mode::CANCEL_FALLBACK_EVENTS,
+                                           "canceling fallback, policy no longer desires it");
+                options.keyCode = *fallbackKeyCode;
+                synthesizeCancelationEventsForWindowLocked(windowHandle, options, connection);
+            }
 
             fallback = false;
             *fallbackKeyCode = AKEYCODE_UNKNOWN;
@@ -6619,7 +6676,8 @@
 void InputDispatcher::traceOutboundQueueLength(const Connection& connection) {
     if (ATRACE_ENABLED()) {
         char counterName[40];
-        snprintf(counterName, sizeof(counterName), "oq:%s", connection.getWindowName().c_str());
+        snprintf(counterName, sizeof(counterName), "oq:%s",
+                 connection.getInputChannelName().c_str());
         ATRACE_INT(counterName, connection.outboundQueue.size());
     }
 }
@@ -6627,7 +6685,8 @@
 void InputDispatcher::traceWaitQueueLength(const Connection& connection) {
     if (ATRACE_ENABLED()) {
         char counterName[40];
-        snprintf(counterName, sizeof(counterName), "wq:%s", connection.getWindowName().c_str());
+        snprintf(counterName, sizeof(counterName), "wq:%s",
+                 connection.getInputChannelName().c_str());
         ATRACE_INT(counterName, connection.waitQueue.size());
     }
 }
@@ -6696,15 +6755,19 @@
     mLooper->wake();
 }
 
-void InputDispatcher::onFocusChangedLocked(const FocusResolver::FocusChanges& changes) {
+void InputDispatcher::onFocusChangedLocked(const FocusResolver::FocusChanges& changes,
+                                           const sp<WindowInfoHandle> removedFocusedWindowHandle) {
     if (changes.oldFocus) {
-        std::shared_ptr<InputChannel> focusedInputChannel = getInputChannelLocked(changes.oldFocus);
-        if (focusedInputChannel) {
-            CancelationOptions options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
-                                       "focus left window");
-            synthesizeCancelationEventsForInputChannelLocked(focusedInputChannel, options);
-            enqueueFocusEventLocked(changes.oldFocus, /*hasFocus=*/false, changes.reason);
+        const auto resolvedWindow = removedFocusedWindowHandle != nullptr
+                ? removedFocusedWindowHandle
+                : getWindowHandleLocked(changes.oldFocus, changes.displayId);
+        if (resolvedWindow == nullptr) {
+            LOG(FATAL) << __func__ << ": Previously focused token did not have a window";
         }
+        CancelationOptions options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
+                                   "focus left window");
+        synthesizeCancelationEventsForWindowLocked(resolvedWindow, options);
+        enqueueFocusEventLocked(changes.oldFocus, /*hasFocus=*/false, changes.reason);
     }
     if (changes.newFocus) {
         resetNoFocusedWindowTimeoutLocked();
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index e635852..f2fd0ca 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -369,8 +369,6 @@
             REQUIRES(mLock);
     sp<android::gui::WindowInfoHandle> getWindowHandleLocked(
             const sp<android::gui::WindowInfoHandle>& windowHandle) const REQUIRES(mLock);
-    std::shared_ptr<InputChannel> getInputChannelLocked(const sp<IBinder>& windowToken) const
-            REQUIRES(mLock);
     sp<android::gui::WindowInfoHandle> getFocusedWindowHandleLocked(int displayId) const
             REQUIRES(mLock);
     bool canWindowReceiveMotionLocked(const sp<android::gui::WindowInfoHandle>& window,
@@ -472,7 +470,7 @@
 
     bool isStaleEvent(nsecs_t currentTime, const EventEntry& entry);
 
-    bool shouldPruneInboundQueueLocked(const MotionEntry& motionEntry) REQUIRES(mLock);
+    bool shouldPruneInboundQueueLocked(const MotionEntry& motionEntry) const REQUIRES(mLock);
 
     /**
      * Time to stop waiting for the events to be processed while trying to dispatch a key.
@@ -617,21 +615,21 @@
             REQUIRES(mLock);
     void synthesizeCancelationEventsForMonitorsLocked(const CancelationOptions& options)
             REQUIRES(mLock);
-    void synthesizeCancelationEventsForInputChannelLocked(
-            const std::shared_ptr<InputChannel>& channel, const CancelationOptions& options)
+    void synthesizeCancelationEventsForWindowLocked(const sp<gui::WindowInfoHandle>&,
+                                                    const CancelationOptions&,
+                                                    const std::shared_ptr<Connection>& = nullptr)
             REQUIRES(mLock);
+    // This is a convenience function used to generate cancellation for a connection without having
+    // to check whether it's a monitor or a window. For non-monitors, the window handle must not be
+    // null. Always prefer the "-ForWindow" method above when explicitly dealing with windows.
     void synthesizeCancelationEventsForConnectionLocked(
-            const std::shared_ptr<Connection>& connection, const CancelationOptions& options)
-            REQUIRES(mLock);
+            const std::shared_ptr<Connection>& connection, const CancelationOptions& options,
+            const sp<gui::WindowInfoHandle>& window) REQUIRES(mLock);
 
     void synthesizePointerDownEventsForConnectionLocked(
             const nsecs_t downTime, const std::shared_ptr<Connection>& connection,
             ftl::Flags<InputTarget::Flags> targetFlags) REQUIRES(mLock);
 
-    void synthesizeCancelationEventsForWindowLocked(
-            const sp<android::gui::WindowInfoHandle>& windowHandle,
-            const CancelationOptions& options) REQUIRES(mLock);
-
     // Splitting motion events across windows. When splitting motion event for a target,
     // splitDownTime refers to the time of first 'down' event on that particular target
     std::unique_ptr<MotionEntry> splitMotionEvent(const MotionEntry& originalMotionEntry,
@@ -658,7 +656,9 @@
                                         bool handled, nsecs_t consumeTime) REQUIRES(mLock);
     void doInterceptKeyBeforeDispatchingCommand(const sp<IBinder>& focusedWindowToken,
                                                 const KeyEntry& entry) REQUIRES(mLock);
-    void onFocusChangedLocked(const FocusResolver::FocusChanges& changes) REQUIRES(mLock);
+    void onFocusChangedLocked(const FocusResolver::FocusChanges& changes,
+                              const sp<gui::WindowInfoHandle> removedFocusedWindowHandle = nullptr)
+            REQUIRES(mLock);
     void sendFocusChangedCommandLocked(const sp<IBinder>& oldToken, const sp<IBinder>& newToken)
             REQUIRES(mLock);
     void sendDropWindowCommandLocked(const sp<IBinder>& token, float x, float y) REQUIRES(mLock);
diff --git a/services/inputflinger/dispatcher/InputTarget.cpp b/services/inputflinger/dispatcher/InputTarget.cpp
index c02c5d6..28e3c6d 100644
--- a/services/inputflinger/dispatcher/InputTarget.cpp
+++ b/services/inputflinger/dispatcher/InputTarget.cpp
@@ -83,9 +83,9 @@
 }
 
 std::ostream& operator<<(std::ostream& out, const InputTarget& target) {
-    out << "{inputChannel=";
-    if (target.inputChannel != nullptr) {
-        out << target.inputChannel->getName();
+    out << "{connection=";
+    if (target.connection != nullptr) {
+        out << target.connection->getInputChannelName();
     } else {
         out << "<null>";
     }
diff --git a/services/inputflinger/dispatcher/InputTarget.h b/services/inputflinger/dispatcher/InputTarget.h
index aef866b..5728bdf 100644
--- a/services/inputflinger/dispatcher/InputTarget.h
+++ b/services/inputflinger/dispatcher/InputTarget.h
@@ -19,10 +19,11 @@
 #include <ftl/flags.h>
 #include <gui/WindowInfo.h>
 #include <gui/constants.h>
-#include <input/InputTransport.h>
 #include <ui/Transform.h>
 #include <utils/BitSet.h>
 #include <bitset>
+#include "Connection.h"
+#include "InputTargetFlags.h"
 
 namespace android::inputdispatcher {
 
@@ -33,29 +34,7 @@
  * window area.
  */
 struct InputTarget {
-    enum class Flags : uint32_t {
-        /* This flag indicates that the event is being delivered to a foreground application. */
-        FOREGROUND = 1 << 0,
-
-        /* This flag indicates that the MotionEvent falls within the area of the target
-         * obscured by another visible window above it.  The motion event should be
-         * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED. */
-        WINDOW_IS_OBSCURED = 1 << 1,
-
-        /* This flag indicates that a motion event is being split across multiple windows. */
-        SPLIT = 1 << 2,
-
-        /* This flag indicates that the pointer coordinates dispatched to the application
-         * will be zeroed out to avoid revealing information to an application. This is
-         * used in conjunction with FLAG_DISPATCH_AS_OUTSIDE to prevent apps not sharing
-         * the same UID from watching all touches. */
-        ZERO_COORDS = 1 << 3,
-
-        /* This flag indicates that the target of a MotionEvent is partly or wholly
-         * obscured by another visible window above it.  The motion event should be
-         * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED. */
-        WINDOW_IS_PARTIALLY_OBSCURED = 1 << 14,
-    };
+    using Flags = InputTargetFlags;
 
     enum class DispatchMode {
         /* This flag indicates that the event should be sent as is.
@@ -85,8 +64,8 @@
         ftl_last = SLIPPERY_ENTER,
     };
 
-    // The input channel to be targeted.
-    std::shared_ptr<InputChannel> inputChannel;
+    // The input connection to be targeted.
+    std::shared_ptr<Connection> connection;
 
     // Flags for the input target.
     ftl::Flags<Flags> flags;
diff --git a/services/inputflinger/dispatcher/InputTargetFlags.h b/services/inputflinger/dispatcher/InputTargetFlags.h
new file mode 100644
index 0000000..7497543
--- /dev/null
+++ b/services/inputflinger/dispatcher/InputTargetFlags.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <ftl/flags.h>
+
+namespace android::inputdispatcher {
+
+enum class InputTargetFlags : uint32_t {
+    /* This flag indicates that the event is being delivered to a foreground application. */
+    FOREGROUND = 1 << 0,
+
+    /* This flag indicates that the MotionEvent falls within the area of the target
+     * obscured by another visible window above it.  The motion event should be
+     * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED. */
+    WINDOW_IS_OBSCURED = 1 << 1,
+
+    /* This flag indicates that a motion event is being split across multiple windows. */
+    SPLIT = 1 << 2,
+
+    /* This flag indicates that the pointer coordinates dispatched to the application
+     * will be zeroed out to avoid revealing information to an application. This is
+     * used in conjunction with FLAG_DISPATCH_AS_OUTSIDE to prevent apps not sharing
+     * the same UID from watching all touches. */
+    ZERO_COORDS = 1 << 3,
+
+    /* This flag indicates that the target of a MotionEvent is partly or wholly
+     * obscured by another visible window above it.  The motion event should be
+     * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED. */
+    WINDOW_IS_PARTIALLY_OBSCURED = 1 << 14,
+};
+
+} // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/Monitor.cpp b/services/inputflinger/dispatcher/Monitor.cpp
index 204791e..4e77d90 100644
--- a/services/inputflinger/dispatcher/Monitor.cpp
+++ b/services/inputflinger/dispatcher/Monitor.cpp
@@ -19,7 +19,7 @@
 namespace android::inputdispatcher {
 
 // --- Monitor ---
-Monitor::Monitor(const std::shared_ptr<InputChannel>& inputChannel, gui::Pid pid)
-      : inputChannel(inputChannel), pid(pid) {}
+Monitor::Monitor(const std::shared_ptr<Connection>& connection, gui::Pid pid)
+      : connection(connection), pid(pid) {}
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/Monitor.h b/services/inputflinger/dispatcher/Monitor.h
index 1b1eb3a..d15a222 100644
--- a/services/inputflinger/dispatcher/Monitor.h
+++ b/services/inputflinger/dispatcher/Monitor.h
@@ -17,16 +17,16 @@
 #pragma once
 
 #include <gui/PidUid.h>
-#include <input/InputTransport.h>
+#include "Connection.h"
 
 namespace android::inputdispatcher {
 
 struct Monitor {
-    std::shared_ptr<InputChannel> inputChannel; // never null
+    std::shared_ptr<Connection> connection; // never null
 
     gui::Pid pid;
 
-    explicit Monitor(const std::shared_ptr<InputChannel>& inputChannel, gui::Pid pid);
+    explicit Monitor(const std::shared_ptr<Connection>& connection, gui::Pid pid);
 };
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 9e6209b..62c2b02 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -131,6 +131,18 @@
         return std::chrono::nanoseconds(currentTime - eventTime) >= STALE_EVENT_TIMEOUT;
     }
 
+    /**
+     * Get the additional latency to add while waiting for other input events to process before
+     * dispatching the pending key.
+     * If there are unprocessed events, the pending key will not be dispatched immediately. Instead,
+     * the dispatcher will wait for this timeout, to account for the possibility that the focus
+     * might change due to touch or other events (such as another app getting launched by keys).
+     * This would give the pending key the opportunity to go to a newly focused window instead.
+     */
+    virtual std::chrono::nanoseconds getKeyWaitingForEventsTimeout() {
+        return KEY_WAITING_FOR_EVENTS_TIMEOUT;
+    }
+
     /* Notifies the policy that a pointer down event has occurred outside the current focused
      * window.
      *
@@ -150,6 +162,13 @@
     /* Notifies the policy that there was an input device interaction with apps. */
     virtual void notifyDeviceInteraction(DeviceId deviceId, nsecs_t timestamp,
                                          const std::set<gui::Uid>& uids) = 0;
+
+private:
+    // Additional key latency in case a connection is still processing some motion events.
+    // This will help with the case when a user touched a button that opens a new window,
+    // and gives us the chance to dispatch the key to this new window.
+    static constexpr std::chrono::nanoseconds KEY_WAITING_FOR_EVENTS_TIMEOUT =
+            std::chrono::milliseconds(500);
 };
 
 } // namespace android
diff --git a/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp
new file mode 100644
index 0000000..a61fa85
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "AndroidInputEventProtoConverter.h"
+
+#include <android-base/logging.h>
+#include <perfetto/trace/android/android_input_event.pbzero.h>
+
+namespace android::inputdispatcher::trace {
+
+void AndroidInputEventProtoConverter::toProtoMotionEvent(const TracedMotionEvent& event,
+                                                         proto::AndroidMotionEvent& outProto) {
+    outProto.set_event_id(event.id);
+    outProto.set_event_time_nanos(event.eventTime);
+    outProto.set_down_time_nanos(event.downTime);
+    outProto.set_source(event.source);
+    outProto.set_action(event.action);
+    outProto.set_device_id(event.deviceId);
+    outProto.set_display_id(event.displayId);
+    outProto.set_classification(static_cast<int32_t>(event.classification));
+    outProto.set_cursor_position_x(event.xCursorPosition);
+    outProto.set_cursor_position_y(event.yCursorPosition);
+    outProto.set_flags(event.flags);
+    outProto.set_policy_flags(event.policyFlags);
+
+    for (uint32_t i = 0; i < event.pointerProperties.size(); i++) {
+        auto* pointer = outProto.add_pointer();
+
+        const auto& props = event.pointerProperties[i];
+        pointer->set_pointer_id(props.id);
+        pointer->set_tool_type(static_cast<int32_t>(props.toolType));
+
+        const auto& coords = event.pointerCoords[i];
+        auto bits = BitSet64(coords.bits);
+        for (int32_t axisIndex = 0; !bits.isEmpty(); axisIndex++) {
+            const auto axis = bits.clearFirstMarkedBit();
+            auto axisEntry = pointer->add_axis_value();
+            axisEntry->set_axis(axis);
+            axisEntry->set_value(coords.values[axisIndex]);
+        }
+    }
+}
+
+void AndroidInputEventProtoConverter::toProtoKeyEvent(const TracedKeyEvent& event,
+                                                      proto::AndroidKeyEvent& outProto) {
+    outProto.set_event_id(event.id);
+    outProto.set_event_time_nanos(event.eventTime);
+    outProto.set_down_time_nanos(event.downTime);
+    outProto.set_source(event.source);
+    outProto.set_action(event.action);
+    outProto.set_device_id(event.deviceId);
+    outProto.set_display_id(event.displayId);
+    outProto.set_key_code(event.keyCode);
+    outProto.set_scan_code(event.scanCode);
+    outProto.set_meta_state(event.metaState);
+    outProto.set_repeat_count(event.repeatCount);
+    outProto.set_flags(event.flags);
+    outProto.set_policy_flags(event.policyFlags);
+}
+
+void AndroidInputEventProtoConverter::toProtoWindowDispatchEvent(
+        const InputTracingBackendInterface::WindowDispatchArgs& args,
+        proto::AndroidWindowInputDispatchEvent& outProto) {
+    std::visit([&](auto entry) { outProto.set_event_id(entry.id); }, args.eventEntry);
+    outProto.set_vsync_id(args.vsyncId);
+    outProto.set_window_id(args.windowId);
+    outProto.set_resolved_flags(args.resolvedFlags);
+
+    if (auto* motion = std::get_if<TracedMotionEvent>(&args.eventEntry); motion != nullptr) {
+        for (size_t i = 0; i < motion->pointerProperties.size(); i++) {
+            auto* pointerProto = outProto.add_dispatched_pointer();
+            pointerProto->set_pointer_id(motion->pointerProperties[i].id);
+            const auto rawXY =
+                    MotionEvent::calculateTransformedXY(motion->source, args.rawTransform,
+                                                        motion->pointerCoords[i].getXYValue());
+            pointerProto->set_x_in_display(rawXY.x);
+            pointerProto->set_y_in_display(rawXY.y);
+
+            const auto& coords = motion->pointerCoords[i];
+            const auto coordsInWindow =
+                    MotionEvent::calculateTransformedCoords(motion->source, args.transform, coords);
+            auto bits = BitSet64(coords.bits);
+            for (int32_t axisIndex = 0; !bits.isEmpty(); axisIndex++) {
+                const uint32_t axis = bits.clearFirstMarkedBit();
+                const float axisValueInWindow = coordsInWindow.values[axisIndex];
+                if (coords.values[axisIndex] != axisValueInWindow) {
+                    auto* axisEntry = pointerProto->add_axis_value_in_window();
+                    axisEntry->set_axis(axis);
+                    axisEntry->set_value(axisValueInWindow);
+                }
+            }
+        }
+    }
+}
+
+} // namespace android::inputdispatcher::trace
diff --git a/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.h b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.h
new file mode 100644
index 0000000..8a46f15
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <perfetto/trace/android/android_input_event.pbzero.h>
+
+#include "InputTracingBackendInterface.h"
+
+namespace proto = perfetto::protos::pbzero;
+
+namespace android::inputdispatcher::trace {
+
+/**
+ * Write traced events into Perfetto protos.
+ */
+class AndroidInputEventProtoConverter {
+public:
+    static void toProtoMotionEvent(const TracedMotionEvent& event,
+                                   proto::AndroidMotionEvent& outProto);
+    static void toProtoKeyEvent(const TracedKeyEvent& event, proto::AndroidKeyEvent& outProto);
+    static void toProtoWindowDispatchEvent(const InputTracingBackendInterface::WindowDispatchArgs&,
+                                           proto::AndroidWindowInputDispatchEvent& outProto);
+};
+
+} // namespace android::inputdispatcher::trace
diff --git a/services/inputflinger/dispatcher/trace/InputTracer.cpp b/services/inputflinger/dispatcher/trace/InputTracer.cpp
new file mode 100644
index 0000000..8a855c2
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/InputTracer.cpp
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputTracer"
+
+#include "InputTracer.h"
+
+#include <android-base/logging.h>
+#include <utils/AndroidThreads.h>
+
+namespace android::inputdispatcher::trace::impl {
+
+namespace {
+
+TracedEvent createTracedEvent(const MotionEntry& e) {
+    return TracedMotionEvent{e.id,
+                             e.eventTime,
+                             e.policyFlags,
+                             e.deviceId,
+                             e.source,
+                             e.displayId,
+                             e.action,
+                             e.actionButton,
+                             e.flags,
+                             e.metaState,
+                             e.buttonState,
+                             e.classification,
+                             e.edgeFlags,
+                             e.xPrecision,
+                             e.yPrecision,
+                             e.xCursorPosition,
+                             e.yCursorPosition,
+                             e.downTime,
+                             e.pointerProperties,
+                             e.pointerCoords};
+}
+
+TracedEvent createTracedEvent(const KeyEntry& e) {
+    return TracedKeyEvent{e.id,        e.eventTime, e.policyFlags, e.deviceId, e.source,
+                          e.displayId, e.action,    e.keyCode,     e.scanCode, e.metaState,
+                          e.downTime,  e.flags,     e.repeatCount};
+}
+
+} // namespace
+
+// --- InputTracer ---
+
+InputTracer::InputTracer(std::unique_ptr<InputTracingBackendInterface> backend)
+      : mTracerThread(&InputTracer::threadLoop, this), mBackend(std::move(backend)) {}
+
+InputTracer::~InputTracer() {
+    {
+        std::scoped_lock lock(mLock);
+        mThreadExit = true;
+    }
+    mThreadWakeCondition.notify_all();
+    mTracerThread.join();
+}
+
+std::unique_ptr<EventTrackerInterface> InputTracer::traceInboundEvent(const EventEntry& entry) {
+    std::scoped_lock lock(mLock);
+    TracedEvent traced;
+
+    if (entry.type == EventEntry::Type::MOTION) {
+        const auto& motion = static_cast<const MotionEntry&>(entry);
+        traced = createTracedEvent(motion);
+    } else if (entry.type == EventEntry::Type::KEY) {
+        const auto& key = static_cast<const KeyEntry&>(entry);
+        traced = createTracedEvent(key);
+    } else {
+        LOG(FATAL) << "Cannot trace EventEntry of type: " << ftl::enum_string(entry.type);
+    }
+
+    return std::make_unique<EventTrackerImpl>(*this, std::move(traced));
+}
+
+void InputTracer::dispatchToTargetHint(const EventTrackerInterface& cookie,
+                                       const InputTarget& target) {
+    std::scoped_lock lock(mLock);
+    auto& cookieState = getState(cookie);
+    if (!cookieState) {
+        LOG(FATAL) << "dispatchToTargetHint() should not be called after eventProcessingComplete()";
+    }
+    // TODO(b/210460522): Determine if the event is sensitive based on the target.
+}
+
+void InputTracer::eventProcessingComplete(const EventTrackerInterface& cookie) {
+    {
+        std::scoped_lock lock(mLock);
+        auto& cookieState = getState(cookie);
+        if (!cookieState) {
+            LOG(FATAL) << "Traced event was already logged. "
+                          "eventProcessingComplete() was likely called more than once.";
+        }
+        mTraceQueue.emplace_back(std::move(*cookieState));
+        cookieState.reset();
+    } // release lock
+
+    mThreadWakeCondition.notify_all();
+}
+
+void InputTracer::traceEventDispatch(const DispatchEntry& dispatchEntry,
+                                     const EventTrackerInterface* cookie) {
+    {
+        std::scoped_lock lock(mLock);
+        const EventEntry& entry = *dispatchEntry.eventEntry;
+
+        TracedEvent traced;
+        if (entry.type == EventEntry::Type::MOTION) {
+            const auto& motion = static_cast<const MotionEntry&>(entry);
+            traced = createTracedEvent(motion);
+        } else if (entry.type == EventEntry::Type::KEY) {
+            const auto& key = static_cast<const KeyEntry&>(entry);
+            traced = createTracedEvent(key);
+        } else {
+            LOG(FATAL) << "Cannot trace EventEntry of type: " << ftl::enum_string(entry.type);
+        }
+
+        if (!cookie) {
+            // This event was not tracked as an inbound event, so trace it now.
+            mTraceQueue.emplace_back(traced);
+        }
+
+        // The vsyncId only has meaning if the event is targeting a window.
+        const int32_t windowId = dispatchEntry.windowId.value_or(0);
+        const int32_t vsyncId = dispatchEntry.windowId.has_value() ? dispatchEntry.vsyncId : 0;
+
+        mDispatchTraceQueue.emplace_back(std::move(traced), dispatchEntry.deliveryTime,
+                                         dispatchEntry.resolvedFlags, dispatchEntry.targetUid,
+                                         vsyncId, windowId, dispatchEntry.transform,
+                                         dispatchEntry.rawTransform);
+    } // release lock
+
+    mThreadWakeCondition.notify_all();
+}
+
+std::optional<InputTracer::EventState>& InputTracer::getState(const EventTrackerInterface& cookie) {
+    return static_cast<const EventTrackerImpl&>(cookie).mLockedState;
+}
+
+void InputTracer::threadLoop() {
+    androidSetThreadName("InputTracer");
+
+    std::vector<const EventState> eventsToTrace;
+    std::vector<const WindowDispatchArgs> dispatchEventsToTrace;
+
+    while (true) {
+        { // acquire lock
+            std::unique_lock lock(mLock);
+            base::ScopedLockAssertion assumeLocked(mLock);
+
+            // Wait until we need to process more events or exit.
+            mThreadWakeCondition.wait(lock, [&]() REQUIRES(mLock) {
+                return mThreadExit || !mTraceQueue.empty() || !mDispatchTraceQueue.empty();
+            });
+            if (mThreadExit) {
+                return;
+            }
+
+            mTraceQueue.swap(eventsToTrace);
+            mDispatchTraceQueue.swap(dispatchEventsToTrace);
+        } // release lock
+
+        // Trace the events into the backend without holding the lock to reduce the amount of
+        // work performed in the critical section.
+        writeEventsToBackend(eventsToTrace, dispatchEventsToTrace);
+        eventsToTrace.clear();
+        dispatchEventsToTrace.clear();
+    }
+}
+
+void InputTracer::writeEventsToBackend(
+        const std::vector<const EventState>& events,
+        const std::vector<const WindowDispatchArgs>& dispatchEvents) {
+    for (const auto& event : events) {
+        if (auto* motion = std::get_if<TracedMotionEvent>(&event.event); motion != nullptr) {
+            mBackend->traceMotionEvent(*motion);
+        } else {
+            mBackend->traceKeyEvent(std::get<TracedKeyEvent>(event.event));
+        }
+    }
+
+    for (const auto& dispatchArgs : dispatchEvents) {
+        mBackend->traceWindowDispatch(dispatchArgs);
+    }
+}
+
+// --- InputTracer::EventTrackerImpl ---
+
+InputTracer::EventTrackerImpl::EventTrackerImpl(InputTracer& tracer, TracedEvent&& event)
+      : mTracer(tracer), mLockedState(event) {}
+
+InputTracer::EventTrackerImpl::~EventTrackerImpl() {
+    {
+        std::scoped_lock lock(mTracer.mLock);
+        if (!mLockedState) {
+            // This event has already been written to the trace as expected.
+            return;
+        }
+        // We're still holding on to the state, which means it hasn't yet been written to the trace.
+        // Write it to the trace now.
+        // TODO(b/210460522): Determine why/where the event is being destroyed before
+        //   eventProcessingComplete() is called.
+        mTracer.mTraceQueue.emplace_back(std::move(*mLockedState));
+        mLockedState.reset();
+    } // release lock
+
+    mTracer.mThreadWakeCondition.notify_all();
+}
+
+} // namespace android::inputdispatcher::trace::impl
diff --git a/services/inputflinger/dispatcher/trace/InputTracer.h b/services/inputflinger/dispatcher/trace/InputTracer.h
new file mode 100644
index 0000000..9fe395d
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/InputTracer.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "InputTracerInterface.h"
+
+#include <android-base/thread_annotations.h>
+#include <gui/WindowInfo.h>
+
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <unordered_set>
+#include <vector>
+
+#include "../Entry.h"
+#include "InputTracingBackendInterface.h"
+
+namespace android::inputdispatcher::trace::impl {
+
+/**
+ * The tracer implementation for InputDispatcher.
+ *
+ * InputTracer is thread-safe, so it can be called from any thread. Upon construction, InputTracer
+ * will start its own thread that it uses for write events into the tracing backend. That is the
+ * one and only thread that will interact with the tracing backend, since the Perfetto backend
+ * uses thread-local storage.
+ *
+ * See the documentation in InputTracerInterface for the API surface.
+ */
+class InputTracer : public InputTracerInterface {
+public:
+    explicit InputTracer(std::unique_ptr<InputTracingBackendInterface>);
+    ~InputTracer() override;
+    InputTracer(const InputTracer&) = delete;
+    InputTracer& operator=(const InputTracer&) = delete;
+
+    std::unique_ptr<EventTrackerInterface> traceInboundEvent(const EventEntry&) override;
+    void dispatchToTargetHint(const EventTrackerInterface&, const InputTarget&) override;
+    void eventProcessingComplete(const EventTrackerInterface&) override;
+    void traceEventDispatch(const DispatchEntry&, const EventTrackerInterface*) override;
+
+private:
+    std::mutex mLock;
+    std::thread mTracerThread;
+    bool mThreadExit GUARDED_BY(mLock){false};
+    std::condition_variable mThreadWakeCondition;
+    std::unique_ptr<InputTracingBackendInterface> mBackend;
+
+    // The state of a tracked event.
+    struct EventState {
+        const TracedEvent event;
+        // TODO(b/210460522): Add additional args for tracking event sensitivity and
+        //  dispatch target UIDs.
+    };
+    std::vector<const EventState> mTraceQueue GUARDED_BY(mLock);
+    using WindowDispatchArgs = InputTracingBackendInterface::WindowDispatchArgs;
+    std::vector<const WindowDispatchArgs> mDispatchTraceQueue GUARDED_BY(mLock);
+
+    // Provides thread-safe access to the state from an event tracker cookie.
+    std::optional<EventState>& getState(const EventTrackerInterface&) REQUIRES(mLock);
+
+    // Implementation of the event tracker cookie.
+    class EventTrackerImpl : public EventTrackerInterface {
+    public:
+        explicit EventTrackerImpl(InputTracer&, TracedEvent&& entry);
+        virtual ~EventTrackerImpl() override;
+
+    private:
+        InputTracer& mTracer;
+        // This event tracker cookie will only hold the state as long as it has not been written
+        // to the trace. The state is released when the event is written to the trace.
+        mutable std::optional<EventState> mLockedState;
+
+        // Only allow InputTracer access to the locked state through getTrackerState() to ensure
+        // that the InputTracer lock is held when this is accessed.
+        friend std::optional<EventState>& InputTracer::getState(const EventTrackerInterface&);
+    };
+
+    void threadLoop();
+    void writeEventsToBackend(const std::vector<const EventState>& events,
+                              const std::vector<const WindowDispatchArgs>& dispatchEvents);
+};
+
+} // namespace android::inputdispatcher::trace::impl
diff --git a/services/inputflinger/dispatcher/trace/InputTracingBackendInterface.h b/services/inputflinger/dispatcher/trace/InputTracingBackendInterface.h
index b430a5b..bc47817 100644
--- a/services/inputflinger/dispatcher/trace/InputTracingBackendInterface.h
+++ b/services/inputflinger/dispatcher/trace/InputTracingBackendInterface.h
@@ -16,11 +16,65 @@
 
