Merge "Vulkan: Remove redundant files"
diff --git a/cmds/installd/Android.bp b/cmds/installd/Android.bp
index c80ae3b..654213f 100644
--- a/cmds/installd/Android.bp
+++ b/cmds/installd/Android.bp
@@ -172,6 +172,7 @@
     srcs: [
         "binder/android/os/IInstalld.aidl",
     ],
+    path: "binder",
 }
 
 //
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index aedf6b0..905b25f 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -143,6 +143,7 @@
     srcs: [
         "aidl/android/content/pm/IPackageManagerNative.aidl",
     ],
+    path: "aidl",
 }
 
 subdirs = ["tests"]
diff --git a/libs/gui/DisplayEventReceiver.cpp b/libs/gui/DisplayEventReceiver.cpp
index f5cf1c4..b8faa2d 100644
--- a/libs/gui/DisplayEventReceiver.cpp
+++ b/libs/gui/DisplayEventReceiver.cpp
@@ -32,10 +32,11 @@
 
 // ---------------------------------------------------------------------------
 
-DisplayEventReceiver::DisplayEventReceiver(ISurfaceComposer::VsyncSource vsyncSource) {
+DisplayEventReceiver::DisplayEventReceiver(ISurfaceComposer::VsyncSource vsyncSource,
+                                           ISurfaceComposer::ConfigChanged configChanged) {
     sp<ISurfaceComposer> sf(ComposerService::getComposerService());
     if (sf != nullptr) {
-        mEventConnection = sf->createDisplayEventConnection(vsyncSource);
+        mEventConnection = sf->createDisplayEventConnection(vsyncSource, configChanged);
         if (mEventConnection != nullptr) {
             mDataChannel = std::make_unique<gui::BitTube>();
             mEventConnection->stealReceiveChannel(mDataChannel.get());
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 6c9d81a..e487792 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -278,8 +278,8 @@
         return NO_ERROR;
     }
 
-    virtual sp<IDisplayEventConnection> createDisplayEventConnection(VsyncSource vsyncSource)
-    {
+    virtual sp<IDisplayEventConnection> createDisplayEventConnection(VsyncSource vsyncSource,
+                                                                     ConfigChanged configChanged) {
         Parcel data, reply;
         sp<IDisplayEventConnection> result;
         int err = data.writeInterfaceToken(
@@ -288,6 +288,7 @@
             return result;
         }
         data.writeInt32(static_cast<int32_t>(vsyncSource));
+        data.writeInt32(static_cast<int32_t>(configChanged));
         err = remote()->transact(
                 BnSurfaceComposer::CREATE_DISPLAY_EVENT_CONNECTION,
                 data, &reply);
@@ -1155,8 +1156,11 @@
         }
         case CREATE_DISPLAY_EVENT_CONNECTION: {
             CHECK_INTERFACE(ISurfaceComposer, data, reply);
-            sp<IDisplayEventConnection> connection(createDisplayEventConnection(
-                    static_cast<ISurfaceComposer::VsyncSource>(data.readInt32())));
+            auto vsyncSource = static_cast<ISurfaceComposer::VsyncSource>(data.readInt32());
+            auto configChanged = static_cast<ISurfaceComposer::ConfigChanged>(data.readInt32());
+
+            sp<IDisplayEventConnection> connection(
+                    createDisplayEventConnection(vsyncSource, configChanged));
             reply->writeStrongBinder(IInterface::asBinder(connection));
             return NO_ERROR;
         }
diff --git a/libs/gui/include/gui/DisplayEventReceiver.h b/libs/gui/include/gui/DisplayEventReceiver.h
index 22de751..a558cf9 100644
--- a/libs/gui/include/gui/DisplayEventReceiver.h
+++ b/libs/gui/include/gui/DisplayEventReceiver.h
@@ -88,10 +88,13 @@
      * DisplayEventReceiver creates and registers an event connection with
      * SurfaceFlinger. VSync events are disabled by default. Call setVSyncRate
      * or requestNextVsync to receive them.
+     * To receive Config Changed events specify this in the constructor.
      * Other events start being delivered immediately.
      */
     explicit DisplayEventReceiver(
-            ISurfaceComposer::VsyncSource vsyncSource = ISurfaceComposer::eVsyncSourceApp);
+            ISurfaceComposer::VsyncSource vsyncSource = ISurfaceComposer::eVsyncSourceApp,
+            ISurfaceComposer::ConfigChanged configChanged =
+                    ISurfaceComposer::eConfigChangedSuppress);
 
