Merge "SF: Store VsyncDispatch callbacks in ftl::SmallMap" into main
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/lshal/Timeout.h b/cmds/lshal/Timeout.h
index 37f41be..d97ba89 100644
--- a/cmds/lshal/Timeout.h
+++ b/cmds/lshal/Timeout.h
@@ -16,83 +16,44 @@
 
 #pragma once
 
-#include <condition_variable>
 #include <chrono>
-#include <functional>
-#include <mutex>
-#include <thread>
+#include <future>
 
 #include <hidl/Status.h>
+#include <utils/Errors.h>
 
 namespace android {
 namespace lshal {
 
-class BackgroundTaskState {
-public:
-    explicit BackgroundTaskState(std::function<void(void)> &&func)
-            : mFunc(std::forward<decltype(func)>(func)) {}
-    void notify() {
-        std::unique_lock<std::mutex> lock(mMutex);
-        mFinished = true;
-        lock.unlock();
-        mCondVar.notify_all();
-    }
-    template<class C, class D>
-    bool wait(std::chrono::time_point<C, D> end) {
-        std::unique_lock<std::mutex> lock(mMutex);
-        mCondVar.wait_until(lock, end, [this](){ return this->mFinished; });
-        return mFinished;
-    }
-    void operator()() {
-        mFunc();
-    }
-private:
-    std::mutex mMutex;
-    std::condition_variable mCondVar;
-    bool mFinished = false;
-    std::function<void(void)> mFunc;
-};
-
-void *callAndNotify(void *data) {
-    BackgroundTaskState &state = *static_cast<BackgroundTaskState *>(data);
-    state();
-    state.notify();
-    return nullptr;
-}
-
-template<class R, class P>
-bool timeout(std::chrono::duration<R, P> delay, std::function<void(void)> &&func) {
-    auto now = std::chrono::system_clock::now();
-    BackgroundTaskState state{std::forward<decltype(func)>(func)};
-    pthread_t thread;
-    if (pthread_create(&thread, nullptr, callAndNotify, &state)) {
-        std::cerr << "FATAL: could not create background thread." << std::endl;
-        return false;
-    }
-    bool success = state.wait(now + delay);
-    if (!success) {
-        pthread_kill(thread, SIGINT);
-    }
-    pthread_join(thread, nullptr);
-    return success;
-}
-
+// Call function on interfaceObject and wait for result until the given timeout has reached.
+// Callback functions pass to timeoutIPC() may be executed after the this function
+// has returned, especially if deadline has been reached. Hence, care must be taken when passing
+// data between the background thread and the main thread. See b/311143089.
 template<class R, class P, class Function, class I, class... Args>
 typename std::invoke_result<Function, I *, Args...>::type
 timeoutIPC(std::chrono::duration<R, P> wait, const sp<I> &interfaceObject, Function &&func,
            Args &&... args) {
     using ::android::hardware::Status;
-    typename std::result_of<Function(I *, Args...)>::type ret{Status::ok()};
-    auto boundFunc = std::bind(std::forward<Function>(func),
-            interfaceObject.get(), std::forward<Args>(args)...);
-    bool success = timeout(wait, [&ret, &boundFunc] {
-        ret = std::move(boundFunc());
-    });
-    if (!success) {
+
+    // Execute on a background thread but do not defer execution.
+    auto future =
+            std::async(std::launch::async, func, interfaceObject, std::forward<Args>(args)...);
+    auto status = future.wait_for(wait);
+    if (status == std::future_status::ready) {
+        return future.get();
+    }
+
+    // This future belongs to a background thread that we no longer care about.
+    // Putting this in the global list avoids std::future::~future() that may wait for the
+    // result to come back.
+    // This leaks memory, but lshal is a debugging tool, so this is fine.
+    static std::vector<decltype(future)> gDeadPool{};
+    gDeadPool.emplace_back(std::move(future));
+
+    if (status == std::future_status::timeout) {
         return Status::fromStatusT(TIMED_OUT);
     }
-    return ret;
+    return Status::fromExceptionCode(Status::Exception::EX_ILLEGAL_STATE, "Illegal future_status");
 }
-
-}  // namespace lshal
-}  // namespace android
+} // namespace lshal
+} // namespace android
diff --git a/cmds/lshal/main.cpp b/cmds/lshal/main.cpp
index 366c938..bd5fa32 100644
--- a/cmds/lshal/main.cpp
+++ b/cmds/lshal/main.cpp
@@ -18,5 +18,6 @@
 