 #pragma once
 
-#include "../Entry.h"
+#include <gui/PidUid.h>
+#include <input/Input.h>
+#include <ui/Transform.h>
+
+#include <array>
+#include <variant>
+#include <vector>
 
 namespace android::inputdispatcher::trace {
 
 /**
+ * A representation of an Android KeyEvent used by the tracing backend.
+ */
+struct TracedKeyEvent {
+    int32_t id;
+    nsecs_t eventTime;
+    uint32_t policyFlags;
+    int32_t deviceId;
+    uint32_t source;
+    int32_t displayId;
+    int32_t action;
+    int32_t keyCode;
+    int32_t scanCode;
+    int32_t metaState;
+    nsecs_t downTime;
+    int32_t flags;
+    int32_t repeatCount;
+};
+
+/**
+ * A representation of an Android MotionEvent used by the tracing backend.
+ */
+struct TracedMotionEvent {
+    int32_t id;
+    nsecs_t eventTime;
+    uint32_t policyFlags;
+    int32_t deviceId;
+    uint32_t source;
+    int32_t displayId;
+    int32_t action;
+    int32_t actionButton;
+    int32_t flags;
+    int32_t metaState;
+    int32_t buttonState;
+    MotionClassification classification;
+    int32_t edgeFlags;
+    float xPrecision;
+    float yPrecision;
+    float xCursorPosition;
+    float yCursorPosition;
+    nsecs_t downTime;
+    std::vector<PointerProperties> pointerProperties;
+    std::vector<PointerCoords> pointerCoords;
+};
+
+/** A representation of a traced input event. */
+using TracedEvent = std::variant<TracedKeyEvent, TracedMotionEvent>;
+
+/**
  * An interface for the tracing backend, used for setting a custom backend for testing.
  */
 class InputTracingBackendInterface {
@@ -28,14 +82,14 @@
     virtual ~InputTracingBackendInterface() = default;
 
     /** Trace a KeyEvent. */
-    virtual void traceKeyEvent(const KeyEntry&) const = 0;
+    virtual void traceKeyEvent(const TracedKeyEvent&) const = 0;
 
     /** Trace a MotionEvent. */
-    virtual void traceMotionEvent(const MotionEntry&) const = 0;
+    virtual void traceMotionEvent(const TracedMotionEvent&) const = 0;
 
     /** Trace an event being sent to a window. */
     struct WindowDispatchArgs {
-        std::variant<MotionEntry, KeyEntry> eventEntry;
+        TracedEvent eventEntry;
         nsecs_t deliveryTime;
         int32_t resolvedFlags;
         gui::Uid targetUid;
diff --git a/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.cpp b/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.cpp
new file mode 100644
index 0000000..4442ad8
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputTracer"
+
+#include "InputTracingPerfettoBackend.h"
+
+#include "AndroidInputEventProtoConverter.h"
+
+#include <android-base/logging.h>
+#include <perfetto/trace/android/android_input_event.pbzero.h>
+
+namespace android::inputdispatcher::trace::impl {
+
+namespace {
+
+constexpr auto INPUT_EVENT_TRACE_DATA_SOURCE_NAME = "android.input.inputevent";
+
+} // namespace
+
+// --- PerfettoBackend::InputEventDataSource ---
+
+void PerfettoBackend::InputEventDataSource::OnStart(const perfetto::DataSourceBase::StartArgs&) {
+    LOG(INFO) << "Starting perfetto trace for: " << INPUT_EVENT_TRACE_DATA_SOURCE_NAME;
+}
+
+void PerfettoBackend::InputEventDataSource::OnStop(const perfetto::DataSourceBase::StopArgs&) {
+    LOG(INFO) << "Stopping perfetto trace for: " << INPUT_EVENT_TRACE_DATA_SOURCE_NAME;
+    InputEventDataSource::Trace([&](InputEventDataSource::TraceContext ctx) { ctx.Flush(); });
+}
+
+// --- PerfettoBackend ---
+
+std::once_flag PerfettoBackend::sDataSourceRegistrationFlag{};
+
+PerfettoBackend::PerfettoBackend() {
+    // Use a once-flag to ensure that the data source is only registered once per boot, since
+    // we never unregister the InputEventDataSource.
+    std::call_once(sDataSourceRegistrationFlag, []() {
+        perfetto::TracingInitArgs args;
+        args.backends = perfetto::kSystemBackend;
+        perfetto::Tracing::Initialize(args);
+
+        // Register our custom data source for input event tracing.
+        perfetto::DataSourceDescriptor dsd;
+        dsd.set_name(INPUT_EVENT_TRACE_DATA_SOURCE_NAME);
+        InputEventDataSource::Register(dsd);
+        LOG(INFO) << "InputTracer initialized for data source: "
+                  << INPUT_EVENT_TRACE_DATA_SOURCE_NAME;
+    });
+}
+
+void PerfettoBackend::traceMotionEvent(const TracedMotionEvent& event) const {
+    InputEventDataSource::Trace([&](InputEventDataSource::TraceContext ctx) {
+        auto tracePacket = ctx.NewTracePacket();
+        auto* inputEvent = tracePacket->set_android_input_event();
+        auto* dispatchMotion = inputEvent->set_dispatcher_motion_event();
+        AndroidInputEventProtoConverter::toProtoMotionEvent(event, *dispatchMotion);
+    });
+}
+
+void PerfettoBackend::traceKeyEvent(const TracedKeyEvent& event) const {
+    InputEventDataSource::Trace([&](InputEventDataSource::TraceContext ctx) {
+        auto tracePacket = ctx.NewTracePacket();
+        auto* inputEvent = tracePacket->set_android_input_event();
+        auto* dispatchKey = inputEvent->set_dispatcher_key_event();
+        AndroidInputEventProtoConverter::toProtoKeyEvent(event, *dispatchKey);
+    });
+}
+
+void PerfettoBackend::traceWindowDispatch(const WindowDispatchArgs& dispatchArgs) const {
+    InputEventDataSource::Trace([&](InputEventDataSource::TraceContext ctx) {
+        auto tracePacket = ctx.NewTracePacket();
+        auto* inputEventProto = tracePacket->set_android_input_event();
+        auto* dispatchEventProto = inputEventProto->set_dispatcher_window_dispatch_event();
+        AndroidInputEventProtoConverter::toProtoWindowDispatchEvent(dispatchArgs,
+                                                                    *dispatchEventProto);
+    });
+}
+
+} // namespace android::inputdispatcher::trace::impl
diff --git a/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.h b/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.h
new file mode 100644
index 0000000..2777cfe
--- /dev/null
+++ b/services/inputflinger/dispatcher/trace/InputTracingPerfettoBackend.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "InputTracingBackendInterface.h"
+
+#include <perfetto/tracing.h>
+#include <mutex>
+
+namespace android::inputdispatcher::trace::impl {
+
+/**
+ * The tracing backend that writes events into ongoing Perfetto traces.
+ *
+ * Example shell command to take an input trace from Perfetto:
+ *
+ *   adb shell  perfetto \
+ *    -c - --txt \
+ *    -o /data/misc/perfetto-traces/trace.input-trace \
+ *    <<END
+ *    buffers: {
+ *      size_kb: 5000
+ *      fill_policy: RING_BUFFER
+ *    }
+ *    data_sources: {
+ *      config {
+ *          name: "android.input.inputevent"
+ *      }
+ *    }
+ *    END
+ */
+class PerfettoBackend : public InputTracingBackendInterface {
+public:
+    PerfettoBackend();
+    ~PerfettoBackend() override = default;
+
+    void traceKeyEvent(const TracedKeyEvent&) const override;
+    void traceMotionEvent(const TracedMotionEvent&) const override;
+    void traceWindowDispatch(const WindowDispatchArgs&) const override;
+
+    class InputEventDataSource : public perfetto::DataSource<InputEventDataSource> {
+    public:
+        void OnSetup(const SetupArgs&) override {}
+        void OnStart(const StartArgs&) override;
+        void OnStop(const StopArgs&) override;
+    };
+
+private:
+    static std::once_flag sDataSourceRegistrationFlag;
+};
+
+} // namespace android::inputdispatcher::trace::impl
diff --git a/services/inputflinger/reader/Android.bp b/services/inputflinger/reader/Android.bp
index f954370..ba586d7 100644
--- a/services/inputflinger/reader/Android.bp
+++ b/services/inputflinger/reader/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index a41064b..f3f15df 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -251,6 +251,7 @@
             mAssociatedDeviceType =
                     getValueByKey(readerConfig.deviceTypeAssociations, mIdentifier.location);
             mIsWaking = mConfiguration.getBool("device.wake").value_or(false);
+            mShouldSmoothScroll = mConfiguration.getBool("device.viewBehavior_smoothScroll");
         }
 
         if (!changes.any() || changes.test(Change::DEVICE_ALIAS)) {
@@ -401,7 +402,8 @@
 InputDeviceInfo InputDevice::getDeviceInfo() {
     InputDeviceInfo outDeviceInfo;
     outDeviceInfo.initialize(mId, mGeneration, mControllerNumber, mIdentifier, mAlias, mIsExternal,
-                             mHasMic, getAssociatedDisplayId().value_or(ADISPLAY_ID_NONE));
+                             mHasMic, getAssociatedDisplayId().value_or(ADISPLAY_ID_NONE),
+                             {mShouldSmoothScroll});
 
     for_each_mapper(
             [&outDeviceInfo](InputMapper& mapper) { mapper.populateDeviceInfo(outDeviceInfo); });
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index 0582649..9608210 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -164,19 +164,6 @@
         std::swap(notifyArgs, mPendingArgs);
     } // release lock
 
-    // Send out a message that the describes the changed input devices.
-    if (inputDevicesChanged) {
-        mPolicy->notifyInputDevicesChanged(inputDevices);
-    }
-
-    // Notify the policy of the start of every new stylus gesture outside the lock.
-    for (const auto& args : notifyArgs) {
-        const auto* motionArgs = std::get_if<NotifyMotionArgs>(&args);
-        if (motionArgs != nullptr && isStylusPointerGestureStart(*motionArgs)) {
-            mPolicy->notifyStylusGestureStarted(motionArgs->deviceId, motionArgs->eventTime);
-        }
-    }
-
     // Flush queued events out to the listener.
     // This must happen outside of the lock because the listener could potentially call
     // back into the InputReader's methods, such as getScanCodeState, or become blocked
@@ -187,6 +174,21 @@
     for (const NotifyArgs& args : notifyArgs) {
         mNextListener.notify(args);
     }
+
+    // Notify the policy that input devices have changed.
+    // This must be done after flushing events down the listener chain to ensure that the rest of
+    // the listeners are synchronized with the changes before the policy reacts to them.
+    if (inputDevicesChanged) {
+        mPolicy->notifyInputDevicesChanged(inputDevices);
+    }
+
+    // Notify the policy of the start of every new stylus gesture.
+    for (const auto& args : notifyArgs) {
+        const auto* motionArgs = std::get_if<NotifyMotionArgs>(&args);
+        if (motionArgs != nullptr && isStylusPointerGestureStart(*motionArgs)) {
+            mPolicy->notifyStylusGestureStarted(motionArgs->deviceId, motionArgs->eventTime);
+        }
+    }
 }
 
 std::list<NotifyArgs> InputReader::processEventsLocked(const RawEvent* rawEvents, size_t count) {
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index ba7234b..0719b0c 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -199,6 +199,7 @@
     std::optional<DisplayViewport> mAssociatedViewport;
     bool mHasMic;
     bool mDropUntilNextSync;
+    std::optional<bool> mShouldSmoothScroll;
 
     typedef int32_t (InputMapper::*GetStateFunc)(uint32_t sourceMask, int32_t code);
     int32_t getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc);
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index 55fc282..45f09ae 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -165,8 +165,9 @@
         configureOnChangeDisplayInfo(readerConfig);
     }
 
+    // Pointer speed settings depend on display settings.
     if (!changes.any() || changes.test(InputReaderConfiguration::Change::POINTER_SPEED) ||
-        configurePointerCapture) {
+        changes.test(InputReaderConfiguration::Change::DISPLAY_INFO) || configurePointerCapture) {
         configureOnChangePointerSpeed(readerConfig);
     }
     return out;
@@ -516,7 +517,11 @@
             mNewPointerVelocityControl.setCurve(
                     createAccelerationCurveForPointerSensitivity(config.mousePointerSpeed));
         } else {
-            mOldPointerVelocityControl.setParameters(config.pointerVelocityControlParameters);
+            mOldPointerVelocityControl.setParameters(
+                    (config.displaysWithMousePointerAccelerationDisabled.count(
+                             mDisplayId.value_or(ADISPLAY_ID_NONE)) == 0)
+                            ? config.pointerVelocityControlParameters
+                            : FLAT_VELOCITY_CONTROL_PARAMS);
         }
         mWheelXVelocityControl.setParameters(config.wheelVelocityControlParameters);
         mWheelYVelocityControl.setParameters(config.wheelVelocityControlParameters);
diff --git a/services/inputflinger/reporter/Android.bp b/services/inputflinger/reporter/Android.bp
index b1e1aee..e85a104 100644
--- a/services/inputflinger/reporter/Android.bp
+++ b/services/inputflinger/reporter/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
diff --git a/services/inputflinger/rust/lib.rs b/services/inputflinger/rust/lib.rs
index da72134..25dfb03 100644
--- a/services/inputflinger/rust/lib.rs
+++ b/services/inputflinger/rust/lib.rs
@@ -70,7 +70,9 @@
 /// incremented using `AIBinder_incStrong`. See `binder::unstable_api::new_spibinder`.
 unsafe fn create_inputflinger_rust(callback: *mut ffi::IInputFlingerRustBootstrapCallbackAIBinder) {
     logger::init(
-        logger::Config::default().with_tag_on_device(LOG_TAG).with_min_level(log::Level::Trace),
+        logger::Config::default()
+            .with_tag_on_device(LOG_TAG)
+            .with_max_level(log::LevelFilter::Trace),
     );
 
     let callback = callback as *mut AIBinder;
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index 55aa226..a26153e 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
@@ -44,6 +45,7 @@
         "EventHub_test.cpp",
         "FakeEventHub.cpp",
         "FakeInputReaderPolicy.cpp",
+        "FakeInputTracingBackend.cpp",
         "FakePointerController.cpp",
         "FocusResolver_test.cpp",
         "GestureConverter_test.cpp",
diff --git a/services/inputflinger/tests/CursorInputMapper_test.cpp b/services/inputflinger/tests/CursorInputMapper_test.cpp
index 7b793d8..8c17221 100644
--- a/services/inputflinger/tests/CursorInputMapper_test.cpp
+++ b/services/inputflinger/tests/CursorInputMapper_test.cpp
@@ -105,7 +105,7 @@
 class ViewportFakingInputDeviceContext : public InputDeviceContext {
 public:
     ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     DisplayViewport viewport)
+                                     std::optional<DisplayViewport> viewport)
           : InputDeviceContext(device, eventHubId), mAssociatedViewport(viewport) {}
 
     ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
@@ -117,10 +117,12 @@
         return mAssociatedViewport;
     }
 
-    void setViewport(const DisplayViewport& viewport) { mAssociatedViewport = viewport; }
+    void setViewport(const std::optional<DisplayViewport>& viewport) {
+        mAssociatedViewport = viewport;
+    }
 
 private:
-    DisplayViewport mAssociatedViewport;
+    std::optional<DisplayViewport> mAssociatedViewport;
 };
 
 } // namespace
@@ -1355,6 +1357,45 @@
     args += process(ARBITRARY_TIME, EV_REL, REL_Y, 20);
     args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(AllOf(WithMotionAction(HOVER_MOVE),
+                                                                WithDisplayId(DISPLAY_ID),
+                                                                WithRelativeMotion(10, 20)))));
+}
+
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, ConfigureAccelerationOnDisplayChange) {
+    mPropertyMap.addProperty("cursor.mode", "pointer");
+    DisplayViewport primaryViewport = createPrimaryViewport(ui::Rotation::Rotation0);
+    mReaderConfiguration.setDisplayViewports({primaryViewport});
+    // Disable acceleration for the display.
+    mReaderConfiguration.displaysWithMousePointerAccelerationDisabled.emplace(DISPLAY_ID);
+    createDevice();
+
+    // Don't associate the device with the display yet.
+    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID,
+                                                   /*viewport=*/std::nullopt);
+    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+
+    // Verify that acceleration is being applied by default by checking that the movement is scaled.
+    args += process(ARBITRARY_TIME, EV_REL, REL_X, 10);
+    args += process(ARBITRARY_TIME, EV_REL, REL_Y, 20);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(args, ElementsAre(VariantWith<NotifyMotionArgs>(WithMotionAction(HOVER_MOVE))));
+    const auto& coords = get<NotifyMotionArgs>(args.back()).pointerCoords[0];
+    ASSERT_GT(coords.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X), 10.f);
+    ASSERT_GT(coords.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y), 20.f);
+
+    // Now associate the device with the display, and verify that acceleration is disabled.
+    deviceContext.setViewport(primaryViewport);
+    args += mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
+                                 InputReaderConfiguration::Change::DISPLAY_INFO);
+    args.clear();
+
+    args += process(ARBITRARY_TIME, EV_REL, REL_X, 10);
+    args += process(ARBITRARY_TIME, EV_REL, REL_Y, 20);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(args,
                 ElementsAre(VariantWith<NotifyMotionArgs>(
                         AllOf(WithMotionAction(HOVER_MOVE), WithDisplayId(DISPLAY_ID),
                               WithRelativeMotion(10, 20)))));
diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.cpp b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
index 88f514f..9e93712 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
@@ -41,15 +41,21 @@
 }
 
 void FakeInputReaderPolicy::assertStylusGestureNotified(int32_t deviceId) {
-    std::scoped_lock lock(mLock);
-    ASSERT_TRUE(mStylusGestureNotified);
-    ASSERT_EQ(deviceId, *mStylusGestureNotified);
-    mStylusGestureNotified.reset();
+    std::unique_lock lock(mLock);
+    base::ScopedLockAssertion assumeLocked(mLock);
+
+    const bool success =
+            mStylusGestureNotifiedCondition.wait_for(lock, WAIT_TIMEOUT, [this]() REQUIRES(mLock) {
+                return mDeviceIdOfNotifiedStylusGesture.has_value();
+            });
+    ASSERT_TRUE(success) << "Timed out waiting for stylus gesture to be notified";
+    ASSERT_EQ(deviceId, *mDeviceIdOfNotifiedStylusGesture);
+    mDeviceIdOfNotifiedStylusGesture.reset();
 }
 
 void FakeInputReaderPolicy::assertStylusGestureNotNotified() {
     std::scoped_lock lock(mLock);
-    ASSERT_FALSE(mStylusGestureNotified);
+    ASSERT_FALSE(mDeviceIdOfNotifiedStylusGesture);
 }
 
 void FakeInputReaderPolicy::clearViewports() {
@@ -258,7 +264,8 @@
 
 void FakeInputReaderPolicy::notifyStylusGestureStarted(int32_t deviceId, nsecs_t eventTime) {
     std::scoped_lock lock(mLock);
-    mStylusGestureNotified = deviceId;
+    mDeviceIdOfNotifiedStylusGesture = deviceId;
+    mStylusGestureNotifiedCondition.notify_all();
 }
 
 std::optional<DisplayViewport> FakeInputReaderPolicy::getPointerViewportForAssociatedDisplay(
diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.h b/services/inputflinger/tests/FakeInputReaderPolicy.h
index 4ef9c3e..da5085d 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.h
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.h
@@ -102,9 +102,11 @@
     bool mInputDevicesChanged GUARDED_BY(mLock){false};
     std::vector<DisplayViewport> mViewports;
     TouchAffineTransformation transform;
-    std::optional<int32_t /*deviceId*/> mStylusGestureNotified GUARDED_BY(mLock){};
     bool mIsInputMethodConnectionActive{false};
 
+    std::condition_variable mStylusGestureNotifiedCondition;
+    std::optional<DeviceId> mDeviceIdOfNotifiedStylusGesture GUARDED_BY(mLock){};
+
     uint32_t mNextPointerCaptureSequenceNumber{0};
 };
 
diff --git a/services/inputflinger/tests/FakeInputTracingBackend.cpp b/services/inputflinger/tests/FakeInputTracingBackend.cpp
new file mode 100644
index 0000000..1d27107
--- /dev/null
+++ b/services/inputflinger/tests/FakeInputTracingBackend.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "FakeInputTracingBackend.h"
+
+#include <android-base/logging.h>
+#include <utils/Errors.h>
+
+namespace android::inputdispatcher {
+
+namespace {
+
+// Use a larger timeout while waiting for events to be traced, compared to the timeout used while
+// waiting to receive events through the input channel. Events are traced from a separate thread,
+// which does not have the same high thread priority as the InputDispatcher's thread, so the tracer
+// is expected to lag behind the Dispatcher at times.
+constexpr auto TRACE_TIMEOUT = std::chrono::seconds(5);
+
+base::ResultError<> error(const std::ostringstream& ss) {
+    return base::ResultError(ss.str(), BAD_VALUE);
+}
+
+} // namespace
+
+// --- VerifyingTrace ---
+
+void VerifyingTrace::expectKeyDispatchTraced(const KeyEvent& event) {
+    std::scoped_lock lock(mLock);
+    mExpectedEvents.emplace_back(event);
+}
+
+void VerifyingTrace::expectMotionDispatchTraced(const MotionEvent& event) {
+    std::scoped_lock lock(mLock);
+    mExpectedEvents.emplace_back(event);
+}
+
+void VerifyingTrace::verifyExpectedEventsTraced() {
+    std::unique_lock lock(mLock);
+    base::ScopedLockAssertion assumeLocked(mLock);
+
+    base::Result<void> result;
+    mEventTracedCondition.wait_for(lock, TRACE_TIMEOUT, [&]() REQUIRES(mLock) {
+        for (const auto& expectedEvent : mExpectedEvents) {
+            std::visit([&](const auto& event)
+                               REQUIRES(mLock) { result = verifyEventTraced(event); },
+                       expectedEvent);
+            if (!result.ok()) {
+                return false;
+            }
+        }
+        return true;
+    });
+
+    EXPECT_TRUE(result.ok())
+            << "Timed out waiting for all expected events to be traced successfully: "
+            << result.error().message();
+}
+
+void VerifyingTrace::reset() {
+    std::scoped_lock lock(mLock);
+    mTracedEvents.clear();
+    mExpectedEvents.clear();
+}
+
+template <typename Event>
+base::Result<void> VerifyingTrace::verifyEventTraced(const Event& expectedEvent) const {
+    std::ostringstream msg;
+
+    auto tracedEventsIt = mTracedEvents.find(expectedEvent.getId());
+    if (tracedEventsIt == mTracedEvents.end()) {
+        msg << "Expected event with ID 0x" << std::hex << expectedEvent.getId()
+            << " to be traced, but it was not.\n"
+            << "Expected event: " << expectedEvent;
+        return error(msg);
+    }
+
+    return {};
+}
+
+// --- FakeInputTracingBackend ---
+
+void FakeInputTracingBackend::traceKeyEvent(const trace::TracedKeyEvent& event) const {
+    {
+        std::scoped_lock lock(mTrace->mLock);
+        mTrace->mTracedEvents.emplace(event.id);
+    }
+    mTrace->mEventTracedCondition.notify_all();
+}
+
+void FakeInputTracingBackend::traceMotionEvent(const trace::TracedMotionEvent& event) const {
+    {
+        std::scoped_lock lock(mTrace->mLock);
+        mTrace->mTracedEvents.emplace(event.id);
+    }
+    mTrace->mEventTracedCondition.notify_all();
+}
+
+} // namespace android::inputdispatcher
diff --git a/services/inputflinger/tests/FakeInputTracingBackend.h b/services/inputflinger/tests/FakeInputTracingBackend.h
new file mode 100644
index 0000000..e5dd546
--- /dev/null
+++ b/services/inputflinger/tests/FakeInputTracingBackend.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "../dispatcher/trace/InputTracingBackendInterface.h"
+
+#include <android-base/result.h>
+#include <android-base/thread_annotations.h>
+#include <gtest/gtest.h>
+#include <input/Input.h>
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <unordered_set>
+#include <vector>
+
+namespace android::inputdispatcher {
+
+/**
+ * A class representing an input trace, used to make assertions on what was traced by
+ * InputDispatcher in tests. This class is thread-safe.
+ */
+class VerifyingTrace {
+public:
+    VerifyingTrace() = default;
+
+    /** Add an expectation for a key event to be traced. */
+    void expectKeyDispatchTraced(const KeyEvent& event);
+
+    /** Add an expectation for a motion event to be traced. */
+    void expectMotionDispatchTraced(const MotionEvent& event);
+
+    /**
+     * Wait and verify that all expected events are traced.
+     * This is a lenient verifier that does not expect the events to be traced in the order
+     * that the events were expected, and does not fail if there are events that are traced that
+     * were not expected. Verifying does not clear the expectations.
+     */
+    void verifyExpectedEventsTraced();
+
+    /** Reset the trace and clear all expectations. */
+    void reset();
+
+private:
+    std::mutex mLock;
+    std::condition_variable mEventTracedCondition;
+    std::unordered_set<uint32_t /*eventId*/> mTracedEvents GUARDED_BY(mLock);
+    std::vector<std::variant<KeyEvent, MotionEvent>> mExpectedEvents GUARDED_BY(mLock);
+
+    friend class FakeInputTracingBackend;
+
+    // Helper to verify that the given event appears as expected in the trace. If the verification
+    // fails, the error message describes why.
+    template <typename Event>
+    base::Result<void> verifyEventTraced(const Event&) const REQUIRES(mLock);
+};
+
+/**
+ * A backend implementation for input tracing that records events to the provided
+ * VerifyingTrace used for testing.
+ */
+class FakeInputTracingBackend : public trace::InputTracingBackendInterface {
+public:
+    FakeInputTracingBackend(std::shared_ptr<VerifyingTrace> trace) : mTrace(trace) {}
+
+private:
+    std::shared_ptr<VerifyingTrace> mTrace;
+
+    void traceKeyEvent(const trace::TracedKeyEvent& entry) const override;
+    void traceMotionEvent(const trace::TracedMotionEvent& entry) const override;
+    void traceWindowDispatch(const WindowDispatchArgs& entry) const override {}
+};
+
+} // namespace android::inputdispatcher
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 094e957..31c7c67 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -17,6 +17,7 @@
 #include "../dispatcher/InputDispatcher.h"
 #include "../BlockingQueue.h"
 #include "FakeApplicationHandle.h"
+#include "FakeInputTracingBackend.h"
 #include "TestEventMatchers.h"
 
 #include <NotifyArgsBuilders.h>
@@ -154,7 +155,7 @@
 class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {
     struct AnrResult {
         sp<IBinder> token{};
-        gui::Pid pid{gui::Pid::INVALID};
+        std::optional<gui::Pid> pid{};
     };
     /* Stores data about a user-activity-poke event from the dispatcher. */
     struct UserActivityPokeEvent {
@@ -259,7 +260,7 @@
 
     void assertNotifyWindowUnresponsiveWasCalled(std::chrono::nanoseconds timeout,
                                                  const sp<IBinder>& expectedToken,
-                                                 gui::Pid expectedPid) {
+                                                 std::optional<gui::Pid> expectedPid) {
         std::unique_lock lock(mLock);
         android::base::ScopedLockAssertion assumeLocked(mLock);
         AnrResult result;
@@ -279,7 +280,7 @@
     }
 
     void assertNotifyWindowResponsiveWasCalled(const sp<IBinder>& expectedToken,
-                                               gui::Pid expectedPid) {
+                                               std::optional<gui::Pid> expectedPid) {
         std::unique_lock lock(mLock);
         android::base::ScopedLockAssertion assumeLocked(mLock);
         AnrResult result;
@@ -363,6 +364,8 @@
         mInterceptKeyTimeout = timeout;
     }
 
+    std::chrono::nanoseconds getKeyWaitingForEventsTimeout() override { return 500ms; }
+
     void setStaleEventTimeout(std::chrono::nanoseconds timeout) { mStaleEventTimeout = timeout; }
 
     void assertUserActivityNotPoked() {
@@ -521,16 +524,14 @@
     void notifyWindowUnresponsive(const sp<IBinder>& connectionToken, std::optional<gui::Pid> pid,
                                   const std::string&) override {
         std::scoped_lock lock(mLock);
-        ASSERT_TRUE(pid.has_value());
-        mAnrWindows.push({connectionToken, *pid});
+        mAnrWindows.push({connectionToken, pid});
         mNotifyAnr.notify_all();
     }
 
     void notifyWindowResponsive(const sp<IBinder>& connectionToken,
                                 std::optional<gui::Pid> pid) override {
         std::scoped_lock lock(mLock);
-        ASSERT_TRUE(pid.has_value());
-        mResponsiveWindows.push({connectionToken, *pid});
+        mResponsiveWindows.push({connectionToken, pid});
         mNotifyAnr.notify_all();
     }
 
@@ -658,14 +659,22 @@
 
 // --- InputDispatcherTest ---
 
+// The trace is a global variable for now, to avoid having to pass it into all of the
+// FakeWindowHandles created throughout the tests.
+// TODO(b/210460522): Update the tests to avoid the need to have the trace be a global variable.
+static std::shared_ptr<VerifyingTrace> gVerifyingTrace = std::make_shared<VerifyingTrace>();
+
 class InputDispatcherTest : public testing::Test {
 protected:
     std::unique_ptr<FakeInputDispatcherPolicy> mFakePolicy;
     std::unique_ptr<InputDispatcher> mDispatcher;
 
     void SetUp() override {
+        gVerifyingTrace->reset();
         mFakePolicy = std::make_unique<FakeInputDispatcherPolicy>();
-        mDispatcher = std::make_unique<InputDispatcher>(*mFakePolicy);
+        mDispatcher = std::make_unique<InputDispatcher>(*mFakePolicy,
+                                                        std::make_unique<FakeInputTracingBackend>(
+                                                                gVerifyingTrace));
 
         mDispatcher->setInputDispatchMode(/*enabled=*/true, /*frozen=*/false);
         // Start InputDispatcher thread
@@ -673,6 +682,7 @@
     }
 
     void TearDown() override {
+        ASSERT_NO_FATAL_FAILURE(gVerifyingTrace->verifyExpectedEventsTraced());
         ASSERT_EQ(OK, mDispatcher->stop());
         mFakePolicy.reset();
         mDispatcher.reset();
@@ -1083,8 +1093,8 @@
         EXPECT_EQ(inTouchMode, touchModeEvent.isInTouchMode());
     }
 
-    void assertNoEvents() {
-        std::unique_ptr<InputEvent> event = consume(CONSUME_TIMEOUT_NO_EVENT_EXPECTED);
+    void assertNoEvents(std::chrono::milliseconds timeout) {
+        std::unique_ptr<InputEvent> event = consume(timeout);
         if (event == nullptr) {
             return;
         }
@@ -1113,7 +1123,7 @@
 
     sp<IBinder> getToken() { return mConsumer.getChannel()->getConnectionToken(); }
 
-    int getChannelFd() { return mConsumer.getChannel()->getFd().get(); }
+    int getChannelFd() { return mConsumer.getChannel()->getFd(); }
 
 private:
     InputConsumer mConsumer;
@@ -1395,11 +1405,7 @@
     }
 
     std::pair<std::optional<uint32_t>, std::unique_ptr<InputEvent>> receiveEvent() {
-        if (mInputReceiver == nullptr) {
-            ADD_FAILURE() << "Invalid receive event on window with no receiver";
-            return std::make_pair(std::nullopt, nullptr);
-        }
-        return mInputReceiver->receiveEvent(CONSUME_TIMEOUT_EVENT_EXPECTED);
+        return receive();
     }
 
     void finishEvent(uint32_t sequenceNum) {
@@ -1412,14 +1418,14 @@
         mInputReceiver->sendTimeline(inputEventId, timeline);
     }
 