     /*
      * ~DisplayEventReceiver severs the connection with SurfaceFlinger, new events
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index e2f7736..c84910b 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -90,6 +90,8 @@
         eVsyncSourceSurfaceFlinger = 1
     };
 
+    enum ConfigChanged { eConfigChangedSuppress = 0, eConfigChangedDispatch = 1 };
+
     /*
      * Create a connection with SurfaceFlinger.
      */
@@ -97,7 +99,8 @@
 
     /* return an IDisplayEventConnection */
     virtual sp<IDisplayEventConnection> createDisplayEventConnection(
-            VsyncSource vsyncSource = eVsyncSourceApp) = 0;
+            VsyncSource vsyncSource = eVsyncSourceApp,
+            ConfigChanged configChanged = eConfigChangedSuppress) = 0;
 
     /* create a virtual display
      * requires ACCESS_SURFACE_FLINGER permission.
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 960cf18..d370858 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -548,8 +548,8 @@
     }
 
     sp<ISurfaceComposerClient> createConnection() override { return nullptr; }
-    sp<IDisplayEventConnection> createDisplayEventConnection(ISurfaceComposer::VsyncSource)
-            override {
+    sp<IDisplayEventConnection> createDisplayEventConnection(
+            ISurfaceComposer::VsyncSource, ISurfaceComposer::ConfigChanged) override {
         return nullptr;
     }
     sp<IBinder> createDisplay(const String8& /*displayName*/,
diff --git a/libs/input/Keyboard.cpp b/libs/input/Keyboard.cpp
index 0c22bfe..56900c1 100644
--- a/libs/input/Keyboard.cpp
+++ b/libs/input/Keyboard.cpp
@@ -38,29 +38,29 @@
 KeyMap::~KeyMap() {
 }
 
-status_t KeyMap::load(const InputDeviceIdentifier& deviceIdenfifier,
+status_t KeyMap::load(const InputDeviceIdentifier& deviceIdentifier,
         const PropertyMap* deviceConfiguration) {
     // Use the configured key layout if available.
     if (deviceConfiguration) {
         String8 keyLayoutName;
         if (deviceConfiguration->tryGetProperty(String8("keyboard.layout"),
                 keyLayoutName)) {
-            status_t status = loadKeyLayout(deviceIdenfifier, keyLayoutName.c_str());
+            status_t status = loadKeyLayout(deviceIdentifier, keyLayoutName.c_str());
             if (status == NAME_NOT_FOUND) {
                 ALOGE("Configuration for keyboard device '%s' requested keyboard layout '%s' but "
                         "it was not found.",
-                        deviceIdenfifier.name.c_str(), keyLayoutName.string());
+                        deviceIdentifier.name.c_str(), keyLayoutName.string());
             }
         }
 
         String8 keyCharacterMapName;
         if (deviceConfiguration->tryGetProperty(String8("keyboard.characterMap"),
                 keyCharacterMapName)) {
-            status_t status = loadKeyCharacterMap(deviceIdenfifier, keyCharacterMapName.c_str());
+            status_t status = loadKeyCharacterMap(deviceIdentifier, keyCharacterMapName.c_str());
             if (status == NAME_NOT_FOUND) {
                 ALOGE("Configuration for keyboard device '%s' requested keyboard character "
                         "map '%s' but it was not found.",
-                        deviceIdenfifier.name.c_str(), keyLayoutName.string());
+                        deviceIdentifier.name.c_str(), keyCharacterMapName.string());
             }
         }
 
@@ -70,25 +70,25 @@
     }
 
     // Try searching by device identifier.
-    if (probeKeyMap(deviceIdenfifier, "")) {
+    if (probeKeyMap(deviceIdentifier, "")) {
         return OK;
     }
 