 int main(int argc, char **argv) {
     using namespace ::android::lshal;
-    return Lshal{}.main(Arg{argc, argv});
+    // Use _exit() to force terminate background threads in Timeout.h
+    _exit(Lshal{}.main(Arg{argc, argv}));
 }
diff --git a/cmds/lshal/test.cpp b/cmds/lshal/test.cpp
index cba7c4b..c24f827 100644
--- a/cmds/lshal/test.cpp
+++ b/cmds/lshal/test.cpp
@@ -14,6 +14,10 @@
  * limitations under the License.
  */
 
+#include <chrono>
+#include <future>
+#include <mutex>
+#include "android/hidl/base/1.0/IBase.h"
 #define LOG_TAG "Lshal"
 #include <android-base/logging.h>
 
@@ -36,6 +40,8 @@
 
 using namespace testing;
 
+using std::chrono_literals::operator""ms;
+
 using ::android::hidl::base::V1_0::DebugInfo;
 using ::android::hidl::base::V1_0::IBase;
 using ::android::hidl::manager::V1_0::IServiceManager;
@@ -934,12 +940,9 @@
         return hardware::Void();
     }));
     EXPECT_CALL(*serviceManager, get(_, _))
-            .WillRepeatedly(
-                    Invoke([&](const hidl_string&, const hidl_string& instance) -> sp<IBase> {
-                        int id = getIdFromInstanceName(instance);
-                        if (id > inheritanceLevel) return nullptr;
-                        return sp<IBase>(service);
-                    }));
+            .WillRepeatedly(Invoke([&](const hidl_string&, const hidl_string&) -> sp<IBase> {
+                return sp<IBase>(service);
+            }));
 
     const std::string expected = "[fake description 0]\n"
                                  "Interface\n"
@@ -957,6 +960,110 @@
     EXPECT_EQ("", err.str());
 }
 