-    void assertNoEvents() {
+    void assertNoEvents(std::chrono::milliseconds timeout = CONSUME_TIMEOUT_NO_EVENT_EXPECTED) {
         if (mInputReceiver == nullptr &&
             mInfo.inputConfig.test(WindowInfo::InputConfig::NO_INPUT_CHANNEL)) {
             return; // Can't receive events if the window does not have input channel
         }
         ASSERT_NE(nullptr, mInputReceiver)
                 << "Window without InputReceiver must specify feature NO_INPUT_CHANNEL";
-        mInputReceiver->assertNoEvents();
+        mInputReceiver->assertNoEvents(timeout);
     }
 
     sp<IBinder> getToken() { return mInfo.token; }
@@ -1437,13 +1443,7 @@
 
     int getChannelFd() { return mInputReceiver->getChannelFd(); }
 
-private:
-    FakeWindowHandle(std::string name) : mName(name){};
-    const std::string mName;
-    std::shared_ptr<FakeInputReceiver> mInputReceiver;
-    static std::atomic<int32_t> sId; // each window gets a unique id, like in surfaceflinger
-    friend class sp<FakeWindowHandle>;
-
+    // FakeWindowHandle uses this consume method to ensure received events are added to the trace.
     std::unique_ptr<InputEvent> consume(std::chrono::milliseconds timeout, bool handled = true) {
         if (mInputReceiver == nullptr) {
             LOG(FATAL) << "Cannot consume event from a window with no input event receiver";
@@ -1452,8 +1452,47 @@
         if (event == nullptr) {
             ADD_FAILURE() << "Consume failed: no event";
         }
+        expectReceivedEventTraced(event);
         return event;
     }
+
+private:
+    FakeWindowHandle(std::string name) : mName(name){};
+    const std::string mName;
+    std::shared_ptr<FakeInputReceiver> mInputReceiver;
+    static std::atomic<int32_t> sId; // each window gets a unique id, like in surfaceflinger
+    friend class sp<FakeWindowHandle>;
+
+    // FakeWindowHandle uses this receive method to ensure received events are added to the trace.
+    std::pair<std::optional<uint32_t /*seq*/>, std::unique_ptr<InputEvent>> receive() {
+        if (mInputReceiver == nullptr) {
+            ADD_FAILURE() << "Invalid receive event on window with no receiver";
+            return std::make_pair(std::nullopt, nullptr);
+        }
+        auto out = mInputReceiver->receiveEvent(CONSUME_TIMEOUT_EVENT_EXPECTED);
+        const auto& [_, event] = out;
+        expectReceivedEventTraced(event);
+        return std::move(out);
+    }
+
+    void expectReceivedEventTraced(const std::unique_ptr<InputEvent>& event) {
+        if (!event) {
+            return;
+        }
+
+        switch (event->getType()) {
+            case InputEventType::KEY: {
+                gVerifyingTrace->expectKeyDispatchTraced(static_cast<KeyEvent&>(*event));
+                break;
+            }
+            case InputEventType::MOTION: {
+                gVerifyingTrace->expectMotionDispatchTraced(static_cast<MotionEvent&>(*event));
+                break;
+            }
+            default:
+                break;
+        }
+    }
 };
 
 std::atomic<int32_t> FakeWindowHandle::sId{1};
@@ -1512,7 +1551,7 @@
 
     std::unique_ptr<MotionEvent> consumeMotion() { return mInputReceiver.consumeMotion(); }
 
-    void assertNoEvents() { mInputReceiver.assertNoEvents(); }
+    void assertNoEvents() { mInputReceiver.assertNoEvents(CONSUME_TIMEOUT_NO_EVENT_EXPECTED); }
 
 private:
     FakeInputReceiver mInputReceiver;
@@ -5777,27 +5816,27 @@
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
 
     // Window should receive motion event.
-    firstWindowInPrimary->consumeMotionDown(SECOND_DISPLAY_ID);
+    firstWindowInSecondary->consumeMotionDown(SECOND_DISPLAY_ID);
 
     // Transfer touch focus
     ASSERT_TRUE(mDispatcher->transferTouch(secondWindowInSecondary->getToken(), SECOND_DISPLAY_ID));
 
     // The first window gets cancel.
-    firstWindowInPrimary->consumeMotionCancel(SECOND_DISPLAY_ID);
-    secondWindowInPrimary->consumeMotionDown(SECOND_DISPLAY_ID);
+    firstWindowInSecondary->consumeMotionCancel(SECOND_DISPLAY_ID);
+    secondWindowInSecondary->consumeMotionDown(SECOND_DISPLAY_ID);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 SECOND_DISPLAY_ID, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    firstWindowInPrimary->assertNoEvents();
-    secondWindowInPrimary->consumeMotionMove(SECOND_DISPLAY_ID);
+    firstWindowInSecondary->assertNoEvents();
+    secondWindowInSecondary->consumeMotionMove(SECOND_DISPLAY_ID);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, SECOND_DISPLAY_ID, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    firstWindowInPrimary->assertNoEvents();
-    secondWindowInPrimary->consumeMotionUp(SECOND_DISPLAY_ID);
+    firstWindowInSecondary->assertNoEvents();
+    secondWindowInSecondary->consumeMotionUp(SECOND_DISPLAY_ID);
 }
 
 TEST_F(InputDispatcherTest, FocusedWindow_ReceivesFocusEventAndKeyEvent) {
@@ -7261,7 +7300,7 @@
     mWindow->assertNoEvents();
 }
 
-TEST_F(InputDispatcherFallbackKeyTest, WindowRemovedDuringPolicyCall) {
+TEST_F(InputDispatcherFallbackKeyTest, InputChannelRemovedDuringPolicyCall) {
     setFallback(AKEYCODE_B);
     mDispatcher->notifyKey(
             KeyArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_KEYBOARD).keyCode(AKEYCODE_A).build());
@@ -7294,6 +7333,71 @@
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertUnhandledKeyReported(AKEYCODE_A));
 }
 
+TEST_F(InputDispatcherFallbackKeyTest, WindowRemovedDuringPolicyCall) {
+    setFallback(AKEYCODE_B);
+    mDispatcher->notifyKey(
+            KeyArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_KEYBOARD).keyCode(AKEYCODE_A).build());
+
+    // Do not handle this key event.
+    consumeKey(/*handled=*/false,
+               AllOf(WithKeyAction(ACTION_DOWN), WithKeyCode(AKEYCODE_A), WithFlags(0)));
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertUnhandledKeyReported(AKEYCODE_A));
+    consumeKey(/*handled=*/true,
+               AllOf(WithKeyAction(ACTION_DOWN), WithKeyCode(AKEYCODE_B),
+                     WithFlags(AKEY_EVENT_FLAG_FALLBACK)));
+
+    mFakePolicy->setUnhandledKeyHandler([&](const KeyEvent& event) {
+        // When the unhandled key is reported to the policy next, remove the window.
+        mDispatcher->onWindowInfosChanged({{}, {}, 0, 0});
+        return KeyEventBuilder(event).keyCode(AKEYCODE_B).build();
+    });
+    // Release the original key, which the app will not handle. When this unhandled key is reported
+    // to the policy, the window will be removed.
+    mDispatcher->notifyKey(
+            KeyArgsBuilder(ACTION_UP, AINPUT_SOURCE_KEYBOARD).keyCode(AKEYCODE_A).build());
+    consumeKey(/*handled=*/false,
+               AllOf(WithKeyAction(ACTION_UP), WithKeyCode(AKEYCODE_A), WithFlags(0)));
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertUnhandledKeyReported(AKEYCODE_A));
+
+    // Since the window was removed, it loses focus, and the channel state will be reset.
+    consumeKey(/*handled=*/true,
+               AllOf(WithKeyAction(ACTION_UP), WithKeyCode(AKEYCODE_B),
+                     WithFlags(AKEY_EVENT_FLAG_FALLBACK | AKEY_EVENT_FLAG_CANCELED)));
+    mWindow->consumeFocusEvent(false);
+    mWindow->assertNoEvents();
+}
+
+TEST_F(InputDispatcherFallbackKeyTest, WindowRemovedWhileAwaitingFinishedSignal) {
+    setFallback(AKEYCODE_B);
+    mDispatcher->notifyKey(
+            KeyArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_KEYBOARD).keyCode(AKEYCODE_A).build());
+
+    // Do not handle this key event.
+    consumeKey(/*handled=*/false,
+               AllOf(WithKeyAction(ACTION_DOWN), WithKeyCode(AKEYCODE_A), WithFlags(0)));
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertUnhandledKeyReported(AKEYCODE_A));
+    const auto [seq, event] = mWindow->receiveEvent();
+    ASSERT_TRUE(seq.has_value() && event != nullptr) << "Failed to receive fallback event";
+    ASSERT_EQ(event->getType(), InputEventType::KEY);
+    ASSERT_THAT(static_cast<const KeyEvent&>(*event),
+                AllOf(WithKeyAction(ACTION_DOWN), WithKeyCode(AKEYCODE_B),
+                      WithFlags(AKEY_EVENT_FLAG_FALLBACK)));
+
+    // Remove the window now, which should generate a cancellations and make the window lose focus.
+    mDispatcher->onWindowInfosChanged({{}, {}, 0, 0});
+    consumeKey(/*handled=*/true,
+               AllOf(WithKeyAction(ACTION_UP), WithKeyCode(AKEYCODE_A),
+                     WithFlags(AKEY_EVENT_FLAG_CANCELED)));
+    consumeKey(/*handled=*/true,
+               AllOf(WithKeyAction(ACTION_UP), WithKeyCode(AKEYCODE_B),
+                     WithFlags(AKEY_EVENT_FLAG_FALLBACK | AKEY_EVENT_FLAG_CANCELED)));
+    mWindow->consumeFocusEvent(false);
+
+    // Finish the event by reporting it as handled.
+    mWindow->finishEvent(*seq);
+    mWindow->assertNoEvents();
+}
+
 class InputDispatcherKeyRepeatTest : public InputDispatcherTest {
 protected:
     static constexpr std::chrono::nanoseconds KEY_REPEAT_TIMEOUT = 40ms;
@@ -7303,12 +7407,9 @@
     sp<FakeWindowHandle> mWindow;
 
     virtual void SetUp() override {
-        mFakePolicy = std::make_unique<FakeInputDispatcherPolicy>();
-        mDispatcher = std::make_unique<InputDispatcher>(*mFakePolicy);
-        mDispatcher->setInputDispatchMode(/*enabled=*/true, /*frozen=*/false);
-        mDispatcher->setKeyRepeatConfiguration(KEY_REPEAT_TIMEOUT, KEY_REPEAT_DELAY);
-        ASSERT_EQ(OK, mDispatcher->start());
+        InputDispatcherTest::SetUp();
 
+        mDispatcher->setKeyRepeatConfiguration(KEY_REPEAT_TIMEOUT, KEY_REPEAT_DELAY);
         setUpWindow();
     }
 
@@ -8226,13 +8327,13 @@
         }
     }
 
-    void touchAndAssertPositions(int32_t action, const std::vector<PointF>& touchedPoints,
+    void touchAndAssertPositions(sp<FakeWindowHandle> touchedWindow, int32_t action,
+                                 const std::vector<PointF>& touchedPoints,
                                  std::vector<PointF> expectedPoints) {
         mDispatcher->notifyMotion(generateMotionArgs(action, AINPUT_SOURCE_TOUCHSCREEN,
                                                      ADISPLAY_ID_DEFAULT, touchedPoints));
 
-        // Always consume from window1 since it's the window that has the InputReceiver
-        consumeMotionEvent(mWindow1, action, expectedPoints);
+        consumeMotionEvent(touchedWindow, action, expectedPoints);
     }
 };
 
@@ -8240,15 +8341,15 @@
     // Touch Window 1
     PointF touchedPoint = {10, 10};
     PointF expectedPoint = getPointInWindow(mWindow1->getInfo(), touchedPoint);
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
 
     // Release touch on Window 1
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
 
     // Touch Window 2
     touchedPoint = {150, 150};
     expectedPoint = getPointInWindow(mWindow2->getInfo(), touchedPoint);
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow2, AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
 }
 
 TEST_F(InputDispatcherMultiWindowSameTokenTests, SingleTouchDifferentTransform) {
@@ -8259,21 +8360,21 @@
     // Touch Window 1
     PointF touchedPoint = {10, 10};
     PointF expectedPoint = getPointInWindow(mWindow1->getInfo(), touchedPoint);
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
     // Release touch on Window 1
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
 
     // Touch Window 2
     touchedPoint = {150, 150};
     expectedPoint = getPointInWindow(mWindow2->getInfo(), touchedPoint);
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow2, AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow2, AMOTION_EVENT_ACTION_UP, {touchedPoint}, {expectedPoint});
 
     // Update the transform so rotation is set
     mWindow2->setWindowTransform(0, -1, 1, 0);
     mDispatcher->onWindowInfosChanged({{*mWindow1->getInfo(), *mWindow2->getInfo()}, {}, 0, 0});
     expectedPoint = getPointInWindow(mWindow2->getInfo(), touchedPoint);
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
+    touchAndAssertPositions(mWindow2, AMOTION_EVENT_ACTION_DOWN, {touchedPoint}, {expectedPoint});
 }
 
 TEST_F(InputDispatcherMultiWindowSameTokenTests, MultipleTouchDifferentTransform) {
@@ -8283,22 +8384,25 @@
     // Touch Window 1
     std::vector<PointF> touchedPoints = {PointF{10, 10}};
     std::vector<PointF> expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0])};
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
 
     // Touch Window 2
+    // Since this is part of the same touch gesture that has already been dispatched to Window 1,
+    // the touch stream from Window 2 will be merged with the stream in Window 1. The merged stream
+    // will continue to be dispatched through Window 1.
     touchedPoints.push_back(PointF{150, 150});
     expectedPoints.push_back(getPointInWindow(mWindow2->getInfo(), touchedPoints[1]));
-    touchAndAssertPositions(POINTER_1_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_DOWN, touchedPoints, expectedPoints);
 
     // Release Window 2
-    touchAndAssertPositions(POINTER_1_UP, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_UP, touchedPoints, expectedPoints);
     expectedPoints.pop_back();
 
     // Update the transform so rotation is set for Window 2
     mWindow2->setWindowTransform(0, -1, 1, 0);
     mDispatcher->onWindowInfosChanged({{*mWindow1->getInfo(), *mWindow2->getInfo()}, {}, 0, 0});
     expectedPoints.push_back(getPointInWindow(mWindow2->getInfo(), touchedPoints[1]));
-    touchAndAssertPositions(POINTER_1_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_DOWN, touchedPoints, expectedPoints);
 }
 
 TEST_F(InputDispatcherMultiWindowSameTokenTests, MultipleTouchMoveDifferentTransform) {
@@ -8308,37 +8412,37 @@
     // Touch Window 1
     std::vector<PointF> touchedPoints = {PointF{10, 10}};
     std::vector<PointF> expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0])};
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
 
     // Touch Window 2
     touchedPoints.push_back(PointF{150, 150});
     expectedPoints.push_back(getPointInWindow(mWindow2->getInfo(), touchedPoints[1]));
 
-    touchAndAssertPositions(POINTER_1_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_DOWN, touchedPoints, expectedPoints);
 
     // Move both windows
     touchedPoints = {{20, 20}, {175, 175}};
     expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0]),
                       getPointInWindow(mWindow2->getInfo(), touchedPoints[1])};
 
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
 
     // Release Window 2
-    touchAndAssertPositions(POINTER_1_UP, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_UP, touchedPoints, expectedPoints);
     expectedPoints.pop_back();
 
     // Touch Window 2
     mWindow2->setWindowTransform(0, -1, 1, 0);
     mDispatcher->onWindowInfosChanged({{*mWindow1->getInfo(), *mWindow2->getInfo()}, {}, 0, 0});
     expectedPoints.push_back(getPointInWindow(mWindow2->getInfo(), touchedPoints[1]));
-    touchAndAssertPositions(POINTER_1_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_DOWN, touchedPoints, expectedPoints);
 
     // Move both windows
     touchedPoints = {{20, 20}, {175, 175}};
     expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0]),
                       getPointInWindow(mWindow2->getInfo(), touchedPoints[1])};
 
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
 }
 
 TEST_F(InputDispatcherMultiWindowSameTokenTests, MultipleWindowsFirstTouchWithScale) {
@@ -8348,20 +8452,20 @@
     // Touch Window 1
     std::vector<PointF> touchedPoints = {PointF{10, 10}};
     std::vector<PointF> expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0])};
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_DOWN, touchedPoints, expectedPoints);
 
     // Touch Window 2
     touchedPoints.push_back(PointF{150, 150});
     expectedPoints.push_back(getPointInWindow(mWindow2->getInfo(), touchedPoints[1]));
 
-    touchAndAssertPositions(POINTER_1_DOWN, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, POINTER_1_DOWN, touchedPoints, expectedPoints);
 
     // Move both windows
     touchedPoints = {{20, 20}, {175, 175}};
     expectedPoints = {getPointInWindow(mWindow1->getInfo(), touchedPoints[0]),
                       getPointInWindow(mWindow2->getInfo(), touchedPoints[1])};
 
-    touchAndAssertPositions(AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
+    touchAndAssertPositions(mWindow1, AMOTION_EVENT_ACTION_MOVE, touchedPoints, expectedPoints);
 }
 
 /**
@@ -8405,7 +8509,7 @@
                                       .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(150))
                                       .build());
     consumeMotionEvent(mWindow1, ACTION_HOVER_EXIT, {{50, 50}});
-    consumeMotionEvent(mWindow1, ACTION_HOVER_ENTER,
+    consumeMotionEvent(mWindow2, ACTION_HOVER_ENTER,
                        {getPointInWindow(mWindow2->getInfo(), PointF{150, 150})});
 }
 
@@ -8827,16 +8931,11 @@
 /**
  * If a window is processing a motion event, and then a key event comes in, the key event should
  * not get delivered to the focused window until the motion is processed.
- *
- * Warning!!!
- * This test depends on the value of android::inputdispatcher::KEY_WAITING_FOR_MOTION_TIMEOUT
- * and the injection timeout that we specify when injecting the key.
- * We must have the injection timeout (100ms) be smaller than
- *  KEY_WAITING_FOR_MOTION_TIMEOUT (currently 500ms).
- *
- * If that value changes, this test should also change.
  */
 TEST_F(InputDispatcherSingleWindowAnr, Key_StaysPendingWhileMotionIsProcessed) {
+    // The timeouts in this test are established by relying on the fact that the "key waiting for
+    // events timeout" is equal to 500ms.
+    ASSERT_EQ(mFakePolicy->getKeyWaitingForEventsTimeout(), 500ms);
     mWindow->setDispatchingTimeout(2s); // Set a long ANR timeout to prevent it from triggering
     mDispatcher->onWindowInfosChanged({{*mWindow->getInfo()}, {}, 0, 0});
 
@@ -8845,23 +8944,18 @@
     ASSERT_TRUE(downSequenceNum);
     const auto& [upSequenceNum, upEvent] = mWindow->receiveEvent();
     ASSERT_TRUE(upSequenceNum);
-    // Don't finish the events yet, and send a key
-    // Injection will "succeed" because we will eventually give up and send the key to the focused
-    // window even if motions are still being processed. But because the injection timeout is short,
-    // we will receive INJECTION_TIMED_OUT as the result.
 
-    InputEventInjectionResult result =
-            injectKey(*mDispatcher, AKEY_EVENT_ACTION_DOWN, /*repeatCount=*/0, ADISPLAY_ID_DEFAULT,
-                      InputEventInjectionSync::WAIT_FOR_RESULT, 100ms);
-    ASSERT_EQ(InputEventInjectionResult::TIMED_OUT, result);
+    // Don't finish the events yet, and send a key
+    mDispatcher->notifyKey(
+            KeyArgsBuilder(AKEY_EVENT_ACTION_DOWN, AINPUT_SOURCE_KEYBOARD)
+                    .policyFlags(DEFAULT_POLICY_FLAGS | POLICY_FLAG_DISABLE_KEY_REPEAT)
+                    .build());
     // Key will not be sent to the window, yet, because the window is still processing events
     // and the key remains pending, waiting for the touch events to be processed
     // Make sure that `assertNoEvents` doesn't wait too long, because it could cause an ANR.
-    // Rely here on the fact that it uses CONSUME_TIMEOUT_NO_EVENT_EXPECTED under the hood.
-    static_assert(CONSUME_TIMEOUT_NO_EVENT_EXPECTED < 100ms);
-    mWindow->assertNoEvents();
+    mWindow->assertNoEvents(100ms);
 
-    std::this_thread::sleep_for(500ms);
+    std::this_thread::sleep_for(400ms);
     // if we wait long enough though, dispatcher will give up, and still send the key
     // to the focused window, even though we have not yet finished the motion event
     mWindow->consumeKeyDown(ADISPLAY_ID_DEFAULT);
@@ -8876,7 +8970,10 @@
  * focused window right away.
  */
 TEST_F(InputDispatcherSingleWindowAnr,
-       PendingKey_IsDroppedWhileMotionIsProcessedAndNewTouchComesIn) {
+       PendingKey_IsDeliveredWhileMotionIsProcessingAndNewTouchComesIn) {
+    // The timeouts in this test are established by relying on the fact that the "key waiting for
+    // events timeout" is equal to 500ms.
+    ASSERT_EQ(mFakePolicy->getKeyWaitingForEventsTimeout(), 500ms);
     mWindow->setDispatchingTimeout(2s); // Set a long ANR timeout to prevent it from triggering
     mDispatcher->onWindowInfosChanged({{*mWindow->getInfo()}, {}, 0, 0});
 
@@ -8891,15 +8988,19 @@
                     .policyFlags(DEFAULT_POLICY_FLAGS | POLICY_FLAG_DISABLE_KEY_REPEAT)
                     .build());
     // At this point, key is still pending, and should not be sent to the application yet.
-    // Make sure the `assertNoEvents` check doesn't take too long. It uses
-    // CONSUME_TIMEOUT_NO_EVENT_EXPECTED under the hood.
-    static_assert(CONSUME_TIMEOUT_NO_EVENT_EXPECTED < 100ms);
-    mWindow->assertNoEvents();
+    mWindow->assertNoEvents(100ms);
 
     // Now tap down again. It should cause the pending key to go to the focused window right away.
     tapOnWindow();
-    mWindow->consumeKeyEvent(WithKeyAction(AKEY_EVENT_ACTION_DOWN)); // it doesn't matter that we
-    // haven't ack'd the other events yet. We can finish events in any order.
+    // Now that we tapped, we should receive the key immediately.
+    // Since there's still room for slowness, we use 200ms, which is much less than
+    // the "key waiting for events' timeout of 500ms minus the already waited 100ms duration.
+    std::unique_ptr<InputEvent> keyEvent = mWindow->consume(200ms);
+    ASSERT_NE(nullptr, keyEvent);
+    ASSERT_EQ(InputEventType::KEY, keyEvent->getType());
+    ASSERT_THAT(static_cast<KeyEvent&>(*keyEvent), WithKeyAction(AKEY_EVENT_ACTION_DOWN));
+    // it doesn't matter that we haven't ack'd the other events yet. We can finish events in any
+    // order.
     mWindow->finishEvent(*downSequenceNum); // first tap's ACTION_DOWN
     mWindow->finishEvent(*upSequenceNum);   // first tap's ACTION_UP
     mWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
@@ -8956,6 +9057,61 @@
     mWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
 }
 
+// Send an event to the app and have the app not respond right away. Then remove the app window.
+// When the window is removed, the dispatcher will cancel the events for that window.
+// So InputDispatcher will enqueue ACTION_CANCEL event as well.
+TEST_F(InputDispatcherSingleWindowAnr, AnrAfterWindowRemoval) {
+    mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_DOWN,
+                                                 AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
+                                                 {WINDOW_LOCATION}));
+
+    const auto [sequenceNum, _] = mWindow->receiveEvent(); // ACTION_DOWN
+    ASSERT_TRUE(sequenceNum);
+
+    // Remove the window, but the input channel should remain alive.
+    mDispatcher->onWindowInfosChanged({{}, {}, 0, 0});
+
+    const std::chrono::duration timeout = mWindow->getDispatchingTimeout(DISPATCHING_TIMEOUT);
+    // Since the window was removed, Dispatcher does not know the PID associated with the window
+    // anymore, so the policy is notified without the PID.
+    mFakePolicy->assertNotifyWindowUnresponsiveWasCalled(timeout, mWindow->getToken(),
+                                                         /*pid=*/std::nullopt);
+
+    mWindow->finishEvent(*sequenceNum);
+    // The cancellation was generated when the window was removed, along with the focus event.
+    mWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_CANCEL), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    mWindow->consumeFocusEvent(false);
+    ASSERT_TRUE(mDispatcher->waitForIdle());
+    mFakePolicy->assertNotifyWindowResponsiveWasCalled(mWindow->getToken(), /*pid=*/std::nullopt);
+}
+
+// Send an event to the app and have the app not respond right away. Wait for the policy to be
+// notified of the unresponsive window, then remove the app window.
+TEST_F(InputDispatcherSingleWindowAnr, AnrFollowedByWindowRemoval) {
+    mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_DOWN,
+                                                 AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
+                                                 {WINDOW_LOCATION}));
+
+    const auto [sequenceNum, _] = mWindow->receiveEvent(); // ACTION_DOWN
+    ASSERT_TRUE(sequenceNum);
+    const std::chrono::duration timeout = mWindow->getDispatchingTimeout(DISPATCHING_TIMEOUT);
+    mFakePolicy->assertNotifyWindowUnresponsiveWasCalled(timeout, mWindow);
+
+    // Remove the window, but the input channel should remain alive.
+    mDispatcher->onWindowInfosChanged({{}, {}, 0, 0});
+
+    mWindow->finishEvent(*sequenceNum);
+    // The cancellation was generated during the ANR, and the window lost focus when it was removed.
+    mWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_CANCEL), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    mWindow->consumeFocusEvent(false);
+    ASSERT_TRUE(mDispatcher->waitForIdle());
+    // Since the window was removed, Dispatcher does not know the PID associated with the window
+    // becoming responsive, so the policy is notified without the PID.
+    mFakePolicy->assertNotifyWindowResponsiveWasCalled(mWindow->getToken(), /*pid=*/std::nullopt);
+}
+
 class InputDispatcherMultiWindowAnr : public InputDispatcherTest {
     virtual void SetUp() override {
         InputDispatcherTest::SetUp();
@@ -9547,7 +9703,7 @@
 TEST_F(InputDispatcherMirrorWindowFocusTests, FocusedIfAllWindowsFocusable) {
     setFocusedWindow(mMirror);
 
-    // window gets focused
+    // window gets focused because it is above the mirror
     mWindow->consumeFocusEvent(true);
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED, injectKeyDown(*mDispatcher))
             << "Inject key event should return InputEventInjectionResult::SUCCEEDED";
@@ -9620,10 +9776,10 @@
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED, injectKeyDown(*mDispatcher))
             << "Inject key event should return InputEventInjectionResult::SUCCEEDED";
-    mWindow->consumeKeyDown(ADISPLAY_ID_NONE);
+    mMirror->consumeKeyDown(ADISPLAY_ID_NONE);
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED, injectKeyUp(*mDispatcher))
             << "Inject key event should return InputEventInjectionResult::SUCCEEDED";
-    mWindow->consumeKeyUp(ADISPLAY_ID_NONE);
+    mMirror->consumeKeyUp(ADISPLAY_ID_NONE);
 
     // Both windows are removed
     mDispatcher->onWindowInfosChanged({{}, {}, 0, 0});
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 460a7b1..c1dc7ff 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -2706,6 +2706,31 @@
     ASSERT_NO_FATAL_FAILURE(mapper2.assertProcessWasCalled());
 }
 
+TEST_F(InputDeviceTest, Configure_SmoothScrollViewBehaviorNotSet) {
+    // Set some behavior to force the configuration to be update.
+    mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.wake", "1");
+    mDevice->addMapper<FakeInputMapper>(EVENTHUB_ID, mFakePolicy->getReaderConfiguration(),
+                                        AINPUT_SOURCE_KEYBOARD);
+
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    ASSERT_FALSE(mDevice->getDeviceInfo().getViewBehavior().shouldSmoothScroll.has_value());
+}
+
+TEST_F(InputDeviceTest, Configure_SmoothScrollViewBehaviorEnabled) {
+    mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.viewBehavior_smoothScroll", "1");
+    mDevice->addMapper<FakeInputMapper>(EVENTHUB_ID, mFakePolicy->getReaderConfiguration(),
+                                        AINPUT_SOURCE_KEYBOARD);
+
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               /*changes=*/{});
+
+    ASSERT_TRUE(mDevice->getDeviceInfo().getViewBehavior().shouldSmoothScroll.value_or(false));
+}
+
 TEST_F(InputDeviceTest, WakeDevice_AddsWakeFlagToProcessNotifyArgs) {
     mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.wake", "1");
     FakeInputMapper& mapper =
diff --git a/services/inputflinger/tests/fuzzers/Android.bp b/services/inputflinger/tests/fuzzers/Android.bp
index 8a4f6f0..81c3353 100644
--- a/services/inputflinger/tests/fuzzers/Android.bp
+++ b/services/inputflinger/tests/fuzzers/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_input_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
index 9e35717..575a30e 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
@@ -97,13 +97,13 @@
     MOCK_CONST_METHOD1(isConnected, bool(PhysicalDisplayId));
     MOCK_CONST_METHOD2(getModes,
                        std::vector<HWComposer::HWCDisplayMode>(PhysicalDisplayId, int32_t));
-    MOCK_CONST_METHOD1(getActiveMode, std::optional<hal::HWConfigId>(PhysicalDisplayId));
+    MOCK_CONST_METHOD1(getActiveMode, ftl::Expected<hal::HWConfigId, status_t>(PhysicalDisplayId));
     MOCK_CONST_METHOD1(getColorModes, std::vector<ui::ColorMode>(PhysicalDisplayId));
     MOCK_METHOD3(setActiveColorMode, status_t(PhysicalDisplayId, ui::ColorMode, ui::RenderIntent));
     MOCK_CONST_METHOD0(isUsingVrComposer, bool());
     MOCK_CONST_METHOD1(getDisplayConnectionType, ui::DisplayConnectionType(PhysicalDisplayId));
     MOCK_CONST_METHOD1(isVsyncPeriodSwitchSupported, bool(PhysicalDisplayId));
-    MOCK_CONST_METHOD2(getDisplayVsyncPeriod, status_t(PhysicalDisplayId, nsecs_t*));
+    MOCK_CONST_METHOD1(getDisplayVsyncPeriod, ftl::Expected<nsecs_t, status_t>(PhysicalDisplayId));
     MOCK_METHOD4(setActiveModeWithConstraints,
                  status_t(PhysicalDisplayId, hal::HWConfigId,
                           const hal::VsyncPeriodChangeConstraints&,
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 4f81482..5f20cd9 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -239,10 +239,8 @@
         return 0;
     }
 
-    nsecs_t vsyncPeriod;
-    const auto status = mHwComposer.getDisplayVsyncPeriod(physicalId, &vsyncPeriod);
-    if (status == NO_ERROR) {
-        return vsyncPeriod;
+    if (const auto vsyncPeriodOpt = mHwComposer.getDisplayVsyncPeriod(physicalId).value_opt()) {
+        return *vsyncPeriodOpt;
     }
 
     return refreshRateSelector().getActiveMode().modePtr->getVsyncRate().getPeriodNsecs();
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 17f6f31..362ab9c 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -343,7 +343,9 @@
     }
 
     mAidlComposerCallback = ndk::SharedRefBase::make<AidlIComposerCallbackWrapper>(callback);
-    AIBinder_setMinSchedulerPolicy(mAidlComposerCallback->asBinder().get(), SCHED_FIFO, 2);
+
+    ndk::SpAIBinder binder = mAidlComposerCallback->asBinder();
+    AIBinder_setMinSchedulerPolicy(binder.get(), SCHED_FIFO, 2);
 
     const auto status = mAidlComposerClient->registerCallback(mAidlComposerCallback);
     if (!status.isOk()) {
diff --git a/services/surfaceflinger/DisplayHardware/DisplayMode.h b/services/surfaceflinger/DisplayHardware/DisplayMode.h
index ba0825c..224f50e 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayMode.h
+++ b/services/surfaceflinger/DisplayHardware/DisplayMode.h
@@ -21,17 +21,17 @@
 
 #include <android-base/stringprintf.h>
 #include <android/configuration.h>
+#include <ftl/mixins.h>
 #include <ftl/small_map.h>
 #include <ui/DisplayId.h>
 #include <ui/DisplayMode.h>
 #include <ui/Size.h>
 #include <utils/Timers.h>
 
+#include <common/FlagManager.h>
 #include <scheduler/Fps.h>
 
-#include <common/FlagManager.h>
 #include "DisplayHardware/Hal.h"
-#include "Scheduler/StrongTyping.h"
 
 namespace android {
 
@@ -46,7 +46,12 @@
 bool operator<=(const DisplayModePtr&, const DisplayModePtr&) = delete;
 bool operator>=(const DisplayModePtr&, const DisplayModePtr&) = delete;
 
-using DisplayModeId = StrongTyping<ui::DisplayModeId, struct DisplayModeIdTag, Compare>;
+struct DisplayModeId : ftl::DefaultConstructible<DisplayModeId, ui::DisplayModeId>,
+                       ftl::Incrementable<DisplayModeId>,
+                       ftl::Equatable<DisplayModeId>,
+                       ftl::Orderable<DisplayModeId> {
+    using DefaultConstructible::DefaultConstructible;
+};
 
 using DisplayModes = ftl::SmallMap<DisplayModeId, DisplayModePtr, 3>;
 using DisplayModeIterator = DisplayModes::const_iterator;
@@ -185,7 +190,7 @@
 inline std::string to_string(const DisplayMode& mode) {
     return base::StringPrintf("{id=%d, hwcId=%d, resolution=%dx%d, vsyncRate=%s, "
                               "dpi=%.2fx%.2f, group=%d, vrrConfig=%s}",
-                              mode.getId().value(), mode.getHwcId(), mode.getWidth(),
+                              ftl::to_underlying(mode.getId()), mode.getHwcId(), mode.getWidth(),
                               mode.getHeight(), to_string(mode.getVsyncRate()).c_str(),
                               mode.getDpi().x, mode.getDpi().y, mode.getGroup(),
                               to_string(mode.getVrrConfig()).c_str());
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index cf1c3c1..bac24c7 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -343,14 +343,18 @@
     return modes;
 }
 
-std::optional<hal::HWConfigId> HWComposer::getActiveMode(PhysicalDisplayId displayId) const {
-    RETURN_IF_INVALID_DISPLAY(displayId, std::nullopt);
+ftl::Expected<hal::HWConfigId, status_t> HWComposer::getActiveMode(
+        PhysicalDisplayId displayId) const {
+    RETURN_IF_INVALID_DISPLAY(displayId, ftl::Unexpected(BAD_INDEX));
     const auto hwcId = *fromPhysicalDisplayId(displayId);
 
     hal::HWConfigId configId;
     const auto error = static_cast<hal::Error>(mComposer->getActiveConfig(hwcId, &configId));
+    if (error == hal::Error::BAD_CONFIG) {
+        return ftl::Unexpected(NO_INIT);
+    }
 
-    RETURN_IF_HWC_ERROR_FOR("getActiveConfig", error, displayId, std::nullopt);
+    RETURN_IF_HWC_ERROR_FOR("getActiveConfig", error, displayId, ftl::Unexpected(UNKNOWN_ERROR));
     return configId;
 }
 
@@ -376,20 +380,20 @@
     return mDisplayData.at(displayId).hwcDisplay->isVsyncPeriodSwitchSupported();
 }
 
-status_t HWComposer::getDisplayVsyncPeriod(PhysicalDisplayId displayId,
-                                           nsecs_t* outVsyncPeriod) const {
-    RETURN_IF_INVALID_DISPLAY(displayId, 0);
+ftl::Expected<nsecs_t, status_t> HWComposer::getDisplayVsyncPeriod(
+        PhysicalDisplayId displayId) const {
+    RETURN_IF_INVALID_DISPLAY(displayId, ftl::Unexpected(BAD_INDEX));
 
     if (!isVsyncPeriodSwitchSupported(displayId)) {
-        return INVALID_OPERATION;
+        return ftl::Unexpected(INVALID_OPERATION);
     }
+
     const auto hwcId = *fromPhysicalDisplayId(displayId);
     Hwc2::VsyncPeriodNanos vsyncPeriodNanos = 0;
-    auto error =
+    const auto error =
             static_cast<hal::Error>(mComposer->getDisplayVsyncPeriod(hwcId, &vsyncPeriodNanos));
-    RETURN_IF_HWC_ERROR(error, displayId, 0);
-    *outVsyncPeriod = static_cast<nsecs_t>(vsyncPeriodNanos);
-    return NO_ERROR;
+    RETURN_IF_HWC_ERROR(error, displayId, ftl::Unexpected(UNKNOWN_ERROR));
+    return static_cast<nsecs_t>(vsyncPeriodNanos);
 }
 
 std::vector<ui::ColorMode> HWComposer::getColorModes(PhysicalDisplayId displayId) const {
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index fb32ff4..7fbbb1a 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -25,6 +25,7 @@
 #include <vector>
 
 #include <android-base/thread_annotations.h>
+#include <ftl/expected.h>
 #include <ftl/future.h>
 #include <ui/DisplayIdentification.h>
 #include <ui/FenceTime.h>
@@ -237,7 +238,7 @@
     virtual std::vector<HWCDisplayMode> getModes(PhysicalDisplayId,
                                                  int32_t maxFrameIntervalNs) const = 0;
 
-    virtual std::optional<hal::HWConfigId> getActiveMode(PhysicalDisplayId) const = 0;
+    virtual ftl::Expected<hal::HWConfigId, status_t> getActiveMode(PhysicalDisplayId) const = 0;
 
     virtual std::vector<ui::ColorMode> getColorModes(PhysicalDisplayId) const = 0;
 
@@ -247,8 +248,7 @@
     // Composer 2.4
     virtual ui::DisplayConnectionType getDisplayConnectionType(PhysicalDisplayId) const = 0;
     virtual bool isVsyncPeriodSwitchSupported(PhysicalDisplayId) const = 0;
-    virtual status_t getDisplayVsyncPeriod(PhysicalDisplayId displayId,
-                                           nsecs_t* outVsyncPeriod) const = 0;
+    virtual ftl::Expected<nsecs_t, status_t> getDisplayVsyncPeriod(PhysicalDisplayId) const = 0;
     virtual status_t setActiveModeWithConstraints(PhysicalDisplayId, hal::HWConfigId,
                                                   const hal::VsyncPeriodChangeConstraints&,
                                                   hal::VsyncPeriodChangeTimeline* outTimeline) = 0;
@@ -424,7 +424,7 @@
     std::vector<HWCDisplayMode> getModes(PhysicalDisplayId,
                                          int32_t maxFrameIntervalNs) const override;
 
-    std::optional<hal::HWConfigId> getActiveMode(PhysicalDisplayId) const override;
+    ftl::Expected<hal::HWConfigId, status_t> getActiveMode(PhysicalDisplayId) const override;
 
     std::vector<ui::ColorMode> getColorModes(PhysicalDisplayId) const override;
 
@@ -435,8 +435,7 @@
     // Composer 2.4
     ui::DisplayConnectionType getDisplayConnectionType(PhysicalDisplayId) const override;
     bool isVsyncPeriodSwitchSupported(PhysicalDisplayId) const override;
-    status_t getDisplayVsyncPeriod(PhysicalDisplayId displayId,
-                                   nsecs_t* outVsyncPeriod) const override;
+    ftl::Expected<nsecs_t, status_t> getDisplayVsyncPeriod(PhysicalDisplayId) const override;
     status_t setActiveModeWithConstraints(PhysicalDisplayId, hal::HWConfigId,
                                           const hal::VsyncPeriodChangeConstraints&,
                                           hal::VsyncPeriodChangeTimeline* outTimeline) override;
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
index 38974a2..3ef9e69 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
@@ -315,6 +315,7 @@
     if (obj.hasInputInfo()) {
         out << "\n    input{"
             << "(" << obj.inputInfo.inputConfig.string() << ")";
+        if (obj.inputInfo.canOccludePresentation) out << " canOccludePresentation";
         if (obj.touchCropId != UNASSIGNED_LAYER_ID) out << " touchCropId=" << obj.touchCropId;
         if (obj.inputInfo.replaceTouchableRegionWithCrop) out << " replaceTouchableRegionWithCrop";
         auto touchableRegion = obj.inputInfo.touchableRegion.getBounds();
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index 8df5d8c..0966fe0 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -1044,6 +1044,8 @@
     snapshot.inputInfo.touchOcclusionMode = requested.hasInputInfo()
             ? requested.windowInfoHandle->getInfo()->touchOcclusionMode
             : parentSnapshot.inputInfo.touchOcclusionMode;
+    snapshot.inputInfo.canOccludePresentation = parentSnapshot.inputInfo.canOccludePresentation ||
+            (requested.flags & layer_state_t::eCanOccludePresentation);
     if (requested.dropInputMode == gui::DropInputMode::ALL ||
         parentSnapshot.dropInputMode == gui::DropInputMode::ALL) {
         snapshot.dropInputMode = gui::DropInputMode::ALL;
diff --git a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
index 209df79..2cf4c1b 100644
--- a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
+++ b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
@@ -170,6 +170,9 @@
         if ((oldFlags ^ flags) & layer_state_t::eIgnoreDestinationFrame) {
             changes |= RequestedLayerState::Changes::Geometry;
         }
+        if ((oldFlags ^ flags) & layer_state_t::eCanOccludePresentation) {
+            changes |= RequestedLayerState::Changes::Input;
+        }
     }
 
     if (clientState.what & layer_state_t::eBufferChanged) {
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index c80c8fd..96eccf2 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -148,7 +148,7 @@
     DisplayEventReceiver::Event event;
     event.header = {DisplayEventReceiver::DISPLAY_EVENT_MODE_CHANGE,
                     mode.modePtr->getPhysicalDisplayId(), systemTime()};
-    event.modeChange.modeId = mode.modePtr->getId().value();
+    event.modeChange.modeId = ftl::to_underlying(mode.modePtr->getId());
     event.modeChange.vsyncPeriod = mode.fps.getPeriodNsecs();
     return event;
 }
@@ -404,6 +404,9 @@
     }();
     generateFrameTimeline(vsyncEventData, frameInterval.ns(), systemTime(SYSTEM_TIME_MONOTONIC),
                           presentTime, deadline);
+    if (FlagManager::getInstance().vrr_config()) {
+        mCallback.onExpectedPresentTimePosted(TimePoint::fromNs(presentTime));
+    }
     return vsyncEventData;
 }
 
@@ -721,6 +724,11 @@
                 removeDisplayEventConnectionLocked(consumer);
         }
     }
+    if (event.header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC &&
+        FlagManager::getInstance().vrr_config()) {
+        mCallback.onExpectedPresentTimePosted(
+                TimePoint::fromNs(event.vsync.vsyncData.preferredExpectedPresentationTime()));
+    }
 }
 
 void EventThread::dump(std::string& result) const {
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index 8970103..90e61a9 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -142,6 +142,7 @@
     virtual bool throttleVsync(TimePoint, uid_t) = 0;
     virtual Period getVsyncPeriod(uid_t) = 0;
     virtual void resync() = 0;
+    virtual void onExpectedPresentTimePosted(TimePoint) = 0;
 };
 
 namespace impl {
diff --git a/services/surfaceflinger/Scheduler/ISchedulerCallback.h b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
index 3b61de7..9f4f5b6 100644
--- a/services/surfaceflinger/Scheduler/ISchedulerCallback.h
+++ b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
@@ -30,6 +30,8 @@
     virtual void kernelTimerChanged(bool expired) = 0;
     virtual void triggerOnFrameRateOverridesChanged() = 0;
     virtual void onChoreographerAttached() = 0;
+    virtual void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>,
+                                             Fps renderRate) = 0;
 
 protected:
     ~ISchedulerCallback() = default;
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.cpp b/services/surfaceflinger/Scheduler/LayerHistory.cpp
index 5ce883c..dcb6254 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistory.cpp
@@ -221,9 +221,8 @@
             const std::string categoryString = vote.category == FrameRateCategory::Default
                     ? ""
                     : base::StringPrintf("category=%s", ftl::enum_string(vote.category).c_str());
-            ATRACE_FORMAT_INSTANT("%s %s %s (%d%)", ftl::enum_string(vote.type).c_str(),
-                                  to_string(vote.fps).c_str(), categoryString.c_str(),
-                                  weight * 100);
+            ATRACE_FORMAT_INSTANT("%s %s %s (%.2f)", ftl::enum_string(vote.type).c_str(),
+                                  to_string(vote.fps).c_str(), categoryString.c_str(), weight);
             summary.push_back({info->getName(), info->getOwnerUid(), vote.type, vote.fps,
                                vote.seamlessness, vote.category, vote.categorySmoothSwitchOnly,
                                weight, layerFocused});
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index 7614453..e696e8c 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -286,7 +286,8 @@
 std::string RefreshRateSelector::Policy::toString() const {
     return base::StringPrintf("{defaultModeId=%d, allowGroupSwitching=%s"
                               ", primaryRanges=%s, appRequestRanges=%s}",
-                              defaultMode.value(), allowGroupSwitching ? "true" : "false",
+                              ftl::to_underlying(defaultMode),
+                              allowGroupSwitching ? "true" : "false",
                               to_string(primaryRanges).c_str(),
                               to_string(appRequestRanges).c_str());
 }
@@ -854,7 +855,7 @@
         ALOGV("Touch Boost");
         ATRACE_FORMAT_INSTANT("%s (Touch Boost [late])",
                               to_string(touchRefreshRates.front().frameRateMode.fps).c_str());
-        return {touchRefreshRates, GlobalSignals{.touch = signals.touch}};
+        return {touchRefreshRates, GlobalSignals{.touch = true}};
     }
 
     // If we never scored any layers, and we don't favor high refresh rates, prefer to stay with the
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.h b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
index a1a7c28..6051e89 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
@@ -31,7 +31,6 @@
 
 #include "DisplayHardware/DisplayMode.h"
 #include "Scheduler/OneShotTimer.h"
-#include "Scheduler/StrongTyping.h"
 #include "ThreadContext.h"
 #include "Utils/Dumper.h"
 
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index c76d4bd..6979f03 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -71,15 +71,13 @@
 namespace android::scheduler {
 
 Scheduler::Scheduler(ICompositor& compositor, ISchedulerCallback& callback, FeatureFlags features,
-                     surfaceflinger::Factory& factory, Fps activeRefreshRate, TimeStats& timeStats,
-                     IVsyncTrackerCallback& vsyncTrackerCallback)
+                     surfaceflinger::Factory& factory, Fps activeRefreshRate, TimeStats& timeStats)
       : android::impl::MessageQueue(compositor),
         mFeatures(features),
         mVsyncConfiguration(factory.createVsyncConfiguration(activeRefreshRate)),
         mVsyncModulator(sp<VsyncModulator>::make(mVsyncConfiguration->getCurrentConfigs())),
         mRefreshRateStats(std::make_unique<RefreshRateStats>(timeStats, activeRefreshRate)),
-        mSchedulerCallback(callback),
-        mVsyncTrackerCallback(vsyncTrackerCallback) {}
+        mSchedulerCallback(callback) {}
 
 Scheduler::~Scheduler() {
     // MessageQueue depends on VsyncSchedule, so first destroy it.
@@ -134,10 +132,11 @@
 }
 
 void Scheduler::registerDisplay(PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr) {
-    auto schedulePtr = std::make_shared<VsyncSchedule>(
-            selectorPtr->getActiveMode().modePtr, mFeatures,
-            [this](PhysicalDisplayId id, bool enable) { onHardwareVsyncRequest(id, enable); },
-            mVsyncTrackerCallback);
+    auto schedulePtr =
+            std::make_shared<VsyncSchedule>(selectorPtr->getActiveMode().modePtr, mFeatures,
+                                            [this](PhysicalDisplayId id, bool enable) {
+                                                onHardwareVsyncRequest(id, enable);
+                                            });
 
     registerDisplayInternal(displayId, std::move(selectorPtr), std::move(schedulePtr));
 }
@@ -222,7 +221,12 @@
             targets.try_emplace(id, &targeter.target());
         }
 
-        if (!compositor.commit(pacesetterPtr->displayId, targets)) return;
+        if (!compositor.commit(pacesetterPtr->displayId, targets)) {
+            if (FlagManager::getInstance().vrr_config()) {
+                compositor.sendNotifyExpectedPresentHint(pacesetterPtr->displayId);
+            }
+            return;
+        }
     }
 
     // The pacesetter may have changed or been registered anew during commit.
@@ -263,6 +267,9 @@
     }
 
     const auto resultsPerDisplay = compositor.composite(pacesetterPtr->displayId, targeters);
+    if (FlagManager::getInstance().vrr_config()) {
+        compositor.sendNotifyExpectedPresentHint(pacesetterPtr->displayId);
+    }
     compositor.sample();
 
     for (const auto& [id, targeter] : targeters) {
@@ -323,6 +330,19 @@
     // behaviour.
     return Period::fromNs(currentPeriod.ns() * divisor);
 }
+void Scheduler::onExpectedPresentTimePosted(TimePoint expectedPresentTime) {
+    const auto frameRateMode = [this] {
+        std::scoped_lock lock(mDisplayLock);
+        const auto pacesetterOpt = pacesetterDisplayLocked();
+        const Display& pacesetter = *pacesetterOpt;
+        return pacesetter.selectorPtr->getActiveMode();
+    }();
+
+    if (frameRateMode.modePtr->getVrrConfig()) {
+        mSchedulerCallback.onExpectedPresentTimePosted(expectedPresentTime, frameRateMode.modePtr,
+                                                       frameRateMode.fps);
+    }
+}
 
 ConnectionHandle Scheduler::createEventThread(Cycle cycle,
                                               frametimeline::TokenManager* tokenManager,
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 9912622..9f29e9f 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -111,7 +111,7 @@
 
 public:
     Scheduler(ICompositor&, ISchedulerCallback&, FeatureFlags, surfaceflinger::Factory&,
-              Fps activeRefreshRate, TimeStats&, IVsyncTrackerCallback&);
+              Fps activeRefreshRate, TimeStats&);
     virtual ~Scheduler();
 
     void startTimers();
@@ -458,6 +458,7 @@
     bool throttleVsync(TimePoint, uid_t) override;
     Period getVsyncPeriod(uid_t) override EXCLUDES(mDisplayLock);
     void resync() override EXCLUDES(mDisplayLock);
+    void onExpectedPresentTimePosted(TimePoint expectedPresentTime) override EXCLUDES(mDisplayLock);
 
     // Stores EventThread associated with a given VSyncSource, and an initial EventThreadConnection.
     struct Connection {
@@ -497,8 +498,6 @@
 
     ISchedulerCallback& mSchedulerCallback;
 
-    IVsyncTrackerCallback& mVsyncTrackerCallback;
-
     // mDisplayLock may be locked while under mPolicyLock.
     mutable std::mutex mPolicyLock;
 
diff --git a/services/surfaceflinger/Scheduler/StrongTyping.h b/services/surfaceflinger/Scheduler/StrongTyping.h
deleted file mode 100644
index a05c123..0000000
--- a/services/surfaceflinger/Scheduler/StrongTyping.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-namespace android {
-
-template <typename T, template <typename> class AbilityType>
-struct Ability {
-    T& base() { return static_cast<T&>(*this); }
-    T const& base() const { return static_cast<T const&>(*this); }
-};
-
-template <typename T>
-struct Add : Ability<T, Add> {
-    inline T operator+(T const& other) const { return T(this->base().value() + other.value()); }
-    inline T& operator++() {
-        ++this->base().value();
-        return this->base();
-    };
-    inline T operator++(int) {
-        T tmp(this->base());
-        operator++();
-        return tmp;
-    };
-    inline T& operator+=(T const& other) {
-        this->base().value() += other.value();
-        return this->base();
-    };
-};
-
-template <typename T>
-struct Compare : Ability<T, Compare> {
-    inline bool operator==(T const& other) const { return this->base().value() == other.value(); };
-    inline bool operator<(T const& other) const { return this->base().value() < other.value(); }
-    inline bool operator<=(T const& other) const { return (*this < other) || (*this == other); }
-    inline bool operator!=(T const& other) const { return !(*this == other); }
-    inline bool operator>=(T const& other) const { return !(*this < other); }
-    inline bool operator>(T const& other) const { return !(*this < other || *this == other); }
-};
-
-template <typename T>
-struct Hash : Ability<T, Hash> {
-    [[nodiscard]] std::size_t hash() const {
-        return std::hash<typename std::remove_const<
-                typename std::remove_reference<decltype(this->base().value())>::type>::type>{}(
-                this->base().value());
-    }
-};
-
-template <typename T, typename W, template <typename> class... Ability>
-struct StrongTyping : Ability<StrongTyping<T, W, Ability...>>... {
-    constexpr StrongTyping() = default;
-    constexpr explicit StrongTyping(T const& value) : mValue(value) {}
-    StrongTyping(StrongTyping const&) = default;
-    StrongTyping& operator=(StrongTyping const&) = default;
-    explicit inline operator T() const { return mValue; }
-    T const& value() const { return mValue; }
-    T& value() { return mValue; }
-
-    friend std::ostream& operator<<(std::ostream& os, const StrongTyping<T, W, Ability...>& value) {
-        return os << value.value();
-    }
-
-private:
-    T mValue{0};
-};
-} // namespace android
-
-namespace std {
-template <typename T, typename W, template <typename> class... Ability>
-struct hash<android::StrongTyping<T, W, Ability...>> {
-    std::size_t operator()(android::StrongTyping<T, W, Ability...> const& k) const {
-        return k.hash();
-    }
-};
-} // namespace std
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatch.h b/services/surfaceflinger/Scheduler/VSyncDispatch.h
index f978016..ed8f8fe 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatch.h
+++ b/services/surfaceflinger/Scheduler/VSyncDispatch.h
@@ -20,10 +20,9 @@
 #include <optional>
 #include <string>
 
+#include <ftl/mixins.h>
 #include <utils/Timers.h>
 
-#include "StrongTyping.h"
-
 namespace android::scheduler {
 
 using ScheduleResult = std::optional<nsecs_t>;
@@ -35,7 +34,11 @@
  */
 class VSyncDispatch {
 public:
-    using CallbackToken = StrongTyping<size_t, class CallbackTokenTag, Compare, Hash>;
+    struct CallbackToken : ftl::DefaultConstructible<CallbackToken, size_t>,
+                           ftl::Equatable<CallbackToken>,
+                           ftl::Incrementable<CallbackToken> {
+        using DefaultConstructible::DefaultConstructible;
+    };
 
     virtual ~VSyncDispatch();
 
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
index 5cb0ffb..963f9e9 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
@@ -267,15 +267,15 @@
 }
 
 void VSyncDispatchTimerQueue::rearmTimer(nsecs_t now) {
-    rearmTimerSkippingUpdateFor(now, mCallbacks.end());
+    rearmTimerSkippingUpdateFor(now, mCallbacks.cend());
 }
 
 void VSyncDispatchTimerQueue::rearmTimerSkippingUpdateFor(
-        nsecs_t now, CallbackMap::iterator const& skipUpdateIt) {
+        nsecs_t now, CallbackMap::const_iterator skipUpdateIt) {
     std::optional<nsecs_t> min;
     std::optional<nsecs_t> targetVsync;
     std::optional<std::string_view> nextWakeupName;
-    for (auto it = mCallbacks.begin(); it != mCallbacks.end(); it++) {
+    for (auto it = mCallbacks.cbegin(); it != mCallbacks.cend(); ++it) {
         auto& callback = it->second;
         if (!callback->wakeupTime() && !callback->hasPendingWorkloadUpdate()) {
             continue;
@@ -351,13 +351,12 @@
 VSyncDispatchTimerQueue::CallbackToken VSyncDispatchTimerQueue::registerCallback(
         Callback callback, std::string callbackName) {
     std::lock_guard lock(mMutex);
-    return CallbackToken{
-            mCallbacks
-                    .emplace(++mCallbackToken,
-                             std::make_shared<VSyncDispatchTimerQueueEntry>(std::move(callbackName),
-                                                                            std::move(callback),
-                                                                            mMinVsyncDistance))
-                    .first->first};
+    return mCallbacks
+            .try_emplace(++mCallbackToken,
+                         std::make_shared<VSyncDispatchTimerQueueEntry>(std::move(callbackName),
+                                                                        std::move(callback),
+                                                                        mMinVsyncDistance))
+            .first->first;
 }
 
 void VSyncDispatchTimerQueue::unregisterCallback(CallbackToken token) {
@@ -367,7 +366,7 @@
         auto it = mCallbacks.find(token);
         if (it != mCallbacks.end()) {
             entry = it->second;
-            mCallbacks.erase(it);
+            mCallbacks.erase(it->first);
         }
     }
 
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
index 3d08410..81c746e 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
@@ -16,14 +16,13 @@
 
 #pragma once
 
-#include <functional>
 #include <memory>
 #include <mutex>
 #include <string>
 #include <string_view>
-#include <unordered_map>
 
 #include <android-base/thread_annotations.h>
+#include <ftl/small_map.h>
 
 #include "VSyncDispatch.h"
 #include "VsyncSchedule.h"
@@ -135,13 +134,14 @@
     VSyncDispatchTimerQueue(const VSyncDispatchTimerQueue&) = delete;
     VSyncDispatchTimerQueue& operator=(const VSyncDispatchTimerQueue&) = delete;
 
+    // The static capacity was chosen to exceed the expected number of callbacks.
     using CallbackMap =
-            std::unordered_map<CallbackToken, std::shared_ptr<VSyncDispatchTimerQueueEntry>>;
+            ftl::SmallMap<CallbackToken, std::shared_ptr<VSyncDispatchTimerQueueEntry>, 5>;
 
     void timerCallback();
     void setTimer(nsecs_t, nsecs_t) REQUIRES(mMutex);
     void rearmTimer(nsecs_t now) REQUIRES(mMutex);
-    void rearmTimerSkippingUpdateFor(nsecs_t now, CallbackMap::iterator const& skipUpdate)
+    void rearmTimerSkippingUpdateFor(nsecs_t now, CallbackMap::const_iterator skipUpdate)
             REQUIRES(mMutex);
     void cancelTimer() REQUIRES(mMutex);
     ScheduleResult scheduleLocked(CallbackToken, ScheduleTiming) REQUIRES(mMutex);
@@ -158,7 +158,7 @@
     nsecs_t const mTimerSlack;
     nsecs_t const mMinVsyncDistance;
 
-    size_t mCallbackToken GUARDED_BY(mMutex) = 0;
+    CallbackToken mCallbackToken GUARDED_BY(mMutex);
 
     CallbackMap mCallbacks GUARDED_BY(mMutex);
     nsecs_t mIntendedWakeupTime GUARDED_BY(mMutex) = kInvalidTime;
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index 6e12b33..8697696 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
@@ -48,14 +48,12 @@
 VSyncPredictor::~VSyncPredictor() = default;
 
 VSyncPredictor::VSyncPredictor(ftl::NonNull<DisplayModePtr> modePtr, size_t historySize,
-                               size_t minimumSamplesForPrediction, uint32_t outlierTolerancePercent,
-                               IVsyncTrackerCallback& callback)
+                               size_t minimumSamplesForPrediction, uint32_t outlierTolerancePercent)
       : mId(modePtr->getPhysicalDisplayId()),
         mTraceOn(property_get_bool("debug.sf.vsp_trace", false)),
         kHistorySize(historySize),
         kMinimumSamplesForPrediction(minimumSamplesForPrediction),
         kOutlierTolerancePercent(std::min(outlierTolerancePercent, kMaxPercent)),
-        mVsyncTrackerCallback(callback),
         mDisplayModePtr(modePtr) {
     resetModel();
 }
@@ -312,13 +310,7 @@
             FlagManager::getInstance().vrr_config() && !lastFrameMissed && lastVsyncOpt
             ? std::max(timePoint, *lastVsyncOpt + minFramePeriod - threshold)
             : timePoint;
-    const auto vsyncTime = snapToVsyncAlignedWithRenderRate(baseTime);
-    if (FlagManager::getInstance().vrr_config() && mDisplayModePtr->getVrrConfig()) {
-        const auto vsyncTimePoint = TimePoint::fromNs(vsyncTime);
-        const Fps renderRate = mRenderRateOpt ? *mRenderRateOpt : mDisplayModePtr->getPeakFps();
-        mVsyncTrackerCallback.onVsyncGenerated(vsyncTimePoint, mDisplayModePtr, renderRate);
-    }
-    return vsyncTime;
+    return snapToVsyncAlignedWithRenderRate(baseTime);
 }
 
 nsecs_t VSyncPredictor::snapToVsyncAlignedWithRenderRate(nsecs_t timePoint) const {
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.h b/services/surfaceflinger/Scheduler/VSyncPredictor.h
index 9191003..8fd7e60 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.h
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.h
@@ -37,11 +37,9 @@
      * \param [in] minimumSamplesForPrediction The minimum number of samples to collect before
      * predicting. \param [in] outlierTolerancePercent a number 0 to 100 that will be used to filter
      * samples that fall outlierTolerancePercent from an anticipated vsync event.
-     * \param [in] IVsyncTrackerCallback The callback for the VSyncTracker.
      */
     VSyncPredictor(ftl::NonNull<DisplayModePtr> modePtr, size_t historySize,
-                   size_t minimumSamplesForPrediction, uint32_t outlierTolerancePercent,
-                   IVsyncTrackerCallback&);
+                   size_t minimumSamplesForPrediction, uint32_t outlierTolerancePercent);
     ~VSyncPredictor();
 
     bool addVsyncTimestamp(nsecs_t timestamp) final EXCLUDES(mMutex);
@@ -106,7 +104,6 @@
     size_t const kHistorySize;
     size_t const kMinimumSamplesForPrediction;
     size_t const kOutlierTolerancePercent;
-    IVsyncTrackerCallback& mVsyncTrackerCallback;
     std::mutex mutable mMutex;
 
     std::optional<nsecs_t> mKnownTimestamp GUARDED_BY(mMutex);
diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 417163f..37bd4b4 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -26,12 +26,6 @@
 
 namespace android::scheduler {
 
-struct IVsyncTrackerCallback {
-    virtual ~IVsyncTrackerCallback() = default;
-    virtual void onVsyncGenerated(TimePoint expectedPresentTime, ftl::NonNull<DisplayModePtr>,
-                                  Fps renderRate) = 0;
-};
-
 /*
  * VSyncTracker is an interface for providing estimates on future Vsync signal times based on
  * historical vsync timing data.
diff --git a/services/surfaceflinger/Scheduler/VsyncSchedule.cpp b/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
index 3491600..001938c 100644
--- a/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
+++ b/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
@@ -57,11 +57,10 @@
 };
 