+// In SlowService, everything goes slooooooow. Each IPC call will wait for
+// the specified time before calling the callback function or returning.
+class SlowService : public IBase {
+public:
+    explicit SlowService(std::chrono::milliseconds wait) : mWait(wait) {}
+    android::hardware::Return<void> interfaceDescriptor(interfaceDescriptor_cb cb) override {
+        std::this_thread::sleep_for(mWait);
+        cb(getInterfaceName(1));
+        storeHistory("interfaceDescriptor");
+        return hardware::Void();
+    }
+    android::hardware::Return<void> interfaceChain(interfaceChain_cb cb) override {
+        std::this_thread::sleep_for(mWait);
+        std::vector<hidl_string> ret;
+        ret.push_back(getInterfaceName(1));
+        ret.push_back(IBase::descriptor);
+        cb(ret);
+        storeHistory("interfaceChain");
+        return hardware::Void();
+    }
+    android::hardware::Return<void> getHashChain(getHashChain_cb cb) override {
+        std::this_thread::sleep_for(mWait);
+        std::vector<hidl_hash> ret;
+        ret.push_back(getHashFromId(0));
+        ret.push_back(getHashFromId(0xff));
+        cb(ret);
+        storeHistory("getHashChain");
+        return hardware::Void();
+    }
+    android::hardware::Return<void> debug(const hidl_handle&,
+                                          const hidl_vec<hidl_string>&) override {
+        std::this_thread::sleep_for(mWait);
+        storeHistory("debug");
+        return Void();
+    }
+
+    template <class R, class P, class Pred>
+    bool waitForHistory(std::chrono::duration<R, P> wait, Pred predicate) {
+        std::unique_lock<std::mutex> lock(mLock);
+        return mCv.wait_for(lock, wait, [&]() { return predicate(mCallHistory); });
+    }
+
+private:
+    void storeHistory(std::string hist) {
+        {
+            std::lock_guard<std::mutex> lock(mLock);
+            mCallHistory.emplace_back(std::move(hist));
+        }
+        mCv.notify_all();
+    }
+
+    const std::chrono::milliseconds mWait;
+    std::mutex mLock;
+    std::condition_variable mCv;
+    // List of functions that have finished being called on this interface.
+    std::vector<std::string> mCallHistory;
+};
+
+class TimeoutTest : public ListTest {
+public:
+    void setMockServiceManager(sp<IBase> service) {
+        EXPECT_CALL(*serviceManager, list(_))
+                .WillRepeatedly(Invoke([&](IServiceManager::list_cb cb) {
+                    std::vector<hidl_string> ret;
+                    ret.push_back(getInterfaceName(1) + "/default");
+                    cb(ret);
+                    return hardware::Void();
+                }));
+        EXPECT_CALL(*serviceManager, get(_, _))
+                .WillRepeatedly(Invoke([&](const hidl_string&, const hidl_string&) -> sp<IBase> {
+                    return service;
+                }));
+    }
+};
+
+TEST_F(TimeoutTest, BackgroundThreadIsKept) {
+    auto lshalIpcTimeout = 100ms;
+    auto serviceIpcTimeout = 200ms;
+    lshal->setWaitTimeForTest(lshalIpcTimeout, lshalIpcTimeout);
+    sp<SlowService> service = new SlowService(serviceIpcTimeout);
+    setMockServiceManager(service);
+
+    optind = 1; // mimic Lshal::parseArg()
+    EXPECT_NE(0u, mockList->main(createArg({"lshal", "--types=b", "-i", "--neat"})));
+    EXPECT_THAT(err.str(), HasSubstr("Skipping \"a.h.foo1@1.0::IFoo/default\""));
+    EXPECT_TRUE(service->waitForHistory(serviceIpcTimeout * 5, [](const auto& hist) {
+        return hist.size() == 1 && hist[0] == "interfaceChain";
+    })) << "The background thread should continue after the main thread moves on, but it is killed";
+}
+
+TEST_F(TimeoutTest, BackgroundThreadDoesNotBlockMainThread) {
+    auto lshalIpcTimeout = 100ms;
+    auto serviceIpcTimeout = 2000ms;
+    auto start = std::chrono::system_clock::now();
+    lshal->setWaitTimeForTest(lshalIpcTimeout, lshalIpcTimeout);
+    sp<SlowService> service = new SlowService(serviceIpcTimeout);
+    setMockServiceManager(service);
+
+    optind = 1; // mimic Lshal::parseArg()
+    EXPECT_NE(0u, mockList->main(createArg({"lshal", "--types=b", "-i", "--neat"})));
+    EXPECT_LE(std::chrono::system_clock::now(), start + 5 * lshalIpcTimeout)
+            << "The main thread should not be blocked by the background task";
+}
+
 class ListVintfTest : public ListTest {
 public:
     virtual void SetUp() override {
@@ -1079,5 +1186,6 @@
 
 int main(int argc, char **argv) {
     ::testing::InitGoogleMock(&argc, argv);
-    return RUN_ALL_TESTS();
+    // Use _exit() to force terminate background threads in Timeout.h
+    _exit(RUN_ALL_TESTS());
 }
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 adcef91..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;
 
@@ -144,6 +169,24 @@
 }
 
 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;
 
@@ -164,24 +207,25 @@
     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) {
@@ -216,6 +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());
@@ -595,20 +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/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/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/InputTransport.h b/include/input/InputTransport.h
index d53e8c6..42dcd3c 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -301,6 +301,15 @@
     void copyTo(android::os::InputChannelCore& outChannel) const;
 
     /**
+     * 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.
      * the pair of input channels that were created simultaneously. Input channels
      * are always created in pairs, and the token can be used to find the server-side
@@ -333,7 +342,7 @@
     ~InputPublisher();
 