 VsyncSchedule::VsyncSchedule(ftl::NonNull<DisplayModePtr> modePtr, FeatureFlags features,
-                             RequestHardwareVsync requestHardwareVsync,
-                             IVsyncTrackerCallback& callback)
+                             RequestHardwareVsync requestHardwareVsync)
       : mId(modePtr->getPhysicalDisplayId()),
         mRequestHardwareVsync(std::move(requestHardwareVsync)),
-        mTracker(createTracker(modePtr, callback)),
+        mTracker(createTracker(modePtr)),
         mDispatch(createDispatch(mTracker)),
         mController(createController(modePtr->getPhysicalDisplayId(), *mTracker, features)),
         mTracer(features.test(Feature::kTracePredictedVsync)
@@ -115,15 +114,14 @@
     mDispatch->dump(out);
 }
 
-VsyncSchedule::TrackerPtr VsyncSchedule::createTracker(ftl::NonNull<DisplayModePtr> modePtr,
-                                                       IVsyncTrackerCallback& callback) {
+VsyncSchedule::TrackerPtr VsyncSchedule::createTracker(ftl::NonNull<DisplayModePtr> modePtr) {
     // TODO(b/144707443): Tune constants.
     constexpr size_t kHistorySize = 20;
     constexpr size_t kMinSamplesForPrediction = 6;
     constexpr uint32_t kDiscardOutlierPercent = 20;
 
     return std::make_unique<VSyncPredictor>(modePtr, kHistorySize, kMinSamplesForPrediction,
-                                            kDiscardOutlierPercent, callback);
+                                            kDiscardOutlierPercent);
 }
 
 VsyncSchedule::DispatchPtr VsyncSchedule::createDispatch(TrackerPtr tracker) {
diff --git a/services/surfaceflinger/Scheduler/VsyncSchedule.h b/services/surfaceflinger/Scheduler/VsyncSchedule.h
index 6f656d2..85cd3e7 100644
--- a/services/surfaceflinger/Scheduler/VsyncSchedule.h
+++ b/services/surfaceflinger/Scheduler/VsyncSchedule.h
@@ -57,8 +57,7 @@
 public:
     using RequestHardwareVsync = std::function<void(PhysicalDisplayId, bool enabled)>;
 
-    VsyncSchedule(ftl::NonNull<DisplayModePtr> modePtr, FeatureFlags, RequestHardwareVsync,
-                  IVsyncTrackerCallback&);
+    VsyncSchedule(ftl::NonNull<DisplayModePtr> modePtr, FeatureFlags, RequestHardwareVsync);
     ~VsyncSchedule();
 
     // IVsyncSource overrides:
@@ -128,7 +127,7 @@
     friend class android::VsyncScheduleTest;
     friend class android::fuzz::SchedulerFuzzer;
 
-    static TrackerPtr createTracker(ftl::NonNull<DisplayModePtr> modePtr, IVsyncTrackerCallback&);
+    static TrackerPtr createTracker(ftl::NonNull<DisplayModePtr> modePtr);
     static DispatchPtr createDispatch(TrackerPtr);
     static ControllerPtr createController(PhysicalDisplayId, VsyncTracker&, FeatureFlags);
 
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h b/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
index 12ee36e..8673a22 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
@@ -47,6 +47,9 @@
     virtual CompositeResultsPerDisplay composite(PhysicalDisplayId pacesetterId,
                                                  const scheduler::FrameTargeters&) = 0;
 
+    // Sends a hint about the expected present time
+    virtual void sendNotifyExpectedPresentHint(PhysicalDisplayId) = 0;
+
     // Samples the composited frame via RegionSamplingThread.
     virtual void sample() = 0;
 
diff --git a/services/surfaceflinger/Scheduler/src/Timer.cpp b/services/surfaceflinger/Scheduler/src/Timer.cpp
index 09e8a1e..eeb9c60 100644
--- a/services/surfaceflinger/Scheduler/src/Timer.cpp
+++ b/services/surfaceflinger/Scheduler/src/Timer.cpp
@@ -159,7 +159,7 @@
         ALOGW("Failed to set SCHED_FIFO on dispatch thread");
     }
 
-    if (pthread_setname_np(pthread_self(), "TimerDispatch")) {
+    if (pthread_setname_np(pthread_self(), "TimerDispatch") != 0) {
         ALOGW("Failed to set thread name on dispatch thread");
     }
 
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index aa6be36..173b6fe 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1083,7 +1083,7 @@
 
     for (const auto& [id, mode] : displayModes) {
         ui::DisplayMode outMode;
-        outMode.id = static_cast<int32_t>(id.value());
+        outMode.id = ftl::to_underlying(id);
 
         auto [width, height] = mode->getResolution();
         auto [xDpi, yDpi] = mode->getDpi();
@@ -1132,7 +1132,7 @@
     const PhysicalDisplayId displayId = snapshot.displayId();
 
     const auto mode = display->refreshRateSelector().getActiveMode();
-    info->activeDisplayModeId = mode.modePtr->getId().value();
+    info->activeDisplayModeId = ftl::to_underlying(mode.modePtr->getId());
     info->renderFrameRate = mode.fps.getValue();
     info->activeColorMode = display->getCompositionDisplay()->getState().colorMode;
     info->hdrCapabilities = filterOut4k30(display->getHdrCapabilities());
@@ -1148,7 +1148,7 @@
     if (getHwComposer().hasCapability(Capability::BOOT_DISPLAY_CONFIG)) {
         if (const auto hwcId = getHwComposer().getPreferredBootDisplayMode(displayId)) {
             if (const auto modeId = snapshot.translateModeId(*hwcId)) {
-                info->preferredBootDisplayMode = modeId->value();
+                info->preferredBootDisplayMode = ftl::to_underlying(*modeId);
             }
         }
     }
@@ -1311,7 +1311,7 @@
                 [](const DisplayModePtr& mode) { return mode->getPeakFps(); });
 
         if (!fpsOpt) {
-            ALOGE("%s: Invalid mode %d for display %s", whence, modeId.value(),
+            ALOGE("%s: Invalid mode %d for display %s", whence, ftl::to_underlying(modeId),
                   to_string(snapshot.displayId()).c_str());
             return BAD_VALUE;
         }
@@ -1420,12 +1420,12 @@
 
         if (!displayModePtrOpt) {
             ALOGW("Desired display mode is no longer supported. Mode ID = %d",
-                  desiredModeId.value());
-            dropModeRequest(display);
+                  ftl::to_underlying(desiredModeId));
             continue;
         }
 
-        ALOGV("%s changing active mode to %d(%s) for display %s", __func__, desiredModeId.value(),
+        ALOGV("%s changing active mode to %d(%s) for display %s", __func__,
+              ftl::to_underlying(desiredModeId),
               to_string(displayModePtrOpt->get()->getVsyncRate()).c_str(),
               to_string(display->getId()).c_str());
 
@@ -1617,7 +1617,7 @@
                 [](const DisplayModePtr& mode) { return mode->getHwcId(); });
 
         if (!hwcIdOpt) {
-            ALOGE("%s: Invalid mode %d for display %s", whence, modeId.value(),
+            ALOGE("%s: Invalid mode %d for display %s", whence, ftl::to_underlying(modeId),
                   to_string(snapshot.displayId()).c_str());
             return BAD_VALUE;
         }
@@ -2753,23 +2753,11 @@
         refreshArgs.devOptFlashDirtyRegionsDelay = std::chrono::milliseconds(mDebugFlashDelay);
     }
 
-    const TimePoint expectedPresentTime = pacesetterTarget.expectedPresentTime();
     // TODO(b/255601557) Update frameInterval per display
-    refreshArgs.frameInterval = mScheduler->getNextFrameInterval(pacesetterId, expectedPresentTime);
+    refreshArgs.frameInterval =
+            mScheduler->getNextFrameInterval(pacesetterId, pacesetterTarget.expectedPresentTime());
     refreshArgs.scheduledFrameTime = mScheduler->getScheduledFrameTime();
     refreshArgs.hasTrustedPresentationListener = mNumTrustedPresentationListeners > 0;
-    {
-        auto& notifyExpectedPresentData = mNotifyExpectedPresentMap[pacesetterId];
-        auto lastExpectedPresentTimestamp = TimePoint::fromNs(
-                notifyExpectedPresentData.lastExpectedPresentTimestamp.load().ns());
-        if (expectedPresentTime > lastExpectedPresentTimestamp) {
-            // If the values are not same, then hint is sent with newer value.
-            // And because composition always follows the notifyExpectedPresentIfRequired, we can
-            // skip updating the lastExpectedPresentTimestamp in this case.
-            notifyExpectedPresentData.lastExpectedPresentTimestamp
-                    .compare_exchange_weak(lastExpectedPresentTimestamp, expectedPresentTime);
-        }
-    }
     // Store the present time just before calling to the composition engine so we could notify
     // the scheduler.
     const auto presentTime = systemTime();
@@ -2833,6 +2821,7 @@
         scheduleComposite(FrameHint::kNone);
     }
 
+    mNotifyExpectedPresentMap[pacesetterId].hintStatus = NotifyExpectedPresentHintStatus::Start;
     onCompositionPresented(pacesetterId, frameTargeters, presentTime);
 
     const bool hadGpuComposited =
@@ -3293,7 +3282,7 @@
 std::pair<DisplayModes, DisplayModePtr> SurfaceFlinger::loadDisplayModes(
         PhysicalDisplayId displayId) const {
     std::vector<HWComposer::HWCDisplayMode> hwcModes;
-    std::optional<hal::HWDisplayId> activeModeHwcId;
+    std::optional<hal::HWConfigId> activeModeHwcIdOpt;
 
     int attempt = 0;
     constexpr int kMaxAttempts = 3;
@@ -3301,10 +3290,10 @@
         hwcModes = getHwComposer().getModes(displayId,
                                             scheduler::RefreshRateSelector::kMinSupportedFrameRate
                                                     .getPeriodNsecs());
-        activeModeHwcId = getHwComposer().getActiveMode(displayId);
+        activeModeHwcIdOpt = getHwComposer().getActiveMode(displayId).value_opt();
 
-        const auto isActiveMode = [activeModeHwcId](const HWComposer::HWCDisplayMode& mode) {
-            return mode.hwcId == activeModeHwcId;
+        const auto isActiveMode = [activeModeHwcIdOpt](const HWComposer::HWCDisplayMode& mode) {
+            return mode.hwcId == activeModeHwcIdOpt;
         };
 
         if (std::any_of(hwcModes.begin(), hwcModes.end(), isActiveMode)) {
@@ -3314,7 +3303,7 @@
 
     if (attempt == kMaxAttempts) {
         const std::string activeMode =
-                activeModeHwcId ? std::to_string(*activeModeHwcId) : "unknown"s;
+                activeModeHwcIdOpt ? std::to_string(*activeModeHwcIdOpt) : "unknown"s;
         ALOGE("HWC failed to report an active mode that is supported: activeModeHwcId=%s, "
               "hwcModes={%s}",
               activeMode.c_str(), base::Join(hwcModes, ", ").c_str());
@@ -3327,15 +3316,15 @@
                                           })
                                           .value_or(DisplayModes{});
 
-    ui::DisplayModeId nextModeId = 1 +
-            std::accumulate(oldModes.begin(), oldModes.end(), static_cast<ui::DisplayModeId>(-1),
-                            [](ui::DisplayModeId max, const auto& pair) {
-                                return std::max(max, pair.first.value());
-                            });
+    DisplayModeId nextModeId = std::accumulate(oldModes.begin(), oldModes.end(), DisplayModeId(-1),
+                                               [](DisplayModeId max, const auto& pair) {
+                                                   return std::max(max, pair.first);
+                                               });
+    ++nextModeId;
 
     DisplayModes newModes;
     for (const auto& hwcMode : hwcModes) {
-        const DisplayModeId id{nextModeId++};
+        const auto id = nextModeId++;
         newModes.try_emplace(id,
                              DisplayMode::Builder(hwcMode.hwcId)
                                      .setId(id)
@@ -3358,8 +3347,8 @@
     // Keep IDs if modes have not changed.
     const auto& modes = sameModes ? oldModes : newModes;
     const DisplayModePtr activeMode =
-            std::find_if(modes.begin(), modes.end(), [activeModeHwcId](const auto& pair) {
-                return pair.second->getHwcId() == activeModeHwcId;
+            std::find_if(modes.begin(), modes.end(), [activeModeHwcIdOpt](const auto& pair) {
+                return pair.second->getHwcId() == activeModeHwcIdOpt;
             })->second;
 
     return {modes, activeMode};
@@ -3406,8 +3395,12 @@
 
     auto [displayModes, activeMode] = loadDisplayModes(displayId);
     if (!activeMode) {
-        // TODO(b/241286153): Report hotplug failure to the framework.
         ALOGE("Failed to hotplug display %s", to_string(displayId).c_str());
+        if (FlagManager::getInstance().hotplug2()) {
+            mScheduler->onHotplugConnectionError(mAppConnectionHandle,
+                                                 static_cast<int32_t>(
+                                                         DisplayHotplugEvent::ERROR_UNKNOWN));
+        }
         getHwComposer().disconnectDisplay(displayId);
         return nullptr;
     }
@@ -3775,6 +3768,9 @@
         mVisibleRegionsDirty = true;
         mUpdateInputInfo = true;
 
+        // Apply the current color matrix to any added or changed display.
+        mCurrentState.colorMatrixChanged = true;
+
         // find the displays that were removed
         // (ie: in drawing state but not in current state)
         // also handle displays that changed
@@ -4084,8 +4080,8 @@
         if (display->refreshRateSelector().isModeAllowed(request.mode)) {
             setDesiredMode(std::move(request));
         } else {
-            ALOGV("%s: Mode %d is disallowed for display %s", __func__, modePtr->getId().value(),
-                  to_string(displayId).c_str());
+            ALOGV("%s: Mode %d is disallowed for display %s", __func__,
+                  ftl::to_underlying(modePtr->getId()), to_string(displayId).c_str());
         }
     }
 }
@@ -4111,8 +4107,9 @@
     }
 }
 
-void SurfaceFlinger::onVsyncGenerated(TimePoint expectedPresentTime,
-                                      ftl::NonNull<DisplayModePtr> modePtr, Fps renderRate) {
+void SurfaceFlinger::onExpectedPresentTimePosted(TimePoint expectedPresentTime,
+                                                 ftl::NonNull<DisplayModePtr> modePtr,
+                                                 Fps renderRate) {
     const auto vsyncPeriod = modePtr->getVsyncRate().getPeriod();
     const auto timeoutOpt = [&]() -> std::optional<Period> {
         const auto vrrConfig = modePtr->getVrrConfig();
@@ -4133,45 +4130,91 @@
                                                      TimePoint expectedPresentTime,
                                                      Fps frameInterval,
                                                      std::optional<Period> timeoutOpt) {
-    {
-        auto& data = mNotifyExpectedPresentMap[displayId];
-        const auto lastExpectedPresentTimestamp = data.lastExpectedPresentTimestamp.load();
-        const auto lastFrameInterval = data.lastFrameInterval;
-        data.lastFrameInterval = frameInterval;
-        const auto threshold = Duration::fromNs(vsyncPeriod.ns() / 2);
+    auto& data = mNotifyExpectedPresentMap[displayId];
+    const auto lastExpectedPresentTimestamp = data.lastExpectedPresentTimestamp;
+    const auto lastFrameInterval = data.lastFrameInterval;
+    data.lastFrameInterval = frameInterval;
+    data.lastExpectedPresentTimestamp = expectedPresentTime;
+    const auto threshold = Duration::fromNs(vsyncPeriod.ns() / 2);
 
-        const constexpr nsecs_t kOneSecondNs =
-                std::chrono::duration_cast<std::chrono::nanoseconds>(1s).count();
-        const auto timeout = Period::fromNs(timeoutOpt && timeoutOpt->ns() > 0 ? timeoutOpt->ns()
-                                                                               : kOneSecondNs);
-        const bool frameIntervalIsOnCadence =
-                isFrameIntervalOnCadence(expectedPresentTime, lastExpectedPresentTimestamp,
-                                         lastFrameInterval, timeout, threshold);
+    const constexpr nsecs_t kOneSecondNs =
+            std::chrono::duration_cast<std::chrono::nanoseconds>(1s).count();
+    const auto timeout =
+            Period::fromNs(timeoutOpt && timeoutOpt->ns() > 0 ? timeoutOpt->ns() : kOneSecondNs);
+    const bool frameIntervalIsOnCadence =
+            isFrameIntervalOnCadence(expectedPresentTime, lastExpectedPresentTimestamp,
+                                     lastFrameInterval, timeout, threshold);
 
-        const bool expectedPresentWithinTimeout =
-                isExpectedPresentWithinTimeout(expectedPresentTime, lastExpectedPresentTimestamp,
-                                               timeoutOpt, threshold);
+    const bool expectedPresentWithinTimeout =
+            isExpectedPresentWithinTimeout(expectedPresentTime, lastExpectedPresentTimestamp,
+                                           timeoutOpt, threshold);
+    if (expectedPresentWithinTimeout && frameIntervalIsOnCadence) {
+        return;
+    }
 
-        using fps_approx_ops::operator!=;
-        if (frameIntervalIsOnCadence && frameInterval != lastFrameInterval) {
-            data.lastExpectedPresentTimestamp = expectedPresentTime;
-        }
-
-        if (expectedPresentWithinTimeout && frameIntervalIsOnCadence) {
+    auto hintStatus = data.hintStatus.load();
+    if (!expectedPresentWithinTimeout) {
+        if (hintStatus != NotifyExpectedPresentHintStatus::Sent ||
+            (timeoutOpt && timeoutOpt->ns() == 0)) {
+            // Send the hint immediately if timeout, as the hint gets
+            // delayed otherwise, as the frame is scheduled close
+            // to the actual present.
+            if (data.hintStatus
+                        .compare_exchange_strong(hintStatus,
+                                                 NotifyExpectedPresentHintStatus::ScheduleOnTx)) {
+                scheduleNotifyExpectedPresentHint(displayId);
+            }
             return;
         }
-        data.lastExpectedPresentTimestamp = expectedPresentTime;
+    }
+
+    if (hintStatus != NotifyExpectedPresentHintStatus::Start) {
+        return;
+    }
+    data.hintStatus.store(NotifyExpectedPresentHintStatus::ScheduleOnPresent);
+    mScheduler->scheduleFrame();
+}
+
+void SurfaceFlinger::scheduleNotifyExpectedPresentHint(PhysicalDisplayId displayId) {
+    auto itr = mNotifyExpectedPresentMap.find(displayId);
+    if (itr == mNotifyExpectedPresentMap.end()) {
+        return;
     }
 
     const char* const whence = __func__;
-    static_cast<void>(mScheduler->schedule([=, this]() FTL_FAKE_GUARD(kMainThreadContext) {
-        const auto status = getHwComposer().notifyExpectedPresent(displayId, expectedPresentTime,
-                                                                  frameInterval);
+    const auto sendHint = [=, this]() {
+        auto& data = mNotifyExpectedPresentMap.at(displayId);
+        data.hintStatus.store(NotifyExpectedPresentHintStatus::Sent);
+        const auto status =
+                getHwComposer().notifyExpectedPresent(displayId, data.lastExpectedPresentTimestamp,
+                                                      data.lastFrameInterval);
         if (status != NO_ERROR) {
             ALOGE("%s failed to notifyExpectedPresentHint for display %" PRId64, whence,
                   displayId.value);
         }
-    }));
+    };
+
+    if (itr->second.hintStatus == NotifyExpectedPresentHintStatus::ScheduleOnTx) {
+        return static_cast<void>(mScheduler->schedule([=,
+                                                       this]() FTL_FAKE_GUARD(kMainThreadContext) {
+            auto& data = mNotifyExpectedPresentMap.at(displayId);
+            auto scheduleHintOnTx = NotifyExpectedPresentHintStatus::ScheduleOnTx;
+            if (data.hintStatus.compare_exchange_strong(scheduleHintOnTx,
+                                                        NotifyExpectedPresentHintStatus::Sent)) {
+                sendHint();
+            }
+        }));
+    }
+    sendHint();
+}
+
+void SurfaceFlinger::sendNotifyExpectedPresentHint(PhysicalDisplayId displayId) {
+    if (auto itr = mNotifyExpectedPresentMap.find(displayId);
+        itr == mNotifyExpectedPresentMap.end() ||
+        itr->second.hintStatus != NotifyExpectedPresentHintStatus::ScheduleOnPresent) {
+        return;
+    }
+    scheduleNotifyExpectedPresentHint(displayId);
 }
 
 void SurfaceFlinger::initScheduler(const sp<const DisplayDevice>& display) {
@@ -4213,8 +4256,7 @@
 
     mScheduler = std::make_unique<Scheduler>(static_cast<ICompositor&>(*this),
                                              static_cast<ISchedulerCallback&>(*this), features,
-                                             getFactory(), activeRefreshRate, *mTimeStats,
-                                             static_cast<IVsyncTrackerCallback&>(*this));
+                                             getFactory(), activeRefreshRate, *mTimeStats);
     mScheduler->registerDisplay(display->getPhysicalId(), display->holdRefreshRateSelector());
     if (FlagManager::getInstance().vrr_config()) {
         mScheduler->setRenderRate(display->getPhysicalId(), activeMode.fps);
@@ -4273,7 +4315,6 @@
     }
 
     mDrawingState = mCurrentState;
-    // clear the "changed" flags in current state
     mCurrentState.colorMatrixChanged = false;
 
     if (mVisibleRegionsDirty) {
@@ -5733,7 +5774,7 @@
         case ISurfaceComposerClient::eFXSurfaceContainer:
         case ISurfaceComposerClient::eFXSurfaceBufferState:
             args.flags |= ISurfaceComposerClient::eNoColorFill;
-            FMT_FALLTHROUGH;
+            [[fallthrough]];
         case ISurfaceComposerClient::eFXSurfaceEffect: {
             result = createBufferStateLayer(args, &outResult.handle, &layer);
             std::atomic<int32_t>* pendingBufferCounter = layer->getPendingBufferCounter();
@@ -8334,11 +8375,11 @@
     const auto preferredModeId = preferredMode.modePtr->getId();
 
     const Fps preferredFps = preferredMode.fps;
-    ALOGV("Switching to Scheduler preferred mode %d (%s)", preferredModeId.value(),
+    ALOGV("Switching to Scheduler preferred mode %d (%s)", ftl::to_underlying(preferredModeId),
           to_string(preferredFps).c_str());
 
     if (!selector.isModeAllowed(preferredMode)) {
-        ALOGE("%s: Preferred mode %d is disallowed", __func__, preferredModeId.value());
+        ALOGE("%s: Preferred mode %d is disallowed", __func__, ftl::to_underlying(preferredModeId));
         return INVALID_OPERATION;
     }
 
@@ -8426,7 +8467,7 @@
 
     scheduler::RefreshRateSelector::Policy policy =
             display->refreshRateSelector().getDisplayManagerPolicy();
-    outSpecs->defaultMode = policy.defaultMode.value();
+    outSpecs->defaultMode = ftl::to_underlying(policy.defaultMode);
     outSpecs->allowGroupSwitching = policy.allowGroupSwitching;
     outSpecs->primaryRanges = translate(policy.primaryRanges);
     outSpecs->appRequestRanges = translate(policy.appRequestRanges);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index c8e2a4d..992bc00 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -199,8 +199,7 @@
                        private HWC2::ComposerCallback,
                        private ICompositor,
                        private scheduler::ISchedulerCallback,
-                       private compositionengine::ICEPowerCallback,
-                       private scheduler::IVsyncTrackerCallback {
+                       private compositionengine::ICEPowerCallback {
 public:
     struct SkipInitializationTag {};
 
@@ -686,14 +685,12 @@
     void kernelTimerChanged(bool expired) override;
     void triggerOnFrameRateOverridesChanged() override;
     void onChoreographerAttached() override;
+    void onExpectedPresentTimePosted(TimePoint expectedPresentTime, ftl::NonNull<DisplayModePtr>,
+                                     Fps renderRate) override;
 
     // ICEPowerCallback overrides:
     void notifyCpuLoadUp() override;
 
-    // IVsyncTrackerCallback overrides
-    void onVsyncGenerated(TimePoint expectedPresentTime, ftl::NonNull<DisplayModePtr>,
-                          Fps renderRate) override;
-
     // Toggles the kernel idle timer on or off depending the policy decisions around refresh rates.
     void toggleKernelIdleTimer() REQUIRES(mStateLock);
 
@@ -1482,14 +1479,28 @@
     ftl::SmallMap<int64_t, sp<SurfaceControl>, 3> mMirrorMapForDebug;
 
     // NotifyExpectedPresentHint
+    enum class NotifyExpectedPresentHintStatus {
+        // Represents that framework can start sending hint if required.
+        Start,
+        // Represents that the hint is already sent.
+        Sent,
+        // Represents that the hint will be scheduled with a new frame.
+        ScheduleOnPresent,
+        // Represents that a hint will be sent instantly by scheduling on the main thread.
+        ScheduleOnTx
+    };
     struct NotifyExpectedPresentData {
-        // lastExpectedPresentTimestamp is read and write from multiple threads such as
-        // main thread, EventThread, MessageQueue. And is atomic for that reason.
-        std::atomic<TimePoint> lastExpectedPresentTimestamp{};
+        TimePoint lastExpectedPresentTimestamp{};
         Fps lastFrameInterval{};
+        // hintStatus is read and write from multiple threads such as
+        // main thread, EventThread. And is atomic for that reason.
+        std::atomic<NotifyExpectedPresentHintStatus> hintStatus =
+                NotifyExpectedPresentHintStatus::Start;
     };
     std::unordered_map<PhysicalDisplayId, NotifyExpectedPresentData> mNotifyExpectedPresentMap;
-
+    void sendNotifyExpectedPresentHint(PhysicalDisplayId displayId) override
+            REQUIRES(kMainThreadContext);
+    void scheduleNotifyExpectedPresentHint(PhysicalDisplayId displayId);
     void notifyExpectedPresentIfRequired(PhysicalDisplayId, Period vsyncPeriod,
                                          TimePoint expectedPresentTime, Fps frameInterval,
                                          std::optional<Period> timeoutOpt);
diff --git a/services/surfaceflinger/common/Android.bp b/services/surfaceflinger/common/Android.bp
index 5ef22b5..e125bbe 100644
--- a/services/surfaceflinger/common/Android.bp
+++ b/services/surfaceflinger/common/Android.bp
@@ -18,7 +18,7 @@
         "server_configurable_flags",
     ],
     static_libs: [
-        "librenderengine",
+        "librenderengine_includes",
     ],
     srcs: [
         "FlagManager.cpp",
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index b07e7ac..425d2da 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -130,6 +130,8 @@
     DUMP_READ_ONLY_FLAG(enable_layer_command_batching);
     DUMP_READ_ONLY_FLAG(screenshot_fence_preservation);
     DUMP_READ_ONLY_FLAG(vulkan_renderengine);
+    DUMP_READ_ONLY_FLAG(renderable_buffer_usage);
+    DUMP_READ_ONLY_FLAG(restore_blur_step);
 #undef DUMP_READ_ONLY_FLAG
 #undef DUMP_SERVER_FLAG
 #undef DUMP_FLAG_INTERVAL
@@ -206,6 +208,8 @@
 FLAG_MANAGER_READ_ONLY_FLAG(enable_layer_command_batching, "")
 FLAG_MANAGER_READ_ONLY_FLAG(screenshot_fence_preservation, "debug.sf.screenshot_fence_preservation")
 FLAG_MANAGER_READ_ONLY_FLAG(vulkan_renderengine, "debug.renderengine.vulkan")
+FLAG_MANAGER_READ_ONLY_FLAG(renderable_buffer_usage, "")
+FLAG_MANAGER_READ_ONLY_FLAG(restore_blur_step, "debug.renderengine.restore_blur_step")
 
 /// Trunk stable server flags ///
 FLAG_MANAGER_SERVER_FLAG(late_boot_misc2, "")
diff --git a/services/surfaceflinger/common/include/common/FlagManager.h b/services/surfaceflinger/common/include/common/FlagManager.h
index 2a30a40..86efd30 100644
--- a/services/surfaceflinger/common/include/common/FlagManager.h
+++ b/services/surfaceflinger/common/include/common/FlagManager.h
@@ -70,6 +70,8 @@
     bool enable_layer_command_batching() const;
     bool screenshot_fence_preservation() const;
     bool vulkan_renderengine() const;
+    bool renderable_buffer_usage() const;
+    bool restore_blur_step() const;
 
 protected:
     // overridden for unit tests
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
index 68237c8..682079f 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
@@ -143,7 +143,6 @@
     void invokeComposerHal2_2(Hwc2::AidlComposer*, Display, Hwc2::V2_4::hal::Layer);
     void invokeComposerHal2_3(Hwc2::AidlComposer*, Display, Hwc2::V2_4::hal::Layer);
     void invokeComposerHal2_4(Hwc2::AidlComposer*, Display, Hwc2::V2_4::hal::Layer);
-    void getDisplayVsyncPeriod();
     void setActiveModeWithConstraints();
     void getDisplayIdentificationData();
     void dumpHwc();
@@ -202,11 +201,6 @@
     return display;
 }
 
-void DisplayHardwareFuzzer::getDisplayVsyncPeriod() {
-    nsecs_t outVsyncPeriod;
-    mHwc.getDisplayVsyncPeriod(mPhysicalDisplayId, &outVsyncPeriod);
-}
-
 void DisplayHardwareFuzzer::setActiveModeWithConstraints() {
     hal::VsyncPeriodChangeTimeline outTimeline;
     mHwc.setActiveModeWithConstraints(mPhysicalDisplayId, kActiveConfig, {} /*constraints*/,
@@ -617,8 +611,7 @@
 
     mHwc.getDisplayConnectionType(mPhysicalDisplayId);
     mHwc.isVsyncPeriodSwitchSupported(mPhysicalDisplayId);
-
-    getDisplayVsyncPeriod();
+    mHwc.getDisplayVsyncPeriod(mPhysicalDisplayId);
 
     setActiveModeWithConstraints();
 