     /* Gets the underlying input channel. */
-    inline std::shared_ptr<InputChannel> getChannel() const { return mChannel; }
+    inline InputChannel& getChannel() const { return *mChannel; }
 
     /* Publishes a key event to the input channel.
      *
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/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 0e0e80d..e49f4eb 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -584,6 +584,13 @@
     outChannel.token = getConnectionToken();
 }
 
+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 token;
 }
@@ -591,7 +598,7 @@
 // --- 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/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/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/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index 823df67..ae066c0 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp
@@ -277,7 +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/dispatcher/Connection.cpp b/services/inputflinger/dispatcher/Connection.cpp
index c7963c0..9dee66f 100644
--- a/services/inputflinger/dispatcher/Connection.cpp
+++ b/services/inputflinger/dispatcher/Connection.cpp
@@ -20,15 +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),
         monitor(monitor),
-        inputPublisher(inputChannel),
+        inputPublisher(std::move(inputChannel)),
         inputState(idGenerator) {}
 
 sp<IBinder> Connection::getToken() const {
-    return inputPublisher.getChannel()->getConnectionToken();
+    return inputPublisher.getChannel().getConnectionToken();
 };
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/Connection.h b/services/inputflinger/dispatcher/Connection.h
index 8d7f182..a834a8c 100644
--- a/services/inputflinger/dispatcher/Connection.h
+++ b/services/inputflinger/dispatcher/Connection.h
@@ -58,11 +58,11 @@
     // 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 inputPublisher.getChannel()->getName();
+        return inputPublisher.getChannel().getName();
     }
 
     sp<IBinder> getToken() const;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index a62e23a..229d699 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -121,11 +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;
 
@@ -436,15 +431,6 @@
     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) {
@@ -1201,7 +1187,7 @@
  * 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);
 
@@ -1243,16 +1229,6 @@
         }
     }
 
-    // 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;
 }
 
@@ -1300,6 +1276,20 @@
                 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: {
@@ -2146,7 +2136,8 @@
         // 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;
     }
@@ -4888,7 +4879,7 @@
             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;
         }
     }
@@ -5204,6 +5195,7 @@
 
     // 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);
 
@@ -5212,7 +5204,7 @@
     std::optional<FocusResolver::FocusChanges> changes =
             mFocusResolver.setInputWindows(displayId, windowHandles);
     if (changes) {
-        onFocusChangedLocked(*changes);
+        onFocusChangedLocked(*changes, removedFocusedWindowHandle);
     }
 
     std::unordered_map<int32_t, TouchState>::iterator stateIt =
@@ -5334,14 +5326,16 @@
             sp<IBinder> oldFocusedWindowToken =
                     mFocusResolver.getFocusedWindowToken(mFocusedDisplayId);
             if (oldFocusedWindowToken != nullptr) {
-                std::shared_ptr<Connection> connection = getConnectionLocked(oldFocusedWindowToken);
-                if (connection != nullptr) {
-                    CancelationOptions
-                            options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
-                                    "The display which contains this window no longer has focus.");
-                    options.displayId = ADISPLAY_ID_NONE;
-                    synthesizeCancelationEventsForConnectionLocked(connection, 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;
 
@@ -5805,7 +5799,7 @@
         for (const auto& [token, connection] : mConnectionsByToken) {
             dump += StringPrintf(INDENT2 "%i: channelName='%s', "
                                          "status=%s, monitor=%s, responsive=%s\n",
-                                 connection->inputPublisher.getChannel()->getFd(),
+                                 connection->inputPublisher.getChannel().getFd(),
                                  connection->getInputChannelName().c_str(),
                                  ftl::enum_string(connection->status).c_str(),
                                  toString(connection->monitor), toString(connection->responsive));
@@ -5916,9 +5910,9 @@
 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;
     }
@@ -5931,10 +5925,11 @@
                                           << " without a specified display.";
         }
 