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index fa79956..0d15f62 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -228,9 +228,9 @@
                       VsyncSchedule::TrackerPtr tracker,
                       std::shared_ptr<RefreshRateSelector> selectorPtr,
                       surfaceflinger::Factory& factory, TimeStats& timeStats,
-                      ISchedulerCallback& callback, IVsyncTrackerCallback& vsyncTrackerCallback)
+                      ISchedulerCallback& callback)
           : Scheduler(*this, callback, Feature::kContentDetection, factory,
-                      selectorPtr->getActiveMode().fps, timeStats, vsyncTrackerCallback) {
+                      selectorPtr->getActiveMode().fps, timeStats) {
         const auto displayId = selectorPtr->getActiveMode().modePtr->getPhysicalDisplayId();
         registerDisplayInternal(displayId, std::move(selectorPtr),
                                 std::shared_ptr<VsyncSchedule>(
@@ -289,6 +289,8 @@
     }
     void sample() override {}
 
+    void sendNotifyExpectedPresentHint(PhysicalDisplayId) override {}
+
     // MessageQueue overrides:
     void scheduleFrame() override {}
     void postMessage(sp<MessageHandler>&& handler) override { handler->handleMessage(Message()); }
@@ -396,8 +398,7 @@
 } // namespace surfaceflinger::test
 
 // TODO(b/189053744) : Create a common test/mock library for surfaceflinger
-class TestableSurfaceFlinger final : private scheduler::ISchedulerCallback,
-                                     private scheduler::IVsyncTrackerCallback {
+class TestableSurfaceFlinger final : private scheduler::ISchedulerCallback {
 public:
     using HotplugEvent = SurfaceFlinger::HotplugEvent;
 
@@ -660,7 +661,6 @@
                         std::unique_ptr<EventThread> appEventThread,
                         std::unique_ptr<EventThread> sfEventThread,
                         scheduler::ISchedulerCallback* callback = nullptr,
-                        scheduler::IVsyncTrackerCallback* vsyncTrackerCallback = nullptr,
                         bool hasMultipleModes = false) {
         constexpr DisplayModeId kModeId60{0};
         DisplayModes modes = makeModes(mock::createDisplayMode(kModeId60, 60_Hz));
@@ -675,8 +675,7 @@
         mScheduler = new scheduler::TestableScheduler(std::move(vsyncController),
                                                       std::move(vsyncTracker), mRefreshRateSelector,
                                                       mFactory, *mFlinger->mTimeStats,
-                                                      *(callback ?: this),
-                                                      *(vsyncTrackerCallback ?: this));
+                                                      *(callback ?: this));
 
         mFlinger->mAppConnectionHandle = mScheduler->createConnection(std::move(appEventThread));
         mFlinger->mSfConnectionHandle = mScheduler->createConnection(std::move(sfEventThread));
@@ -796,9 +795,7 @@
     void kernelTimerChanged(bool) override {}
     void triggerOnFrameRateOverridesChanged() override {}
     void onChoreographerAttached() override {}
-
-    // IVsyncTrackerCallback overrides
-    void onVsyncGenerated(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
+    void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
 
     surfaceflinger::test::Factory mFactory;
     sp<SurfaceFlinger> mFlinger =
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
index a6b12d0..8cd6e1b 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
@@ -103,6 +103,7 @@
     bool throttleVsync(TimePoint, uid_t) override { return false; }
     Period getVsyncPeriod(uid_t) override { return kSyncPeriod; }
     void resync() override {}
+    void onExpectedPresentTimePosted(TimePoint) override {}
 };
 
 void SchedulerFuzzer::fuzzEventThread() {
@@ -180,21 +181,15 @@
     dump<scheduler::VSyncDispatchTimerQueueEntry>(&entry, &mFdp);
 }
 
-struct VsyncTrackerCallback : public scheduler::IVsyncTrackerCallback {
-    void onVsyncGenerated(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
-};
-
 void SchedulerFuzzer::fuzzVSyncPredictor() {
     uint16_t now = mFdp.ConsumeIntegral<uint16_t>();
     uint16_t historySize = mFdp.ConsumeIntegralInRange<uint16_t>(1, UINT16_MAX);
     uint16_t minimumSamplesForPrediction = mFdp.ConsumeIntegralInRange<uint16_t>(1, UINT16_MAX);
     nsecs_t idealPeriod = mFdp.ConsumeIntegralInRange<nsecs_t>(1, UINT32_MAX);
-    VsyncTrackerCallback callback;
     const auto mode = ftl::as_non_null(
             mock::createDisplayMode(DisplayModeId(0), Fps::fromPeriodNsecs(idealPeriod)));
     scheduler::VSyncPredictor tracker{mode, historySize, minimumSamplesForPrediction,
-                                      mFdp.ConsumeIntegral<uint32_t>() /*outlierTolerancePercent*/,
-                                      callback};
+                                      mFdp.ConsumeIntegral<uint32_t>() /*outlierTolerancePercent*/};
     uint16_t period = mFdp.ConsumeIntegral<uint16_t>();
     tracker.setDisplayModePtr(ftl::as_non_null(
             mock::createDisplayMode(DisplayModeId(0), Fps::fromPeriodNsecs(period))));
diff --git a/services/surfaceflinger/surfaceflinger_flags.aconfig b/services/surfaceflinger/surfaceflinger_flags.aconfig
index fcbef01..0ebc41b 100644
--- a/services/surfaceflinger/surfaceflinger_flags.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags.aconfig
@@ -174,3 +174,25 @@
   bug: "302703346"
   is_fixed_read_only: true
 }
+
+flag {
+  name: "renderable_buffer_usage"
+  namespace: "core_graphics"
+  description: "Decide whether an ExternalTexture isRenderable based on its buffer's usage."
+  bug: "305445199"
+  is_fixed_read_only: true
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+}
+
+flag {
+  name: "restore_blur_step"
+  namespace: "core_graphics"
+  description: "Restore drawing the blur input prior to drawing blurred content."
+  bug: "255921628"
+  is_fixed_read_only: true
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+}
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 5809ea0..da4e47f 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -95,6 +95,7 @@
         "MessageQueueTest.cpp",
         "PowerAdvisorTest.cpp",
         "SmallAreaDetectionAllowMappingsTest.cpp",
+        "SurfaceFlinger_ColorMatrixTest.cpp",
         "SurfaceFlinger_CreateDisplayTest.cpp",
         "SurfaceFlinger_DestroyDisplayTest.cpp",
         "SurfaceFlinger_DisplayModeSwitching.cpp",
@@ -128,7 +129,6 @@
         "TransactionTraceWriterTest.cpp",
         "TransactionTracingTest.cpp",
         "TunnelModeEnabledReporterTest.cpp",
-        "StrongTypingTest.cpp",
         "VSyncCallbackRegistrationTest.cpp",
         "VSyncDispatchTimerQueueTest.cpp",
         "VSyncDispatchRealtimeTest.cpp",
diff --git a/services/surfaceflinger/tests/unittests/CommitAndCompositeTest.h b/services/surfaceflinger/tests/unittests/CommitAndCompositeTest.h
new file mode 100644
index 0000000..34e4ba5
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/CommitAndCompositeTest.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <compositionengine/Display.h>
+#include <compositionengine/mock/DisplaySurface.h>
+#include <renderengine/mock/RenderEngine.h>
+
+#include "TestableSurfaceFlinger.h"
+#include "mock/DisplayHardware/MockComposer.h"
+#include "mock/DisplayHardware/MockPowerAdvisor.h"
+#include "mock/MockTimeStats.h"
+#include "mock/system/window/MockNativeWindow.h"
+
+namespace android {
+
+// Minimal setup to use TestableSurfaceFlinger::commitAndComposite.
+struct CommitAndCompositeTest : testing::Test {
+    void SetUp() override {
+        mFlinger.setupMockScheduler({.displayId = DEFAULT_DISPLAY_ID});
+        mComposer = new Hwc2::mock::Composer();
+        mPowerAdvisor = new Hwc2::mock::PowerAdvisor();
+        mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
+        mFlinger.setupTimeStats(std::shared_ptr<TimeStats>(mTimeStats));
+        mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
+        mFlinger.setupPowerAdvisor(std::unique_ptr<Hwc2::PowerAdvisor>(mPowerAdvisor));
+
+        constexpr bool kIsPrimary = true;
+        FakeHwcDisplayInjector(DEFAULT_DISPLAY_ID, hal::DisplayType::PHYSICAL, kIsPrimary)
+                .setPowerMode(hal::PowerMode::ON)
+                .inject(&mFlinger, mComposer);
+        auto compostionEngineDisplayArgs =
+                compositionengine::DisplayCreationArgsBuilder()
+                        .setId(DEFAULT_DISPLAY_ID)
+                        .setPixels({DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT})
+                        .setPowerAdvisor(mPowerAdvisor)
+                        .setName("Internal display")
+                        .build();
+        auto compositionDisplay =
+                compositionengine::impl::createDisplay(mFlinger.getCompositionEngine(),
+                                                       std::move(compostionEngineDisplayArgs));
+        mDisplay = FakeDisplayDeviceInjector(mFlinger, compositionDisplay,
+                                             ui::DisplayConnectionType::Internal, HWC_DISPLAY,
+                                             kIsPrimary)
+                           .setDisplaySurface(mDisplaySurface)
+                           .setNativeWindow(mNativeWindow)
+                           .setPowerMode(hal::PowerMode::ON)
+                           .setRefreshRateSelector(mFlinger.scheduler()->refreshRateSelector())
+                           .skipRegisterDisplay()
+                           .inject();
+    }
+
+    using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
+    using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
+
+    static constexpr hal::HWDisplayId HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
+    static constexpr PhysicalDisplayId DEFAULT_DISPLAY_ID = PhysicalDisplayId::fromPort(42u);
+    static constexpr int DEFAULT_DISPLAY_WIDTH = 1920;
+    static constexpr int DEFAULT_DISPLAY_HEIGHT = 1024;
+
+    TestableSurfaceFlinger mFlinger;
+    renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
+    sp<DisplayDevice> mDisplay;
+    sp<compositionengine::mock::DisplaySurface> mDisplaySurface =
+            sp<compositionengine::mock::DisplaySurface>::make();
+    sp<mock::NativeWindow> mNativeWindow = sp<mock::NativeWindow>::make();
+    mock::TimeStats* mTimeStats = new mock::TimeStats();
+    Hwc2::mock::PowerAdvisor* mPowerAdvisor = nullptr;
+    Hwc2::mock::Composer* mComposer = nullptr;
+};
+
+} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index beb2147..7d8a30a 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -25,6 +25,7 @@
 
 #include <compositionengine/Display.h>
 #include <compositionengine/mock/DisplaySurface.h>
+#include <ftl/future.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <gui/IProducerListener.h>
@@ -227,14 +228,6 @@
     LayerCase::cleanup(this);
 }
 
-template <class T>
-std::future<T> futureOf(T obj) {
-    std::promise<T> resultPromise;
-    std::future<T> resultFuture = resultPromise.get_future();
-    resultPromise.set_value(std::move(obj));
-    return resultFuture;
-}
-
 /* ------------------------------------------------------------------------
  * Variants for each display configuration which can be tested
  */
@@ -327,13 +320,13 @@
                 .WillRepeatedly([&](const renderengine::DisplaySettings& displaySettings,
                                     const std::vector<renderengine::LayerSettings>&,
                                     const std::shared_ptr<renderengine::ExternalTexture>&,
-                                    base::unique_fd&&) -> std::future<FenceResult> {
+                                    base::unique_fd&&) -> ftl::Future<FenceResult> {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.physicalDisplay);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.clip);
-                    return futureOf<FenceResult>(Fence::NO_FENCE);
+                    return ftl::yield<FenceResult>(Fence::NO_FENCE);
                 });
     }
 
@@ -378,14 +371,14 @@
                 .WillRepeatedly([&](const renderengine::DisplaySettings& displaySettings,
                                     const std::vector<renderengine::LayerSettings>&,
                                     const std::shared_ptr<renderengine::ExternalTexture>&,
-                                    base::unique_fd&&) -> std::future<FenceResult> {
+                                    base::unique_fd&&) -> ftl::Future<FenceResult> {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.physicalDisplay);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.clip);
                     EXPECT_EQ(ui::Dataspace::UNKNOWN, displaySettings.outputDataspace);
-                    return futureOf<FenceResult>(Fence::NO_FENCE);
+                    return ftl::yield<FenceResult>(Fence::NO_FENCE);
                 });
     }
 
@@ -578,7 +571,7 @@
                 .WillOnce([&](const renderengine::DisplaySettings& displaySettings,
                               const std::vector<renderengine::LayerSettings>& layerSettings,
                               const std::shared_ptr<renderengine::ExternalTexture>&,
-                              base::unique_fd&&) -> std::future<FenceResult> {
+                              base::unique_fd&&) -> ftl::Future<FenceResult> {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.physicalDisplay);
@@ -586,7 +579,8 @@
                               displaySettings.clip);
                     // screen capture adds an additional color layer as an alpha
                     // prefill, so gtet the back layer.
-                    std::future<FenceResult> resultFuture = futureOf<FenceResult>(Fence::NO_FENCE);
+                    ftl::Future<FenceResult> resultFuture =
+                            ftl::yield<FenceResult>(Fence::NO_FENCE);
                     if (layerSettings.empty()) {
                         ADD_FAILURE() << "layerSettings was not expected to be empty in "
                                          "setupREBufferCompositionCommonCallExpectations "
@@ -627,7 +621,7 @@
                 .WillOnce([&](const renderengine::DisplaySettings& displaySettings,
                               const std::vector<renderengine::LayerSettings>& layerSettings,
                               const std::shared_ptr<renderengine::ExternalTexture>&,
-                              base::unique_fd&&) -> std::future<FenceResult> {
+                              base::unique_fd&&) -> ftl::Future<FenceResult> {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.physicalDisplay);
@@ -635,7 +629,8 @@
                               displaySettings.clip);
                     // screen capture adds an additional color layer as an alpha
                     // prefill, so get the back layer.
-                    std::future<FenceResult> resultFuture = futureOf<FenceResult>(Fence::NO_FENCE);
+                    ftl::Future<FenceResult> resultFuture =
+                            ftl::yield<FenceResult>(Fence::NO_FENCE);
                     if (layerSettings.empty()) {
                         ADD_FAILURE()
                                 << "layerSettings was not expected to be empty in "
@@ -709,7 +704,7 @@
                 .WillOnce([&](const renderengine::DisplaySettings& displaySettings,
                               const std::vector<renderengine::LayerSettings>& layerSettings,
                               const std::shared_ptr<renderengine::ExternalTexture>&,
-                              base::unique_fd&&) -> std::future<FenceResult> {
+                              base::unique_fd&&) -> ftl::Future<FenceResult> {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
                               displaySettings.physicalDisplay);
@@ -717,7 +712,8 @@
                               displaySettings.clip);
                     // screen capture adds an additional color layer as an alpha
                     // prefill, so get the back layer.
-                    std::future<FenceResult> resultFuture = futureOf<FenceResult>(Fence::NO_FENCE);
+                    ftl::Future<FenceResult> resultFuture =
+                            ftl::yield<FenceResult>(Fence::NO_FENCE);
                     if (layerSettings.empty()) {
                         ADD_FAILURE() << "layerSettings was not expected to be empty in "
                                          "setupInsecureREBufferCompositionCommonCallExpectations "
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
index 1379665..fa31643 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
@@ -80,8 +80,7 @@
                             std::unique_ptr<EventThread>(mEventThread),
                             std::unique_ptr<EventThread>(mSFEventThread),
                             TestableSurfaceFlinger::DefaultDisplayMode{displayId},
-                            TestableSurfaceFlinger::SchedulerCallbackImpl::kMock,
-                            TestableSurfaceFlinger::VsyncTrackerCallbackImpl::kMock);
+                            TestableSurfaceFlinger::SchedulerCallbackImpl::kMock);
 }
 
 void DisplayTransactionTest::injectMockComposer(int virtualDisplayCount) {
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index 45db0c5..d5ec654 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -85,6 +85,7 @@
     bool throttleVsync(TimePoint, uid_t) override;
     Period getVsyncPeriod(uid_t) override;
     void resync() override;
+    void onExpectedPresentTimePosted(TimePoint) override;
 
     void setupEventThread();
     sp<MockEventThreadConnection> createConnection(ConnectionEventRecorder& recorder,
@@ -107,6 +108,7 @@
                                                       int32_t expectedConfigId,
                                                       nsecs_t expectedVsyncPeriod);
     void expectThrottleVsyncReceived(nsecs_t expectedTimestamp, uid_t);
+    void expectOnExpectedPresentTimePosted(nsecs_t expectedPresentTime);
     void expectUidFrameRateMappingEventReceivedByConnection(PhysicalDisplayId expectedDisplayId,
                                                             std::vector<FrameRateOverride>);
 
@@ -131,6 +133,7 @@
             mVSyncCallbackUnregisterRecorder;
     AsyncCallRecorder<void (*)()> mResyncCallRecorder;
     AsyncCallRecorder<void (*)(nsecs_t, uid_t)> mThrottleVsyncCallRecorder;
+    AsyncCallRecorder<void (*)(nsecs_t)> mOnExpectedPresentTimePostedRecorder;
     ConnectionEventRecorder mConnectionEventCallRecorder{0};
     ConnectionEventRecorder mThrottledConnectionEventCallRecorder{0};
 
@@ -190,6 +193,10 @@
     mResyncCallRecorder.recordCall();
 }
 
+void EventThreadTest::onExpectedPresentTimePosted(TimePoint expectedPresentTime) {
+    mOnExpectedPresentTimePostedRecorder.recordCall(expectedPresentTime.ns());
+}
+
 void EventThreadTest::setupEventThread() {
     mTokenManager = std::make_unique<frametimeline::impl::TokenManager>();
     mThread = std::make_unique<impl::EventThread>("EventThreadTest", mVsyncSchedule,
@@ -244,6 +251,12 @@
     EXPECT_EQ(uid, std::get<1>(args.value()));
 }
 
+void EventThreadTest::expectOnExpectedPresentTimePosted(nsecs_t expectedPresentTime) {
+    auto args = mOnExpectedPresentTimePostedRecorder.waitForCall();
+    ASSERT_TRUE(args.has_value());
+    EXPECT_EQ(expectedPresentTime, std::get<0>(args.value()));
+}
+
 void EventThreadTest::expectVsyncEventReceivedByConnection(
         const char* name, ConnectionEventRecorder& connectionEventRecorder,
         nsecs_t expectedTimestamp, unsigned expectedCount) {
@@ -410,6 +423,7 @@
     onVSyncEvent(123, 456, 789);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
+    expectOnExpectedPresentTimePosted(456);
 
     // EventThread is requesting one more callback due to VsyncRequest::SingleSuppressCallback
     expectVSyncCallbackScheduleReceived(true);
@@ -562,16 +576,19 @@
     onVSyncEvent(123, 456, 789);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
+    expectOnExpectedPresentTimePosted(456);
 
     // A second event should go to the same places.
     onVSyncEvent(456, 123, 0);
     expectThrottleVsyncReceived(123, mConnectionUid);
     expectVsyncEventReceivedByConnection(456, 2u);
+    expectOnExpectedPresentTimePosted(123);
 
     // A third event should go to the same places.
     onVSyncEvent(789, 777, 111);
     expectThrottleVsyncReceived(777, mConnectionUid);
     expectVsyncEventReceivedByConnection(789, 3u);
+    expectOnExpectedPresentTimePosted(777);
 }
 
 TEST_F(EventThreadTest, setVsyncRateTwoPostsEveryOtherEventToThatConnection) {
diff --git a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
index a5c0657..a25804c 100644
--- a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
@@ -104,7 +104,7 @@
 
 TEST_F(HWComposerTest, getActiveMode) {
     // Unknown display.
-    EXPECT_EQ(mHwc.getActiveMode(PhysicalDisplayId::fromPort(0)), std::nullopt);
+    EXPECT_EQ(mHwc.getActiveMode(PhysicalDisplayId::fromPort(0)), ftl::Unexpected(BAD_INDEX));
 
     constexpr hal::HWDisplayId kHwcDisplayId = 2;
     expectHotplugConnect(kHwcDisplayId);
@@ -117,14 +117,20 @@
         EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
                 .WillOnce(Return(HalError::BAD_DISPLAY));
 
-        EXPECT_EQ(mHwc.getActiveMode(info->id), std::nullopt);
+        EXPECT_EQ(mHwc.getActiveMode(info->id), ftl::Unexpected(UNKNOWN_ERROR));
+    }
+    {
+        EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
+                .WillOnce(Return(HalError::BAD_CONFIG));
+
+        EXPECT_EQ(mHwc.getActiveMode(info->id), ftl::Unexpected(NO_INIT));
     }
     {
         constexpr hal::HWConfigId kConfigId = 42;
         EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
                 .WillOnce(DoAll(SetArgPointee<1>(kConfigId), Return(HalError::NONE)));
 
-        EXPECT_EQ(mHwc.getActiveMode(info->id), kConfigId);
+        EXPECT_EQ(mHwc.getActiveMode(info->id).value_opt(), kConfigId);
     }
 }
 
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
index 734fddb..110f324 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
@@ -165,12 +165,8 @@
                                                   DisplayModeId(0));
 
     mock::SchedulerCallback mSchedulerCallback;
-    mock::VsyncTrackerCallback mVsyncTrackerCallback;
-
     TestableSurfaceFlinger mFlinger;
-
-    TestableScheduler* mScheduler =
-            new TestableScheduler(mSelector, mFlinger, mSchedulerCallback, mVsyncTrackerCallback);
+    TestableScheduler* mScheduler = new TestableScheduler(mSelector, mFlinger, mSchedulerCallback);
 };
 
 namespace {
@@ -1030,6 +1026,7 @@
 };
 
 TEST_F(SmallAreaDetectionTest, SmallDirtyLayer) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();
@@ -1047,6 +1044,7 @@
 }
 
 TEST_F(SmallAreaDetectionTest, NotSmallDirtyLayer) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();
@@ -1064,6 +1062,7 @@
 }
 
 TEST_F(SmallAreaDetectionTest, smallDirtyLayerWithMatrix) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
index 9456e37..bc06a31 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
@@ -146,11 +146,8 @@
                                                   DisplayModeId(0));
 
     mock::SchedulerCallback mSchedulerCallback;
-
-    mock::VsyncTrackerCallback mVsyncTrackerCallback;
     TestableSurfaceFlinger mFlinger;
-    TestableScheduler* mScheduler =
-            new TestableScheduler(mSelector, mFlinger, mSchedulerCallback, mVsyncTrackerCallback);
+    TestableScheduler* mScheduler = new TestableScheduler(mSelector, mFlinger, mSchedulerCallback);
 };
 
 namespace {
diff --git a/services/surfaceflinger/tests/unittests/LayerInfoTest.cpp b/services/surfaceflinger/tests/unittests/LayerInfoTest.cpp
index 22cfbd8..9fe9ee8 100644
--- a/services/surfaceflinger/tests/unittests/LayerInfoTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerInfoTest.cpp
@@ -64,10 +64,8 @@
                                                                               HI_FPS)),
                                                   DisplayModeId(0));
     mock::SchedulerCallback mSchedulerCallback;
-    mock::VsyncTrackerCallback mVsyncTrackerCallback;
     TestableSurfaceFlinger mFlinger;
-    TestableScheduler* mScheduler =
-            new TestableScheduler(mSelector, mFlinger, mSchedulerCallback, mVsyncTrackerCallback);
+    TestableScheduler* mScheduler = new TestableScheduler(mSelector, mFlinger, mSchedulerCallback);
 };
 
 namespace {
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 13b47ff..3baa48d 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -1237,4 +1237,25 @@
     EXPECT_TRUE(foundInputLayer);
 }
 
+TEST_F(LayerSnapshotTest, canOccludePresentation) {
+    setFlags(12, layer_state_t::eCanOccludePresentation, layer_state_t::eCanOccludePresentation);
+    LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
+                                    .layerLifecycleManager = mLifecycleManager,
+                                    .includeMetadata = false,
+                                    .displays = mFrontEndDisplayInfos,
+                                    .displayChanges = false,
+                                    .globalShadowSettings = globalShadowSettings,
+                                    .supportsBlur = true,
+                                    .supportedLayerGenericMetadata = {},
+                                    .genericLayerMetadataKeyMap = {}};
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+
+    EXPECT_EQ(getSnapshot(1)->inputInfo.canOccludePresentation, false);
+
+    // ensure we can set the property on the window info for layer and all its children
+    EXPECT_EQ(getSnapshot(12)->inputInfo.canOccludePresentation, true);
+    EXPECT_EQ(getSnapshot(121)->inputInfo.canOccludePresentation, true);
+    EXPECT_EQ(getSnapshot(1221)->inputInfo.canOccludePresentation, true);
+}
+
 } // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp b/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
index 249ed40..f5661fc 100644
--- a/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
+++ b/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
@@ -41,6 +41,7 @@
         return {};
     }
     void sample() override {}
+    void sendNotifyExpectedPresentHint(PhysicalDisplayId) {}
 } gNoOpCompositor;
 
 class TestableMessageQueue : public impl::MessageQueue {
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
index c03cbd7..39a8aac 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
@@ -103,7 +103,7 @@
     auto& mutableGetRankedRefreshRatesCache() { return mGetRankedFrameRatesCache; }
 
     auto getRankedFrameRates(const std::vector<LayerRequirement>& layers,
-                             GlobalSignals signals) const {
+                             GlobalSignals signals = {}) const {
         const auto result = RefreshRateSelector::getRankedFrameRates(layers, signals);
 
         EXPECT_TRUE(std::is_sorted(result.ranking.begin(), result.ranking.end(),
@@ -1619,10 +1619,11 @@
     lr1.name = "ExplicitCategory HighHint";
     lr2.vote = LayerVoteType::NoVote;
     lr2.name = "NoVote";
-    auto actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    auto actualRankedFrameRates = selector.getRankedFrameRates(layers);
     // Gets touch boost
-    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
-    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+    EXPECT_EQ(120_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+    EXPECT_TRUE(actualRankedFrameRates.consideredSignals.touch);
 
     // No touch boost, for example a game that uses setFrameRate(30, default compatibility).
     lr1.vote = LayerVoteType::ExplicitCategory;
@@ -1631,9 +1632,10 @@
     lr2.vote = LayerVoteType::ExplicitDefault;
     lr2.desiredRefreshRate = 30_Hz;
     lr2.name = "30Hz ExplicitDefault";
-    actualFrameRateMode = selector.getBestFrameRateMode(layers);
-    EXPECT_EQ(30_Hz, actualFrameRateMode.fps);
-    EXPECT_EQ(kModeId30, actualFrameRateMode.modePtr->getId());
+    actualRankedFrameRates = selector.getRankedFrameRates(layers);
+    EXPECT_EQ(30_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+    EXPECT_EQ(kModeId30, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+    EXPECT_FALSE(actualRankedFrameRates.consideredSignals.touch);
 
     lr1.vote = LayerVoteType::ExplicitCategory;
     lr1.frameRateCategory = FrameRateCategory::HighHint;
@@ -1641,10 +1643,11 @@
     lr2.vote = LayerVoteType::ExplicitCategory;
     lr2.frameRateCategory = FrameRateCategory::HighHint;
     lr2.name = "ExplicitCategory HighHint#2";
-    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    actualRankedFrameRates = selector.getRankedFrameRates(layers);
     // Gets touch boost
-    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
-    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+    EXPECT_EQ(120_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+    EXPECT_TRUE(actualRankedFrameRates.consideredSignals.touch);
 
     lr1.vote = LayerVoteType::ExplicitCategory;
     lr1.frameRateCategory = FrameRateCategory::HighHint;
@@ -1652,10 +1655,11 @@
     lr2.vote = LayerVoteType::ExplicitCategory;
     lr2.frameRateCategory = FrameRateCategory::Low;
     lr2.name = "ExplicitCategory Low";
-    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    actualRankedFrameRates = selector.getRankedFrameRates(layers);
     // Gets touch boost
-    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
-    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+    EXPECT_EQ(120_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+    EXPECT_TRUE(actualRankedFrameRates.consideredSignals.touch);
 
     lr1.vote = LayerVoteType::ExplicitCategory;
     lr1.frameRateCategory = FrameRateCategory::HighHint;
@@ -1663,10 +1667,11 @@
     lr2.vote = LayerVoteType::ExplicitExactOrMultiple;
     lr2.desiredRefreshRate = 30_Hz;
     lr2.name = "30Hz ExplicitExactOrMultiple";
-    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    actualRankedFrameRates = selector.getRankedFrameRates(layers);
     // Gets touch boost
-    EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
-    EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+    EXPECT_EQ(120_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+    EXPECT_EQ(kModeId120, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+    EXPECT_TRUE(actualRankedFrameRates.consideredSignals.touch);
 
     lr1.vote = LayerVoteType::ExplicitCategory;
     lr1.frameRateCategory = FrameRateCategory::HighHint;
@@ -1674,14 +1679,17 @@
     lr2.vote = LayerVoteType::ExplicitExact;
     lr2.desiredRefreshRate = 30_Hz;
     lr2.name = "30Hz ExplicitExact";
-    actualFrameRateMode = selector.getBestFrameRateMode(layers);
+    actualRankedFrameRates = selector.getRankedFrameRates(layers);
     if (selector.supportsAppFrameRateOverrideByContent()) {
         // Gets touch boost
-        EXPECT_EQ(120_Hz, actualFrameRateMode.fps);
-        EXPECT_EQ(kModeId120, actualFrameRateMode.modePtr->getId());
+        EXPECT_EQ(120_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+        EXPECT_EQ(kModeId120,
+                  actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+        EXPECT_TRUE(actualRankedFrameRates.consideredSignals.touch);
     } else {
-        EXPECT_EQ(30_Hz, actualFrameRateMode.fps);
-        EXPECT_EQ(kModeId30, actualFrameRateMode.modePtr->getId());
+        EXPECT_EQ(30_Hz, actualRankedFrameRates.ranking.front().frameRateMode.fps);
+        EXPECT_EQ(kModeId30, actualRankedFrameRates.ranking.front().frameRateMode.modePtr->getId());
+        EXPECT_FALSE(actualRankedFrameRates.consideredSignals.touch);
     }
 }
 
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 6986689..b059525 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -95,10 +95,8 @@
                                                   kDisplay1Mode60->getId());
 
     mock::SchedulerCallback mSchedulerCallback;
-    mock::VsyncTrackerCallback mVsyncTrackerCallback;
     TestableSurfaceFlinger mFlinger;
-    TestableScheduler* mScheduler =
-            new TestableScheduler{mSelector, mFlinger, mSchedulerCallback, mVsyncTrackerCallback};
+    TestableScheduler* mScheduler = new TestableScheduler{mSelector, mFlinger, mSchedulerCallback};
     surfaceflinger::frontend::LayerHierarchyBuilder mLayerHierarchyBuilder;
 
     ConnectionHandle mConnectionHandle;
@@ -341,6 +339,61 @@
     EXPECT_EQ(choice->get(), DisplayModeChoice({120_Hz, kDisplay1Mode120}, globalSignals));
 }
 
+TEST_F(SchedulerTest, chooseDisplayModesSingleDisplayHighHintTouchSignal) {
+    mScheduler->registerDisplay(kDisplayId1,
+                                std::make_shared<RefreshRateSelector>(kDisplay1Modes,
+                                                                      kDisplay1Mode60->getId()));
+
+    using DisplayModeChoice = TestableScheduler::DisplayModeChoice;
+
+    std::vector<RefreshRateSelector::LayerRequirement> layers =
+            std::vector<RefreshRateSelector::LayerRequirement>({{.weight = 1.f}, {.weight = 1.f}});
+    auto& lr1 = layers[0];
+    auto& lr2 = layers[1];
+
+    // Scenario that is similar to game. Expects no touch boost.
+    lr1.vote = RefreshRateSelector::LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = RefreshRateSelector::LayerVoteType::ExplicitDefault;
+    lr2.desiredRefreshRate = 30_Hz;
+    lr2.name = "30Hz ExplicitDefault";
+    mScheduler->setContentRequirements(layers);
+    auto modeChoices = mScheduler->chooseDisplayModes();
+    ASSERT_EQ(1u, modeChoices.size());
+    auto choice = modeChoices.get(kDisplayId1);
+    ASSERT_TRUE(choice);
+    EXPECT_EQ(choice->get(), DisplayModeChoice({60_Hz, kDisplay1Mode60}, {.touch = false}));
+
+    // Scenario that is similar to video playback and interaction. Expects touch boost.
+    lr1.vote = RefreshRateSelector::LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = RefreshRateSelector::LayerVoteType::ExplicitExactOrMultiple;
+    lr2.desiredRefreshRate = 30_Hz;
+    lr2.name = "30Hz ExplicitExactOrMultiple";
+    mScheduler->setContentRequirements(layers);
+    modeChoices = mScheduler->chooseDisplayModes();
+    ASSERT_EQ(1u, modeChoices.size());
+    choice = modeChoices.get(kDisplayId1);
+    ASSERT_TRUE(choice);
+    EXPECT_EQ(choice->get(), DisplayModeChoice({120_Hz, kDisplay1Mode120}, {.touch = true}));
+
+    // Scenario with explicit category and HighHint. Expects touch boost.
+    lr1.vote = RefreshRateSelector::LayerVoteType::ExplicitCategory;
+    lr1.frameRateCategory = FrameRateCategory::HighHint;
+    lr1.name = "ExplicitCategory HighHint";
+    lr2.vote = RefreshRateSelector::LayerVoteType::ExplicitCategory;
+    lr2.frameRateCategory = FrameRateCategory::Low;
+    lr2.name = "ExplicitCategory Low";
+    mScheduler->setContentRequirements(layers);
+    modeChoices = mScheduler->chooseDisplayModes();
+    ASSERT_EQ(1u, modeChoices.size());
+    choice = modeChoices.get(kDisplayId1);
+    ASSERT_TRUE(choice);
+    EXPECT_EQ(choice->get(), DisplayModeChoice({120_Hz, kDisplay1Mode120}, {.touch = true}));
+}
+
 TEST_F(SchedulerTest, chooseDisplayModesMultipleDisplays) {
     mScheduler->registerDisplay(kDisplayId1,
                                 std::make_shared<RefreshRateSelector>(kDisplay1Modes,
@@ -516,6 +569,7 @@
         }
 
         void sample() override {}
+        void sendNotifyExpectedPresentHint(PhysicalDisplayId) override {}
     } compositor(*mScheduler);
 
     mScheduler->doFrameSignal(compositor, VsyncId(42));
@@ -568,7 +622,7 @@
                                                         frameRate.getPeriodNsecs())}));
     std::shared_ptr<VSyncPredictor> vrrTracker =
             std::make_shared<VSyncPredictor>(kMode, kHistorySize, kMinimumSamplesForPrediction,
-                                             kOutlierTolerancePercent, mVsyncTrackerCallback);
+                                             kOutlierTolerancePercent);
     std::shared_ptr<RefreshRateSelector> vrrSelectorPtr =
             std::make_shared<RefreshRateSelector>(makeModes(kMode), kMode->getId());
     TestableScheduler scheduler{std::make_unique<android::mock::VsyncController>(),
@@ -576,8 +630,7 @@
                                 vrrSelectorPtr,
                                 mFlinger.getFactory(),
                                 mFlinger.getTimeStats(),
-                                mSchedulerCallback,
-                                mVsyncTrackerCallback};
+                                mSchedulerCallback};
 
     scheduler.registerDisplay(kMode->getPhysicalDisplayId(), vrrSelectorPtr, vrrTracker);
     vrrSelectorPtr->setActiveMode(kMode->getId(), frameRate);
diff --git a/services/surfaceflinger/tests/unittests/StrongTypingTest.cpp b/services/surfaceflinger/tests/unittests/StrongTypingTest.cpp
deleted file mode 100644
index 45b7610..0000000
--- a/services/surfaceflinger/tests/unittests/StrongTypingTest.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include "Scheduler/StrongTyping.h"
-
-using namespace testing;
-
-namespace android {
-
-TEST(StrongTypeTest, comparison) {
-    using SpunkyType = StrongTyping<int, struct SpunkyTypeTag, Compare>;
-    SpunkyType f1(10);
-
-    EXPECT_TRUE(f1 == f1);
-    EXPECT_TRUE(SpunkyType(10) != SpunkyType(11));
-    EXPECT_FALSE(SpunkyType(31) != SpunkyType(31));
-
-    EXPECT_TRUE(SpunkyType(10) < SpunkyType(11));
-    EXPECT_TRUE(SpunkyType(-1) < SpunkyType(0));
-    EXPECT_FALSE(SpunkyType(-10) < SpunkyType(-20));
-
-    EXPECT_TRUE(SpunkyType(10) <= SpunkyType(11));
-    EXPECT_TRUE(SpunkyType(10) <= SpunkyType(10));
-    EXPECT_TRUE(SpunkyType(-10) <= SpunkyType(1));
-    EXPECT_FALSE(SpunkyType(10) <= SpunkyType(9));
-
-    EXPECT_TRUE(SpunkyType(11) >= SpunkyType(11));
-    EXPECT_TRUE(SpunkyType(12) >= SpunkyType(11));
-    EXPECT_FALSE(SpunkyType(11) >= SpunkyType(12));
-
-    EXPECT_FALSE(SpunkyType(11) > SpunkyType(12));
-    EXPECT_TRUE(SpunkyType(-11) < SpunkyType(7));
-}
-
-TEST(StrongTypeTest, addition) {
-    using FunkyType = StrongTyping<int, struct FunkyTypeTag, Compare, Add>;
-    FunkyType f2(22);
-    FunkyType f1(10);
-
-    EXPECT_THAT(f1 + f2, Eq(FunkyType(32)));
-    EXPECT_THAT(f2 + f1, Eq(FunkyType(32)));
-
-    EXPECT_THAT(++f1.value(), Eq(11));
-    EXPECT_THAT(f1.value(), Eq(11));
-    EXPECT_THAT(f1++.value(), Eq(11));
-    EXPECT_THAT(f1++.value(), Eq(12));
-    EXPECT_THAT(f1.value(), Eq(13));
-
-    auto f3 = f1;
-    EXPECT_THAT(f1, Eq(f3));
-    EXPECT_THAT(f1, Lt(f2));
-
-    f3 += f1;
-    EXPECT_THAT(f1.value(), Eq(13));
-    EXPECT_THAT(f3.value(), Eq(26));
-}
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp
new file mode 100644
index 0000000..f127213
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "LibSurfaceFlingerUnittests"
+
+#include "CommitAndCompositeTest.h"
+
+#define EXPECT_COLOR_MATRIX_CHANGED(current, drawing)               \
+    EXPECT_EQ(current, mFlinger.currentState().colorMatrixChanged); \
+    EXPECT_EQ(drawing, mFlinger.drawingState().colorMatrixChanged);
+
+namespace android {
+
+class ColorMatrixTest : public CommitAndCompositeTest {};
+
+TEST_F(ColorMatrixTest, colorMatrixChanged) {
+    EXPECT_COLOR_MATRIX_CHANGED(true, true);
+    mFlinger.mutableTransactionFlags() |= eTransactionNeeded;
+
+    mFlinger.commitAndComposite();
+    EXPECT_COLOR_MATRIX_CHANGED(false, false);
+
+    mFlinger.setDaltonizerType(ColorBlindnessType::Deuteranomaly);
+    EXPECT_COLOR_MATRIX_CHANGED(true, false);
+
+    mFlinger.commit();
+    EXPECT_COLOR_MATRIX_CHANGED(false, true);
+
+    mFlinger.commitAndComposite();
+    EXPECT_COLOR_MATRIX_CHANGED(false, false);
+}
+
+TEST_F(ColorMatrixTest, colorMatrixChangedAfterDisplayTransaction) {
+    EXPECT_COLOR_MATRIX_CHANGED(true, true);
+    mFlinger.mutableTransactionFlags() |= eTransactionNeeded;
+
+    mFlinger.commitAndComposite();
+    EXPECT_COLOR_MATRIX_CHANGED(false, false);
+
+    mFlinger.createDisplay(String8("Test Display"), false);
+
+    mFlinger.commit();
+    EXPECT_COLOR_MATRIX_CHANGED(false, true);
+
+    mFlinger.commitAndComposite();
+    EXPECT_COLOR_MATRIX_CHANGED(false, false);
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
index 8b16a8a..9efb503 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
@@ -24,6 +24,14 @@
 #include <ftl/fake_guard.h>
 #include <scheduler/Fps.h>
 
+#define EXPECT_SET_ACTIVE_CONFIG(displayId, modeId)                                 \
+    EXPECT_CALL(*mComposer,                                                         \
+                setActiveConfigWithConstraints(displayId,                           \
+                                               static_cast<hal::HWConfigId>(        \
+                                                       ftl::to_underlying(modeId)), \
+                                               _, _))                               \
+            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)))
+
 namespace android {
 namespace {
 
@@ -161,8 +169,7 @@
     mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
 
     mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90.value(), false, 0,
-                                                                     120));
+                                        mock::createDisplayModeSpecs(kModeId90, false, 0, 120));
 
     ASSERT_TRUE(mDisplay->getDesiredMode());
     EXPECT_EQ(mDisplay->getDesiredMode()->mode.modePtr->getId(), kModeId90);
@@ -170,10 +177,7 @@
 
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
 
     mFlinger.commit();
 
@@ -202,8 +206,7 @@
     mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
 
     mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90.value(), true, 0,
-                                                                     120));
+                                        mock::createDisplayModeSpecs(kModeId90, true, 0, 120));
 
     ASSERT_TRUE(mDisplay->getDesiredMode());
     EXPECT_EQ(mDisplay->getDesiredMode()->mode.modePtr->getId(), kModeId90);
@@ -212,10 +215,7 @@
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     // and complete the mode change.
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = false};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
 
     EXPECT_CALL(*mAppEventThread,
                 onModeChanged(scheduler::FrameRateMode{90_Hz, ftl::as_non_null(kMode90)}));
@@ -238,28 +238,20 @@
     mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
 
     mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90.value(), false, 0,
-                                                                     120));
+                                        mock::createDisplayModeSpecs(kModeId90, false, 0, 120));
 
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
 
     mFlinger.commit();
 
     mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId120.value(), false, 0,
-                                                                     180));
+                                        mock::createDisplayModeSpecs(kModeId120, false, 0, 180));
 
     ASSERT_TRUE(mDisplay->getDesiredMode());
     EXPECT_EQ(mDisplay->getDesiredMode()->mode.modePtr->getId(), kModeId120);
 
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                               hal::HWConfigId(kModeId120.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId120);
 
     mFlinger.commit();
 
@@ -281,8 +273,7 @@
     mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
 
     mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90_4K.value(), false, 0,
-                                                                     120));
+                                        mock::createDisplayModeSpecs(kModeId90_4K, false, 0, 120));
 
     ASSERT_TRUE(mDisplay->getDesiredMode());
     EXPECT_EQ(mDisplay->getDesiredMode()->mode.modePtr->getId(), kModeId90_4K);
@@ -291,10 +282,7 @@
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     // and complete the mode change.
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = false};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                               hal::HWConfigId(kModeId90_4K.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90_4K);
 
     EXPECT_CALL(*mAppEventThread, onHotplugReceived(mDisplay->getPhysicalId(), true));
 
@@ -331,7 +319,7 @@
     }
 
     if (arg->getDesiredMode()->mode.modePtr->getId() != modeId) {
-        *result_listener << "Unexpected desired mode " << modeId;
+        *result_listener << "Unexpected desired mode " << ftl::to_underlying(modeId);
         return false;
     }
 
@@ -345,14 +333,15 @@
 
 MATCHER_P(ModeSettledTo, modeId, "") {
     if (const auto desiredOpt = arg->getDesiredMode()) {
-        *result_listener << "Unsettled desired mode " << desiredOpt->mode.modePtr->getId();
+        *result_listener << "Unsettled desired mode "
+                         << ftl::to_underlying(desiredOpt->mode.modePtr->getId());
         return false;
     }
 
     ftl::FakeGuard guard(kMainThreadContext);
 
     if (arg->getActiveMode().modePtr->getId() != modeId) {
-        *result_listener << "Settled to unexpected active mode " << modeId;
+        *result_listener << "Settled to unexpected active mode " << ftl::to_underlying(modeId);
         return false;
     }
 
@@ -376,22 +365,19 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSettledTo(kModeId120));
 
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kInnerDisplayHwcId,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
 
     mFlinger.commit();
 
@@ -412,10 +398,7 @@
     EXPECT_THAT(innerDisplay, ModeSettledTo(kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
 
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kOuterDisplayHwcId,
-                                               hal::HWConfigId(kModeId60.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kOuterDisplayHwcId, kModeId60);
 
     mFlinger.commit();
 
@@ -447,27 +430,20 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
 
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kInnerDisplayHwcId,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
-
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kOuterDisplayHwcId,
-                                               hal::HWConfigId(kModeId60.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
+    EXPECT_SET_ACTIVE_CONFIG(kOuterDisplayHwcId, kModeId60);
 
     mFlinger.commit();
 
@@ -486,8 +462,8 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
 
@@ -495,10 +471,7 @@
     mDisplay->setPowerMode(hal::PowerMode::OFF);
 
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kInnerDisplayHwcId,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
 
     mFlinger.commit();
 
@@ -530,13 +503,13 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60.value(),
-                                                                               false, 0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, false,
+                                                                               0.f, 120.f)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
@@ -545,10 +518,7 @@
     outerDisplay->setPowerMode(hal::PowerMode::OFF);
 
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kInnerDisplayHwcId,
-                                               hal::HWConfigId(kModeId90.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
 
     mFlinger.commit();
 
@@ -567,10 +537,7 @@
     // Only the outer display is powered on.
     mFlinger.onActiveDisplayChanged(innerDisplay.get(), *outerDisplay);
 
-    EXPECT_CALL(*mComposer,
-                setActiveConfigWithConstraints(kOuterDisplayHwcId,
-                                               hal::HWConfigId(kModeId60.value()), _, _))
-            .WillOnce(DoAll(SetArgPointee<3>(timeline), Return(Error::NONE)));
+    EXPECT_SET_ACTIVE_CONFIG(kOuterDisplayHwcId, kModeId60);
 
     mFlinger.commit();
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_FoldableTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_FoldableTest.cpp
index 93c2829..19f8deb 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_FoldableTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_FoldableTest.cpp
@@ -17,11 +17,15 @@
 #undef LOG_TAG
 #define LOG_TAG "LibSurfaceFlingerUnittests"
 
+#include <com_android_graphics_surfaceflinger_flags.h>
+#include <common/test/FlagUtils.h>
 #include "DualDisplayTransactionTest.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+using namespace com::android::graphics::surfaceflinger;
+
 namespace android {
 namespace {
 
@@ -163,6 +167,7 @@
 }
 
 TEST_F(FoldableTest, requestVsyncOnPowerOn) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     EXPECT_CALL(mFlinger.scheduler()->mockRequestHardwareVsync, Call(kInnerDisplayId, true))
             .Times(1);
     EXPECT_CALL(mFlinger.scheduler()->mockRequestHardwareVsync, Call(kOuterDisplayId, true))
@@ -173,6 +178,7 @@
 }
 
 TEST_F(FoldableTest, disableVsyncOnPowerOffPacesetter) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     // When the device boots, the inner display should be the pacesetter.
     ASSERT_EQ(mFlinger.scheduler()->pacesetterDisplayId(), kInnerDisplayId);
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_GetDisplayStatsTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_GetDisplayStatsTest.cpp
index 29acfaa..4e9fba7 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_GetDisplayStatsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_GetDisplayStatsTest.cpp
@@ -17,79 +17,16 @@
 #undef LOG_TAG
 #define LOG_TAG "SurfaceFlingerGetDisplayStatsTest"
 
-#include <compositionengine/Display.h>
-#include <compositionengine/mock/DisplaySurface.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
-#include <renderengine/mock/RenderEngine.h>
 #include <ui/DisplayStatInfo.h>
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-#include "mock/DisplayHardware/MockPowerAdvisor.h"
-#include "mock/MockTimeStats.h"
-#include "mock/system/window/MockNativeWindow.h"
 
-using namespace android;
-using namespace testing;
+#include "CommitAndCompositeTest.h"
 
 namespace android {
 namespace {
-using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
-using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
 
-constexpr hal::HWDisplayId HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
-constexpr PhysicalDisplayId DEFAULT_DISPLAY_ID = PhysicalDisplayId::fromPort(42u);
-constexpr int DEFAULT_DISPLAY_WIDTH = 1920;
-constexpr int DEFAULT_DISPLAY_HEIGHT = 1024;
-
-class SurfaceFlingerGetDisplayStatsTest : public Test {
-public:
-    void SetUp() override;
-
-protected:
-    TestableSurfaceFlinger mFlinger;
-    renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
-    sp<DisplayDevice> mDisplay;
-    sp<compositionengine::mock::DisplaySurface> mDisplaySurface =
-            sp<compositionengine::mock::DisplaySurface>::make();
-    sp<mock::NativeWindow> mNativeWindow = sp<mock::NativeWindow>::make();
-    mock::TimeStats* mTimeStats = new mock::TimeStats();
-    Hwc2::mock::PowerAdvisor* mPowerAdvisor = nullptr;
-    Hwc2::mock::Composer* mComposer = nullptr;
-};
-
-void SurfaceFlingerGetDisplayStatsTest::SetUp() {
-    mFlinger.setupMockScheduler({.displayId = DEFAULT_DISPLAY_ID});
-    mComposer = new Hwc2::mock::Composer();
-    mPowerAdvisor = new Hwc2::mock::PowerAdvisor();
-    mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
-    mFlinger.setupTimeStats(std::shared_ptr<TimeStats>(mTimeStats));
-    mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
-    mFlinger.setupPowerAdvisor(std::unique_ptr<Hwc2::PowerAdvisor>(mPowerAdvisor));
-    static constexpr bool kIsPrimary = true;
-    FakeHwcDisplayInjector(DEFAULT_DISPLAY_ID, hal::DisplayType::PHYSICAL, kIsPrimary)
-            .setPowerMode(hal::PowerMode::ON)
-            .inject(&mFlinger, mComposer);
-    auto compostionEngineDisplayArgs =
-            compositionengine::DisplayCreationArgsBuilder()
-                    .setId(DEFAULT_DISPLAY_ID)
-                    .setPixels({DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT})
-                    .setPowerAdvisor(mPowerAdvisor)
-                    .setName("injected display")
-                    .build();
-    auto compositionDisplay =
-            compositionengine::impl::createDisplay(mFlinger.getCompositionEngine(),
-                                                   std::move(compostionEngineDisplayArgs));
-    mDisplay =
-            FakeDisplayDeviceInjector(mFlinger, compositionDisplay,
-                                      ui::DisplayConnectionType::Internal, HWC_DISPLAY, kIsPrimary)
-                    .setDisplaySurface(mDisplaySurface)
-                    .setNativeWindow(mNativeWindow)
-                    .setPowerMode(hal::PowerMode::ON)
-                    .setRefreshRateSelector(mFlinger.scheduler()->refreshRateSelector())
-                    .skipRegisterDisplay()
-                    .inject();
-}
+struct SurfaceFlingerGetDisplayStatsTest : CommitAndCompositeTest {};
 
 // TODO (b/277364366): Clients should be updated to pass in the display they want.
 TEST_F(SurfaceFlingerGetDisplayStatsTest, nullptrSucceeds) {
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
index a270dc9..897f9a0 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
@@ -17,8 +17,14 @@
 #undef LOG_TAG
 #define LOG_TAG "LibSurfaceFlingerUnittests"
 
+#include <aidl/android/hardware/graphics/common/DisplayHotplugEvent.h>
+#include <com_android_graphics_surfaceflinger_flags.h>
+#include <common/test/FlagUtils.h>
 #include "DisplayTransactionTestHelpers.h"
 
+using namespace com::android::graphics::surfaceflinger;
+using ::aidl::android::hardware::graphics::common::DisplayHotplugEvent;
+
 namespace android {
 
 class HotplugTest : public DisplayTransactionTest {};
@@ -87,6 +93,8 @@
 }
 
 TEST_F(HotplugTest, rejectsHotplugIfFailedToLoadDisplayModes) {
+    SET_FLAG_FOR_TEST(flags::connected_display, true);
+
     // Inject a primary display.
     PrimaryDisplayVariant::injectHwcDisplay(this);
 
@@ -94,6 +102,10 @@
     constexpr bool kFailedHotplug = true;
     ExternalDisplay::setupHwcHotplugCallExpectations<kFailedHotplug>(this);
 
+    EXPECT_CALL(*mEventThread,
+                onHotplugConnectionError(static_cast<int32_t>(DisplayHotplugEvent::ERROR_UNKNOWN)))
+            .Times(1);
+
     // Simulate a connect event that fails to load display modes due to HWC already having
     // disconnected the display but SF yet having to process the queued disconnect event.
     EXPECT_CALL(*mComposer, getActiveConfig(ExternalDisplay::HWC_DISPLAY_ID, _))
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyExpectedPresentTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyExpectedPresentTest.cpp
index 7206e29..91b9018 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyExpectedPresentTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyExpectedPresentTest.cpp
@@ -17,31 +17,81 @@
 #undef LOG_TAG
 #define LOG_TAG "LibSurfaceFlingerUnittests"
 
+#include <gui/SurfaceComposerClient.h>
 #include "DisplayTransactionTestHelpers.h"
 
 namespace android {
 
 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
+using android::hardware::graphics::composer::V2_1::Error;
 
 class NotifyExpectedPresentTest : public DisplayTransactionTest {
 public:
     void SetUp() override {
-        mDisplay = PrimaryDisplayVariant::makeFakeExistingDisplayInjector(this).inject();
-        FakeHwcDisplayInjector(mDisplay->getPhysicalId(), hal::DisplayType::PHYSICAL, kIsPrimary)
+        const auto display = PrimaryDisplayVariant::makeFakeExistingDisplayInjector(this).inject();
+        mPhysicalDisplayId = display->getPhysicalId();
+        FakeHwcDisplayInjector(mPhysicalDisplayId, hal::DisplayType::PHYSICAL, /*isPrimary=*/true)
                 .setPowerMode(hal::PowerMode::ON)
                 .inject(&mFlinger, mComposer);
+
+        ASSERT_NO_FATAL_FAILURE(mFlinger.setNotifyExpectedPresentData(mPhysicalDisplayId,
+                                                                      TimePoint::fromNs(0),
+                                                                      kFps60Hz));
+        mCompositor = std::make_unique<Compositor>(mPhysicalDisplayId, mFlinger);
     }
 
 protected:
-    sp<DisplayDevice> mDisplay;
-    static constexpr bool kIsPrimary = true;
-    static constexpr hal::HWDisplayId HWC_DISPLAY_ID =
-            FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
-};
+    struct Compositor final : ICompositor {
+        explicit Compositor(PhysicalDisplayId displayId, TestableSurfaceFlinger& surfaceFlinger)
+              : displayId(displayId), surfaceFlinger(surfaceFlinger) {}
 
-TEST_F(NotifyExpectedPresentTest, notifyExpectedPresentTimeout) {
-    const auto physicDisplayId = mDisplay->getPhysicalId();
-    auto expectedPresentTime = systemTime() + ms2ns(10);
+        void sendNotifyExpectedPresentHint(PhysicalDisplayId id) override {
+            surfaceFlinger.sendNotifyExpectedPresentHint(id);
+        }
+
+        bool commit(PhysicalDisplayId, const scheduler::FrameTargets&) override {
+            return committed;
+        }
+
+        CompositeResultsPerDisplay composite(PhysicalDisplayId pacesetterId,
+                                             const scheduler::FrameTargeters& targeters) override {
+            pacesetterIds.composite = pacesetterId;
+            CompositeResultsPerDisplay results;
+
+            for (const auto& [id, targeter] : targeters) {
+                vsyncIds.composite.emplace_back(id, targeter->target().vsyncId());
+                surfaceFlinger.resetNotifyExpectedPresentHintState(pacesetterId);
+                results.try_emplace(id,
+                                    CompositeResult{.compositionCoverage =
+                                                            CompositionCoverage::Hwc});
+            }
+
+            return results;
+        }
+
+        void sample() override {}
+        void configure() override {}
+
+        struct {
+            PhysicalDisplayId commit;
+            PhysicalDisplayId composite;
+        } pacesetterIds;
+
+        using VsyncIds = std::vector<std::pair<PhysicalDisplayId, VsyncId>>;
+        struct {
+            VsyncIds commit;
+            VsyncIds composite;
+        } vsyncIds;
+
+        bool committed = true;
+        PhysicalDisplayId displayId;
+        TestableSurfaceFlinger& surfaceFlinger;
+    };
+
+    PhysicalDisplayId mPhysicalDisplayId;
+    std::unique_ptr<Compositor> mCompositor;
+    static constexpr hal::HWDisplayId kHwcDisplayId =
+            FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
     static constexpr Fps kFps60Hz = 60_Hz;
     static constexpr int32_t kFrameInterval5HzNs = static_cast<Fps>(5_Hz).getPeriodNsecs();
     static constexpr int32_t kFrameInterval60HzNs = kFps60Hz.getPeriodNsecs();
@@ -49,89 +99,171 @@
     static constexpr Period kVsyncPeriod =
             Period::fromNs(static_cast<Fps>(240_Hz).getPeriodNsecs());
     static constexpr Period kTimeoutNs = Period::fromNs(kFrameInterval5HzNs);
-    static constexpr auto kLastExpectedPresentTimestamp = TimePoint::fromNs(0);
+};
 
-    ASSERT_NO_FATAL_FAILURE(mFlinger.setNotifyExpectedPresentData(physicDisplayId,
-                                                                  kLastExpectedPresentTimestamp,
-                                                                  kFps60Hz));
-
-    {
-        // Very first ExpectedPresent after idle, no previous timestamp
-        EXPECT_CALL(*mComposer,
-                    notifyExpectedPresent(HWC_DISPLAY_ID, expectedPresentTime,
-                                          kFrameInterval60HzNs))
-                .WillOnce(Return(Error::NONE));
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
-                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
-                                                 kTimeoutNs);
-    }
-    {
-        // Absent timeoutNs
+TEST_F(NotifyExpectedPresentTest, noNotifyExpectedPresentHintCall_absentTimeout) {
+    auto expectedPresentTime = systemTime() + ms2ns(10);
+    ASSERT_NO_FATAL_FAILURE(
+            mFlinger.setNotifyExpectedPresentData(mPhysicalDisplayId,
+                                                  TimePoint::fromNs(expectedPresentTime),
+                                                  kFps60Hz));
+    EXPECT_CALL(*mComposer, notifyExpectedPresent(kHwcDisplayId, _, _)).Times(0);
+    for (int i = 0; i < 5; i++) {
         expectedPresentTime += 2 * kFrameInterval5HzNs;
-        EXPECT_CALL(*mComposer, notifyExpectedPresent(HWC_DISPLAY_ID, _, _)).Times(0);
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
                                                  TimePoint::fromNs(expectedPresentTime), kFps60Hz,
                                                  /*timeoutOpt*/ std::nullopt);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
     }
+}
+
+TEST_F(NotifyExpectedPresentTest, notifyExpectedPresentHint_zeroTimeout) {
+    auto expectedPresentTime = systemTime() + ms2ns(10);
     {
-        // Timeout is 0
-        expectedPresentTime += kFrameInterval60HzNs;
+        // Very first ExpectedPresent after idle, no previous timestamp.
         EXPECT_CALL(*mComposer,
-                    notifyExpectedPresent(HWC_DISPLAY_ID, expectedPresentTime,
-                                          kFrameInterval60HzNs))
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
                 .WillOnce(Return(Error::NONE));
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
-                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
-                                                 Period::fromNs(0));
-    }
-    {
-        // ExpectedPresent is after the timeoutNs
-        expectedPresentTime += 2 * kFrameInterval5HzNs;
-        EXPECT_CALL(*mComposer,
-                    notifyExpectedPresent(HWC_DISPLAY_ID, expectedPresentTime,
-                                          kFrameInterval60HzNs))
-                .WillOnce(Return(Error::NONE));
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
                                                  TimePoint::fromNs(expectedPresentTime), kFps60Hz,
                                                  kTimeoutNs);
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+
+        // Present frame
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        // Present happens and NotifyExpectedPresentHintStatus is start.
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
+    }
+    {
+        mCompositor->committed = false;
+        expectedPresentTime += kFrameInterval60HzNs;
+        EXPECT_CALL(*mComposer,
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
+                .WillOnce(Return(Error::NONE));
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
+                                                 Period::fromNs(0));
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        // Hint sent
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+    }
+    {
+        expectedPresentTime += kFrameInterval60HzNs;
+        EXPECT_CALL(*mComposer,
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
+                .WillOnce(Return(Error::NONE));
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
+                                                 Period::fromNs(0));
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        // Hint is executed
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+    }
+}
+
+TEST_F(NotifyExpectedPresentTest, notifyExpectedPresentTimeout) {
+    auto expectedPresentTime = systemTime() + ms2ns(10);
+    {
+        // Very first ExpectedPresent after idle, no previous timestamp
+        mCompositor->committed = false;
+        EXPECT_CALL(*mComposer,
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
+                .WillOnce(Return(Error::NONE));
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
+                                                 kTimeoutNs);
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+    }
+    {
+        // ExpectedPresentTime is after the timeoutNs
+        mCompositor->committed = true;
+        expectedPresentTime += 2 * kFrameInterval5HzNs;
+        EXPECT_CALL(*mComposer, notifyExpectedPresent(kHwcDisplayId, _, _)).Times(0);
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
+                                                 kTimeoutNs);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        // Present happens notifyExpectedPresentHintStatus is Start
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
+
+        // Another expectedPresent after timeout
+        expectedPresentTime += 2 * kFrameInterval5HzNs;
+        EXPECT_CALL(*mComposer,
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
+                .WillOnce(Return(Error::NONE));
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime), kFps60Hz,
+                                                 kTimeoutNs);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
     }
     {
         // ExpectedPresent has not changed
-        EXPECT_CALL(*mComposer, notifyExpectedPresent(HWC_DISPLAY_ID, _, _)).Times(0);
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
+        EXPECT_CALL(*mComposer, notifyExpectedPresent(kHwcDisplayId, _, _)).Times(0);
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
                                                  TimePoint::fromNs(expectedPresentTime), kFps60Hz,
                                                  kTimeoutNs);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
     }
     {
-        // ExpectedPresent is after the last reported ExpectedPresent.
+        // ExpectedPresent is after the last reported ExpectedPresent and within timeout.
         expectedPresentTime += kFrameInterval60HzNs;
-        EXPECT_CALL(*mComposer, notifyExpectedPresent(HWC_DISPLAY_ID, _, _)).Times(0);
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
+        EXPECT_CALL(*mComposer, notifyExpectedPresent(kHwcDisplayId, _, _)).Times(0);
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
                                                  TimePoint::fromNs(expectedPresentTime), kFps60Hz,
                                                  kTimeoutNs);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintStatusIsStart(mPhysicalDisplayId));
     }
     {
         // ExpectedPresent is before the last reported ExpectedPresent but after the timeoutNs,
         // representing we changed our decision and want to present earlier than previously
         // reported.
+        mCompositor->committed = false;
         expectedPresentTime -= kFrameInterval120HzNs;
         EXPECT_CALL(*mComposer,
-                    notifyExpectedPresent(HWC_DISPLAY_ID, expectedPresentTime,
-                                          kFrameInterval60HzNs))
+                    notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, kFrameInterval60HzNs))
                 .WillOnce(Return(Error::NONE));
-        mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
                                                  TimePoint::fromNs(expectedPresentTime), kFps60Hz,
                                                  kTimeoutNs);
+        EXPECT_TRUE(
+                mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime));
+        ASSERT_TRUE(mFlinger.verifyHintIsScheduledOnPresent(mPhysicalDisplayId));
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+        ASSERT_TRUE(mFlinger.verifyHintIsSent(mPhysicalDisplayId));
     }
 }
 