-        std::shared_ptr<Connection> connection =
-                std::make_shared<Connection>(serverChannel, /*monitor=*/true, mIdGenerator);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
         const int fd = serverChannel->getFd();
+        std::shared_ptr<Connection> connection =
+                std::make_shared<Connection>(std::move(serverChannel), /*monitor=*/true,
+                                             mIdGenerator);
 
         auto [_, inserted] = mConnectionsByToken.emplace(token, connection);
         if (!inserted) {
@@ -5985,7 +5980,7 @@
         removeMonitorChannelLocked(connectionToken);
     }
 
-    mLooper->removeFd(connection->inputPublisher.getChannel()->getFd());
+    mLooper->removeFd(connection->inputPublisher.getChannel().getFd());
 
     nsecs_t currentTime = now();
     abortBrokenDispatchCycleLocked(currentTime, connection, notify);
@@ -6215,8 +6210,18 @@
         }
         traceWaitQueueLength(*connection);
         if (fallbackKeyEntry && connection->status == Connection::Status::NORMAL) {
-            const InputTarget target{.connection = connection, .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));
     }
@@ -6448,14 +6453,18 @@
 
             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;
+                    synthesizeCancelationEventsForConnectionLocked(connection, options);
+                }
             }
             connection->inputState.removeFallbackKey(originalKeyCode);
         }
@@ -6531,10 +6540,13 @@
                 }
             }
 
-            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;
+                synthesizeCancelationEventsForConnectionLocked(connection, options);
+            }
 
             fallback = false;
             *fallbackKeyCode = AKEYCODE_UNKNOWN;
@@ -6673,15 +6685,19 @@
     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<Connection> focusedConnection = getConnectionLocked(changes.oldFocus);
-        if (focusedConnection) {
-            CancelationOptions options(CancelationOptions::Mode::CANCEL_NON_POINTER_EVENTS,
-                                       "focus left window");
-            synthesizeCancelationEventsForConnectionLocked(focusedConnection, 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 155d485..90a5250 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -470,7 +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.
@@ -653,7 +653,9 @@
                                         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/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/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/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 163eab0..8dd98e1 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -363,6 +363,8 @@
         mInterceptKeyTimeout = timeout;
     }
 
+    std::chrono::nanoseconds getKeyWaitingForEventsTimeout() override { return 500ms; }
+
     void setStaleEventTimeout(std::chrono::nanoseconds timeout) { mStaleEventTimeout = timeout; }
 
     void assertUserActivityNotPoked() {
@@ -1083,8 +1085,8 @@
         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;
         }
@@ -1412,14 +1414,14 @@
         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 +1439,6 @@
 
     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>;
-
     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";
@@ -1454,6 +1449,13 @@
         }
         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>;
 };
 
 std::atomic<int32_t> FakeWindowHandle::sId{1};
@@ -1512,7 +1514,7 @@
 
     std::unique_ptr<MotionEvent> consumeMotion() { return mInputReceiver.consumeMotion(); }
 
-    void assertNoEvents() { mInputReceiver.assertNoEvents(); }
+    void assertNoEvents() { mInputReceiver.assertNoEvents(CONSUME_TIMEOUT_NO_EVENT_EXPECTED); }
 
 private:
     FakeInputReceiver mInputReceiver;
@@ -7261,7 +7263,7 @@
     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 +7296,71 @@
     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;
@@ -8824,16 +8891,11 @@
 /**
  * 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});
 
@@ -8842,23 +8904,18 @@
     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);
@@ -8873,7 +8930,10 @@
  * 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});
 
@@ -8888,15 +8948,19 @@
                     .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));
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/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/LayerHistoryIntegrationTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
index 01762c1..110f324 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
@@ -1026,6 +1026,7 @@
 };
 
 TEST_F(SmallAreaDetectionTest, SmallDirtyLayer) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();
@@ -1043,6 +1044,7 @@
 }
 
 TEST_F(SmallAreaDetectionTest, NotSmallDirtyLayer) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();
@@ -1060,6 +1062,7 @@
 }
 
 TEST_F(SmallAreaDetectionTest, smallDirtyLayerWithMatrix) {
+    SET_FLAG_FOR_TEST(flags::enable_small_area_detection, true);
     auto layer = createLegacyAndFrontedEndLayer(1);
 
     nsecs_t time = systemTime();