 TEST_F(NotifyExpectedPresentTest, notifyExpectedPresentRenderRateChanged) {
-    const auto physicDisplayId = mDisplay->getPhysicalId();
     const auto now = systemTime();
     auto expectedPresentTime = now;
     static constexpr Period kTimeoutNs = Period::fromNs(static_cast<Fps>(1_Hz).getPeriodNsecs());
 
-    ASSERT_NO_FATAL_FAILURE(mFlinger.setNotifyExpectedPresentData(physicDisplayId,
+    ASSERT_NO_FATAL_FAILURE(mFlinger.setNotifyExpectedPresentData(mPhysicalDisplayId,
                                                                   TimePoint::fromNs(now),
                                                                   Fps::fromValue(0)));
     static constexpr int32_t kFrameIntervalNs120Hz = static_cast<Fps>(120_Hz).getPeriodNsecs();
@@ -147,7 +279,7 @@
 
     struct FrameRateIntervalTestData {
         int32_t frameIntervalNs;
-        bool callExpectedPresent;
+        bool callNotifyExpectedPresentHint;
     };
     const std::vector<FrameRateIntervalTestData> frameIntervals = {
             {kFrameIntervalNs60Hz, true},  {kFrameIntervalNs96Hz, true},
@@ -159,21 +291,35 @@
             {kFrameIntervalNs20Hz, false}, {kFrameIntervalNs120Hz, true},
     };
 
-    for (const auto& [frameIntervalNs, callExpectedPresent] : frameIntervals) {
-        {
-            expectedPresentTime += frameIntervalNs;
-            if (callExpectedPresent) {
-                EXPECT_CALL(*mComposer,
-                            notifyExpectedPresent(HWC_DISPLAY_ID, expectedPresentTime,
-                                                  frameIntervalNs))
-                        .WillOnce(Return(Error::NONE));
-            } else {
-                EXPECT_CALL(*mComposer, notifyExpectedPresent(HWC_DISPLAY_ID, _, _)).Times(0);
-            }
-            mFlinger.notifyExpectedPresentIfRequired(physicDisplayId, kVsyncPeriod,
-                                                     TimePoint::fromNs(expectedPresentTime),
-                                                     Fps::fromPeriodNsecs(frameIntervalNs),
-                                                     kTimeoutNs);
+    for (size_t i = 0; i < frameIntervals.size(); i++) {
+        const auto& [frameIntervalNs, callNotifyExpectedPresentHint] = frameIntervals[i];
+        expectedPresentTime += frameIntervalNs;
+        mFlinger.notifyExpectedPresentIfRequired(mPhysicalDisplayId, kVsyncPeriod,
+                                                 TimePoint::fromNs(expectedPresentTime),
+                                                 Fps::fromPeriodNsecs(frameIntervalNs), kTimeoutNs);
+
+        if (callNotifyExpectedPresentHint) {
+            mCompositor->committed = false;
+            ASSERT_TRUE(mFlinger.verifyHintIsScheduledOnPresent(mPhysicalDisplayId))
+                    << "Hint not scheduled for frameInterval " << frameIntervalNs << " at index "
+                    << i;
+            EXPECT_CALL(*mComposer,
+                        notifyExpectedPresent(kHwcDisplayId, expectedPresentTime, frameIntervalNs))
+                    .WillOnce(Return(Error::NONE));
+        } else {
+            // Only lastExpectedPresentTime is updated
+            EXPECT_TRUE(
+                    mFlinger.verifyLastExpectedPresentTime(mPhysicalDisplayId, expectedPresentTime))
+                    << "LastExpectedPresentTime for frameInterval " << frameIntervalNs
+                    << "at index " << i << " did not match for frameInterval " << frameIntervalNs;
+            EXPECT_CALL(*mComposer, notifyExpectedPresent(kHwcDisplayId, _, _)).Times(0);
+        }
+        mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
+
+        if (callNotifyExpectedPresentHint) {
+            // Present resumes the calls to the notifyExpectedPresentHint.
+            mCompositor->committed = true;
+            mFlinger.scheduler()->doFrameSignal(*mCompositor, VsyncId{42});
         }
     }
 }
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_PowerHintTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_PowerHintTest.cpp
index b80cb66..c3934e6 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_PowerHintTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_PowerHintTest.cpp
@@ -17,84 +17,18 @@
 #undef LOG_TAG
 #define LOG_TAG "SurfaceFlingerPowerHintTest"
 
-#include <compositionengine/Display.h>
-#include <compositionengine/mock/DisplaySurface.h>
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <renderengine/mock/RenderEngine.h>
-#include <algorithm>
 #include <chrono>
-#include <memory>
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-#include "mock/DisplayHardware/MockPowerAdvisor.h"
-#include "mock/MockTimeStats.h"
-#include "mock/system/window/MockNativeWindow.h"
 
-using namespace android;
-using namespace android::Hwc2::mock;
-using namespace android::hardware::power;
+#include "CommitAndCompositeTest.h"
+
 using namespace std::chrono_literals;
-using namespace testing;
+using testing::_;
+using testing::Return;
 
 namespace android {
 namespace {
-using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
-using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
 
-constexpr hal::HWDisplayId HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
-constexpr PhysicalDisplayId DEFAULT_DISPLAY_ID = PhysicalDisplayId::fromPort(42u);
-constexpr int DEFAULT_DISPLAY_WIDTH = 1920;
-constexpr int DEFAULT_DISPLAY_HEIGHT = 1024;
-
-class SurfaceFlingerPowerHintTest : public Test {
-public:
-    void SetUp() override;
-
-protected:
-    TestableSurfaceFlinger mFlinger;
-    renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
-    sp<DisplayDevice> mDisplay;
-    sp<compositionengine::mock::DisplaySurface> mDisplaySurface =
-            sp<compositionengine::mock::DisplaySurface>::make();
-    sp<mock::NativeWindow> mNativeWindow = sp<mock::NativeWindow>::make();
-    mock::TimeStats* mTimeStats = new mock::TimeStats();
-    Hwc2::mock::PowerAdvisor* mPowerAdvisor = nullptr;
-    Hwc2::mock::Composer* mComposer = nullptr;
-};
-
-void SurfaceFlingerPowerHintTest::SetUp() {
-    mFlinger.setupMockScheduler({.displayId = DEFAULT_DISPLAY_ID});
-    mComposer = new Hwc2::mock::Composer();
-    mPowerAdvisor = new Hwc2::mock::PowerAdvisor();
-    mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
-    mFlinger.setupTimeStats(std::shared_ptr<TimeStats>(mTimeStats));
-    mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
-    mFlinger.setupPowerAdvisor(std::unique_ptr<Hwc2::PowerAdvisor>(mPowerAdvisor));
-    static constexpr bool kIsPrimary = true;
-    FakeHwcDisplayInjector(DEFAULT_DISPLAY_ID, hal::DisplayType::PHYSICAL, kIsPrimary)
-            .setPowerMode(hal::PowerMode::ON)
-            .inject(&mFlinger, mComposer);
-    auto compostionEngineDisplayArgs =
-            compositionengine::DisplayCreationArgsBuilder()
-                    .setId(DEFAULT_DISPLAY_ID)
-                    .setPixels({DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT})
-                    .setPowerAdvisor(mPowerAdvisor)
-                    .setName("injected display")
-                    .build();
-    auto compositionDisplay =
-            compositionengine::impl::createDisplay(mFlinger.getCompositionEngine(),
-                                                   std::move(compostionEngineDisplayArgs));
-    mDisplay =
-            FakeDisplayDeviceInjector(mFlinger, compositionDisplay,
-                                      ui::DisplayConnectionType::Internal, HWC_DISPLAY, kIsPrimary)
-                    .setDisplaySurface(mDisplaySurface)
-                    .setNativeWindow(mNativeWindow)
-                    .setPowerMode(hal::PowerMode::ON)
-                    .setRefreshRateSelector(mFlinger.scheduler()->refreshRateSelector())
-                    .skipRegisterDisplay()
-                    .inject();
-}
+class SurfaceFlingerPowerHintTest : public CommitAndCompositeTest {};
 
 TEST_F(SurfaceFlingerPowerHintTest, sendDurationsIncludingHwcWaitTime) {
     ON_CALL(*mPowerAdvisor, usePowerHintSession()).WillByDefault(Return(true));
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
index 15fe600..83e2f98 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
@@ -17,11 +17,15 @@
 #undef LOG_TAG
 #define LOG_TAG "LibSurfaceFlingerUnittests"
 
+#include <com_android_graphics_surfaceflinger_flags.h>
+#include <common/test/FlagUtils.h>
 #include "DisplayTransactionTestHelpers.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+using namespace com::android::graphics::surfaceflinger;
+
 namespace android {
 namespace {
 
@@ -453,6 +457,7 @@
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToOnExternalDisplay) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOffToOnVariant>>();
 }
 
@@ -461,6 +466,7 @@
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToOffExternalDisplay) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToOffVariant>>();
 }
 
@@ -473,6 +479,7 @@
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToDozeExternalDisplay) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeSuspendToDozeVariant>>();
 }
 
@@ -481,10 +488,12 @@
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToOnExternalDisplay) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeSuspendToOnVariant>>();
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToDozeSuspendExternalDisplay) {
+    SET_FLAG_FOR_TEST(flags::multithreaded_present, true);
     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToDozeSuspendVariant>>();
 }
 
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.cpp b/services/surfaceflinger/tests/unittests/TestableScheduler.cpp
index e0b7366..7b92a5b 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.cpp
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.cpp
@@ -21,11 +21,10 @@
 
 TestableScheduler::TestableScheduler(RefreshRateSelectorPtr selectorPtr,
                                      TestableSurfaceFlinger& testableSurfaceFlinger,
-                                     ISchedulerCallback& callback,
-                                     IVsyncTrackerCallback& vsyncTrackerCallback)
+                                     ISchedulerCallback& callback)
       : TestableScheduler(std::make_unique<android::mock::VsyncController>(),
                           std::make_shared<android::mock::VSyncTracker>(), std::move(selectorPtr),
                           testableSurfaceFlinger.getFactory(),
-                          testableSurfaceFlinger.getTimeStats(), callback, vsyncTrackerCallback) {}
+                          testableSurfaceFlinger.getTimeStats(), callback) {}
 
 } // namespace android::scheduler
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index 6213713..25a85df 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -41,18 +41,16 @@
 class TestableScheduler : public Scheduler, private ICompositor {
 public:
     TestableScheduler(RefreshRateSelectorPtr selectorPtr,
-                      TestableSurfaceFlinger& testableSurfaceFlinger, ISchedulerCallback& callback,
-                      IVsyncTrackerCallback& vsyncTrackerCallback);
+                      TestableSurfaceFlinger& testableSurfaceFlinger, ISchedulerCallback& callback);
 
     TestableScheduler(std::unique_ptr<VsyncController> controller,
                       std::shared_ptr<VSyncTracker> tracker, RefreshRateSelectorPtr selectorPtr,
                       surfaceflinger::Factory& factory, TimeStats& timeStats,
-                      ISchedulerCallback& schedulerCallback,
-                      IVsyncTrackerCallback& vsyncTrackerCallback)
+                      ISchedulerCallback& schedulerCallback)
           : Scheduler(*this, schedulerCallback,
                       (FeatureFlags)Feature::kContentDetection |
                               Feature::kSmallDirtyContentDetection,
-                      factory, selectorPtr->getActiveMode().fps, timeStats, vsyncTrackerCallback) {
+                      factory, selectorPtr->getActiveMode().fps, timeStats) {
         const auto displayId = selectorPtr->getActiveMode().modePtr->getPhysicalDisplayId();
         registerDisplay(displayId, std::move(selectorPtr), std::move(controller),
                         std::move(tracker));
@@ -210,6 +208,7 @@
         return {};
     }
     void sample() override {}
+    void sendNotifyExpectedPresentHint(PhysicalDisplayId) override {}
 };
 
 } // namespace android::scheduler
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 9ef0749..46a079c 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -53,7 +53,6 @@
 #include "mock/MockFrameTimeline.h"
 #include "mock/MockFrameTracer.h"
 #include "mock/MockSchedulerCallback.h"
-#include "mock/MockVsyncTrackerCallback.h"
 #include "mock/system/window/MockNativeWindow.h"
 
 #include "Scheduler/VSyncTracker.h"
@@ -205,8 +204,6 @@
 
     enum class SchedulerCallbackImpl { kNoOp, kMock };
 
-    enum class VsyncTrackerCallbackImpl { kNoOp, kMock };
-
     struct DefaultDisplayMode {
         // The ID of the injected RefreshRateSelector and its default display mode.
         PhysicalDisplayId displayId;
@@ -220,14 +217,13 @@
 
     TimeStats& getTimeStats() { return *mFlinger->mTimeStats; }
 
-    void setupScheduler(
-            std::unique_ptr<scheduler::VsyncController> vsyncController,
-            std::shared_ptr<scheduler::VSyncTracker> vsyncTracker,
-            std::unique_ptr<EventThread> appEventThread, std::unique_ptr<EventThread> sfEventThread,
-            DisplayModesVariant modesVariant,
-            SchedulerCallbackImpl callbackImpl = SchedulerCallbackImpl::kNoOp,
-            VsyncTrackerCallbackImpl vsyncTrackerCallbackImpl = VsyncTrackerCallbackImpl::kNoOp,
-            bool useNiceMock = false) {
+    void setupScheduler(std::unique_ptr<scheduler::VsyncController> vsyncController,
+                        std::shared_ptr<scheduler::VSyncTracker> vsyncTracker,
+                        std::unique_ptr<EventThread> appEventThread,
+                        std::unique_ptr<EventThread> sfEventThread,
+                        DisplayModesVariant modesVariant,
+                        SchedulerCallbackImpl callbackImpl = SchedulerCallbackImpl::kNoOp,
+                        bool useNiceMock = false) {
         RefreshRateSelectorPtr selectorPtr = ftl::match(
                 modesVariant,
                 [](DefaultDisplayMode arg) {
@@ -245,12 +241,6 @@
                 ? static_cast<ISchedulerCallback&>(mNoOpSchedulerCallback)
                 : static_cast<ISchedulerCallback&>(mSchedulerCallback);
 
-        using VsyncTrackerCallback = scheduler::IVsyncTrackerCallback;
-        VsyncTrackerCallback& vsyncTrackerCallback =
-                vsyncTrackerCallbackImpl == VsyncTrackerCallbackImpl::kNoOp
-                ? static_cast<VsyncTrackerCallback&>(mNoOpVsyncTrackerCallback)
-                : static_cast<VsyncTrackerCallback&>(mVsyncTrackerCallback);
-
         if (useNiceMock) {
             mScheduler =
                     new testing::NiceMock<scheduler::TestableScheduler>(std::move(vsyncController),
@@ -258,14 +248,12 @@
                                                                         std::move(selectorPtr),
                                                                         mFactory,
                                                                         *mFlinger->mTimeStats,
-                                                                        schedulerCallback,
-                                                                        vsyncTrackerCallback);
+                                                                        schedulerCallback);
         } else {
             mScheduler = new scheduler::TestableScheduler(std::move(vsyncController),
                                                           std::move(vsyncTracker),
                                                           std::move(selectorPtr), mFactory,
-                                                          *mFlinger->mTimeStats, schedulerCallback,
-                                                          vsyncTrackerCallback);
+                                                          *mFlinger->mTimeStats, schedulerCallback);
         }
 
         mScheduler->initVsync(*mTokenManager, 0ms);
@@ -307,8 +295,7 @@
         EXPECT_CALL(*vsyncTracker, nextAnticipatedVSyncTimeFrom(_, _)).WillRepeatedly(Return(0));
         setupScheduler(std::move(vsyncController), std::move(vsyncTracker), std::move(eventThread),
                        std::move(sfEventThread), DefaultDisplayMode{options.displayId},
-                       SchedulerCallbackImpl::kNoOp, VsyncTrackerCallbackImpl::kNoOp,
-                       options.useNiceMock);
+                       SchedulerCallbackImpl::kNoOp, options.useNiceMock);
     }
 
     void resetScheduler(scheduler::Scheduler* scheduler) { mFlinger->mScheduler.reset(scheduler); }
@@ -698,6 +685,36 @@
                                                   frameInterval, timeoutOpt);
     }
 
+    void sendNotifyExpectedPresentHint(PhysicalDisplayId displayId) {
+        ftl::FakeGuard guard(kMainThreadContext);
+        mFlinger->sendNotifyExpectedPresentHint(displayId);
+    }
+
+    bool verifyHintIsScheduledOnPresent(PhysicalDisplayId displayId) {
+        return mFlinger->mNotifyExpectedPresentMap.at(displayId).hintStatus ==
+                SurfaceFlinger::NotifyExpectedPresentHintStatus::ScheduleOnPresent;
+    }
+
+    bool verifyHintIsSent(PhysicalDisplayId displayId) {
+        return mFlinger->mNotifyExpectedPresentMap.at(displayId).hintStatus ==
+                SurfaceFlinger::NotifyExpectedPresentHintStatus::Sent;
+    }
+
+    bool verifyHintStatusIsStart(PhysicalDisplayId displayId) {
+        return mFlinger->mNotifyExpectedPresentMap.at(displayId).hintStatus ==
+                SurfaceFlinger::NotifyExpectedPresentHintStatus::Start;
+    }
+
+    bool verifyHintStatusIsScheduledOnTx(PhysicalDisplayId displayId) {
+        return mFlinger->mNotifyExpectedPresentMap.at(displayId).hintStatus ==
+                SurfaceFlinger::NotifyExpectedPresentHintStatus::ScheduleOnTx;
+    }
+
+    bool verifyLastExpectedPresentTime(PhysicalDisplayId displayId, nsecs_t expectedPresentTime) {
+        return mFlinger->mNotifyExpectedPresentMap.at(displayId)
+                       .lastExpectedPresentTimestamp.ns() == expectedPresentTime;
+    }
+
     void setNotifyExpectedPresentData(PhysicalDisplayId displayId,
                                       TimePoint lastExpectedPresentTimestamp,
                                       Fps lastFrameInterval) {
@@ -706,6 +723,11 @@
         displayData.lastFrameInterval = lastFrameInterval;
     }
 
+    void resetNotifyExpectedPresentHintState(PhysicalDisplayId displayId) {
+        mFlinger->mNotifyExpectedPresentMap.at(displayId).hintStatus =
+                SurfaceFlinger::NotifyExpectedPresentHintStatus::Start;
+    }
+
     ~TestableSurfaceFlinger() {
         // All these pointer and container clears help ensure that GMock does
         // not report a leaked object, since the SurfaceFlinger instance may
@@ -1099,8 +1121,6 @@
     sp<SurfaceFlinger> mFlinger;
     scheduler::mock::SchedulerCallback mSchedulerCallback;
     scheduler::mock::NoOpSchedulerCallback mNoOpSchedulerCallback;
-    scheduler::mock::VsyncTrackerCallback mVsyncTrackerCallback;
-    scheduler::mock::NoOpVsyncTrackerCallback mNoOpVsyncTrackerCallback;
     std::unique_ptr<frametimeline::impl::TokenManager> mTokenManager;
     scheduler::TestableScheduler* mScheduler = nullptr;
     Hwc2::mock::PowerAdvisor mPowerAdvisor;
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index d952b70..b9f3d70 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -26,7 +26,6 @@
 #include <common/test/FlagUtils.h>
 #include "Scheduler/VSyncPredictor.h"
 #include "mock/DisplayHardware/MockDisplayMode.h"
-#include "mock/MockVsyncTrackerCallback.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -82,14 +81,13 @@
     nsecs_t mNow = 0;
     nsecs_t mPeriod = 1000;
     ftl::NonNull<DisplayModePtr> mMode = displayMode(mPeriod);
-    scheduler::mock::VsyncTrackerCallback mVsyncTrackerCallback;
     static constexpr size_t kHistorySize = 10;
     static constexpr size_t kMinimumSamplesForPrediction = 6;
     static constexpr size_t kOutlierTolerancePercent = 25;
     static constexpr nsecs_t mMaxRoundingError = 100;
 
     VSyncPredictor tracker{mMode, kHistorySize, kMinimumSamplesForPrediction,
-                           kOutlierTolerancePercent, mVsyncTrackerCallback};
+                           kOutlierTolerancePercent};
 };
 
 TEST_F(VSyncPredictorTest, reportsAnticipatedPeriod) {
@@ -410,8 +408,7 @@
 // See b/151146131
 TEST_F(VSyncPredictorTest, hasEnoughPrecision) {
     const auto mode = displayMode(mPeriod);
-    VSyncPredictor tracker{mode, 20, kMinimumSamplesForPrediction, kOutlierTolerancePercent,
-                           mVsyncTrackerCallback};
+    VSyncPredictor tracker{mode, 20, kMinimumSamplesForPrediction, kOutlierTolerancePercent};
     std::vector<nsecs_t> const simulatedVsyncs{840873348817, 840890049444, 840906762675,
                                                840923581635, 840940161584, 840956868096,
                                                840973702473, 840990256277, 841007116851,
@@ -658,48 +655,6 @@
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 5100), Eq(mNow + 6 * mPeriod));
 }
 
-TEST_F(VSyncPredictorTest, vsyncTrackerCallback) {
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-
-    const auto refreshRate = Fps::fromPeriodNsecs(mPeriod);
-    NotifyExpectedPresentConfig notifyExpectedPresentConfig;
-    notifyExpectedPresentConfig.timeoutNs = Period::fromNs(30).ns();
-
-    hal::VrrConfig vrrConfig;
-    vrrConfig.notifyExpectedPresentConfig = notifyExpectedPresentConfig;
-    vrrConfig.minFrameIntervalNs = refreshRate.getPeriodNsecs();
-
-    const int32_t kGroup = 0;
-    const auto kResolution = ui::Size(1920, 1080);
-    const auto mode =
-            ftl::as_non_null(createVrrDisplayMode(DisplayModeId(0), refreshRate, vrrConfig, kGroup,
-                                                  kResolution, DEFAULT_DISPLAY_ID));
-
-    tracker.setDisplayModePtr(mode);
-    auto last = mNow;
-    for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
-        EXPECT_CALL(mVsyncTrackerCallback,
-                    onVsyncGenerated(TimePoint::fromNs(last + mPeriod), mode,
-                                     FpsMatcher(refreshRate)))
-                .Times(1);
-        EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(last + mPeriod));
-        mNow += mPeriod;
-        last = mNow;
-        tracker.addVsyncTimestamp(mNow);
-    }
-
-    tracker.setRenderRate(refreshRate / 2);
-    {
-        // out of render rate phase
-        EXPECT_CALL(mVsyncTrackerCallback,
-                    onVsyncGenerated(TimePoint::fromNs(mNow + 3 * mPeriod), mode,
-                                     FpsMatcher(refreshRate / 2)))
-                .Times(1);
-        EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 1 * mPeriod),
-                    Eq(mNow + 3 * mPeriod));
-    }
-}
-
 TEST_F(VSyncPredictorTest, adjustsVrrTimeline) {
     SET_FLAG_FOR_TEST(flags::vrr_config, true);
 
@@ -716,7 +671,7 @@
                                      .build());
 
     VSyncPredictor vrrTracker{kMode, kHistorySize, kMinimumSamplesForPrediction,
-                              kOutlierTolerancePercent, mVsyncTrackerCallback};
+                              kOutlierTolerancePercent};
 
     vrrTracker.setRenderRate(minFrameRate);
     vrrTracker.addVsyncTimestamp(0);
@@ -733,28 +688,6 @@
     EXPECT_EQ(5000, vrrTracker.nextAnticipatedVSyncTimeFrom(4500, 4500));
     EXPECT_EQ(6000, vrrTracker.nextAnticipatedVSyncTimeFrom(5000, 5000));
 }
-
-TEST_F(VSyncPredictorTest, absentVrrConfigNoVsyncTrackerCallback) {
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    const auto refreshRate = Fps::fromPeriodNsecs(mPeriod);
-    const std::optional<hal::VrrConfig> vrrConfigOpt = std::nullopt;
-    constexpr int32_t kGroup = 0;
-    constexpr auto kResolution = ui::Size(1920, 1080);
-    const auto mode =
-            ftl::as_non_null(createVrrDisplayMode(DisplayModeId(0), refreshRate, vrrConfigOpt,
-                                                  kGroup, kResolution, DEFAULT_DISPLAY_ID));
-    tracker.setDisplayModePtr(mode);
-
-    auto last = mNow;
-    for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
-        EXPECT_CALL(mVsyncTrackerCallback, onVsyncGenerated(_, _, _)).Times(0);
-        EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(last + mPeriod));
-        mNow += mPeriod;
-        last = mNow;
-        tracker.addVsyncTimestamp(mNow);
-    }
-}
-
 } // namespace android::scheduler
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplayMode.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplayMode.h
index e298e7c..685d8f9 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplayMode.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplayMode.h
@@ -24,7 +24,7 @@
         DisplayModeId modeId, Fps displayRefreshRate, int32_t group = 0,
         ui::Size resolution = ui::Size(1920, 1080),
         PhysicalDisplayId displayId = PhysicalDisplayId::fromPort(0)) {
-    return DisplayMode::Builder(hal::HWConfigId(modeId.value()))
+    return DisplayMode::Builder(hal::HWConfigId(ftl::to_underlying(modeId)))
             .setId(modeId)
             .setPhysicalDisplayId(displayId)
             .setVsyncPeriod(displayRefreshRate.getPeriodNsecs())
diff --git a/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h b/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
index a71e82c..7b18a82 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
@@ -18,12 +18,15 @@
 
 #include <android/gui/DisplayModeSpecs.h>
 
+#include "DisplayHardware/DisplayMode.h"
+
 namespace android::mock {
 
-inline gui::DisplayModeSpecs createDisplayModeSpecs(int32_t defaultMode, bool allowGroupSwitching,
-                                                    float minFps, float maxFps) {
+inline gui::DisplayModeSpecs createDisplayModeSpecs(DisplayModeId defaultMode,
+                                                    bool allowGroupSwitching, float minFps,
+                                                    float maxFps) {
     gui::DisplayModeSpecs specs;
-    specs.defaultMode = defaultMode;
+    specs.defaultMode = ftl::to_underlying(defaultMode);
     specs.allowGroupSwitching = allowGroupSwitching;
     specs.primaryRanges.physical.min = minFps;
     specs.primaryRanges.physical.max = maxFps;
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index 22b2ccc..4ca0542 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
@@ -28,6 +28,8 @@
     MOCK_METHOD(void, kernelTimerChanged, (bool), (override));
     MOCK_METHOD(void, triggerOnFrameRateOverridesChanged, (), (override));
     MOCK_METHOD(void, onChoreographerAttached, (), (override));
+    MOCK_METHOD(void, onExpectedPresentTimePosted, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps),
+                (override));
 };
 
 struct NoOpSchedulerCallback final : ISchedulerCallback {
@@ -36,6 +38,7 @@
     void kernelTimerChanged(bool) override {}
     void triggerOnFrameRateOverridesChanged() override {}
     void onChoreographerAttached() override {}
+    void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
 };
 
 } // namespace android::scheduler::mock
diff --git a/services/surfaceflinger/tests/unittests/mock/MockVsyncTrackerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockVsyncTrackerCallback.h
deleted file mode 100644
index b48529f..0000000
--- a/services/surfaceflinger/tests/unittests/mock/MockVsyncTrackerCallback.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <gmock/gmock.h>
-
-#include "Scheduler/VSyncTracker.h"
-
-namespace android::scheduler::mock {
-
-struct VsyncTrackerCallback final : IVsyncTrackerCallback {
-    MOCK_METHOD(void, onVsyncGenerated, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps), (override));
-};
-
-struct NoOpVsyncTrackerCallback final : IVsyncTrackerCallback {
-    void onVsyncGenerated(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override{};
-};
-} // namespace android::scheduler::mock
diff --git a/services/vibratorservice/test/Android.bp b/services/vibratorservice/test/Android.bp
index 3294724..be71dc2 100644
--- a/services/vibratorservice/test/Android.bp
+++ b/services/vibratorservice/test/Android.bp
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 package {
+    default_team: "trendy_team_haptics_framework",
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
     // all of the 'license_kinds' from "frameworks_native_license"
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 867fc45..fe3be45 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include "vulkan/vulkan_core.h"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
 #include <aidl/android/hardware/graphics/common/Dataspace.h>
@@ -786,6 +787,12 @@
             all_formats.emplace_back(
                 VkSurfaceFormatKHR{VK_FORMAT_R16G16B16A16_SFLOAT,
                                    VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT});
+            all_formats.emplace_back(
+                VkSurfaceFormatKHR{VK_FORMAT_R16G16B16A16_SFLOAT,
+                                   VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT});
+            all_formats.emplace_back(
+                VkSurfaceFormatKHR{VK_FORMAT_R16G16B16A16_SFLOAT,
+                                   VK_COLOR_SPACE_DISPLAY_P3_LINEAR_EXT});
         }
     }