     // Fall back on the Generic key map.
     // TODO Apply some additional heuristics here to figure out what kind of
     //      generic key map to use (US English, etc.) for typical external keyboards.
-    if (probeKeyMap(deviceIdenfifier, "Generic")) {
+    if (probeKeyMap(deviceIdentifier, "Generic")) {
         return OK;
     }
 
     // Try the Virtual key map as a last resort.
-    if (probeKeyMap(deviceIdenfifier, "Virtual")) {
+    if (probeKeyMap(deviceIdentifier, "Virtual")) {
         return OK;
     }
 
     // Give up!
     ALOGE("Could not determine key map for device '%s' and no default key maps were found!",
-            deviceIdenfifier.name.c_str());
+            deviceIdentifier.name.c_str());
     return NAME_NOT_FOUND;
 }
 
diff --git a/libs/sensorprivacy/Android.bp b/libs/sensorprivacy/Android.bp
index e0e3469..4a606ff 100644
--- a/libs/sensorprivacy/Android.bp
+++ b/libs/sensorprivacy/Android.bp
@@ -28,8 +28,7 @@
     ],
 
     srcs: [
-        "aidl/android/hardware/ISensorPrivacyListener.aidl",
-        "aidl/android/hardware/ISensorPrivacyManager.aidl",
+        ":libsensorprivacy_aidl",
         "SensorPrivacyManager.cpp",
     ],
 
@@ -45,3 +44,12 @@
 
     export_shared_lib_headers: ["libbinder"],
 }
+
+filegroup {
+    name: "libsensorprivacy_aidl",
+    srcs: [
+        "aidl/android/hardware/ISensorPrivacyListener.aidl",
+        "aidl/android/hardware/ISensorPrivacyManager.aidl",
+    ],
+    path: "aidl",
+}
diff --git a/services/gpuservice/OWNERS b/services/gpuservice/OWNERS
new file mode 100644
index 0000000..5d02839
--- /dev/null
+++ b/services/gpuservice/OWNERS
@@ -0,0 +1,3 @@
+chrisforbes@google.com
+lpy@google.com
+zzyiwei@google.com
diff --git a/services/inputflinger/InputClassifier.cpp b/services/inputflinger/InputClassifier.cpp
index ef1a224..6a7f279 100644
--- a/services/inputflinger/InputClassifier.cpp
+++ b/services/inputflinger/InputClassifier.cpp
@@ -82,7 +82,7 @@
 // Check if the "deep touch" feature is on.
 static bool deepPressEnabled() {
     std::string flag_value = server_configurable_flags::GetServerConfigurableFlag(
-            INPUT_NATIVE_BOOT, DEEP_PRESS_ENABLED, "true");
+            INPUT_NATIVE_BOOT, DEEP_PRESS_ENABLED, "false");
     std::transform(flag_value.begin(), flag_value.end(), flag_value.begin(), ::tolower);
     if (flag_value == "1" || flag_value == "true") {
         ALOGI("Deep press feature enabled.");
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 203bd72..2abc1a7 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -50,12 +50,6 @@
     mOverrideScalingMode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
     mCurrentState.dataspace = ui::Dataspace::V0_SRGB;
 }
-BufferStateLayer::~BufferStateLayer() {
-    if (mActiveBuffer != nullptr) {
-        auto& engine(mFlinger->getRenderEngine());
-        engine.unbindExternalTextureBuffer(mActiveBuffer->getId());
-    }
-}
 
 // -----------------------------------------------------------------------
 // Interface implementation for Layer
@@ -571,11 +565,6 @@
         return BAD_VALUE;
     }
 
-    if (mActiveBuffer != nullptr) {
-        // todo: get this to work with BufferStateLayerCache
-        auto& engine(mFlinger->getRenderEngine());
-        engine.unbindExternalTextureBuffer(mActiveBuffer->getId());
-    }
     mActiveBuffer = s.buffer;
     mActiveBufferFence = s.acquireFence;
     auto& layerCompositionState = getCompositionLayer()->editState().frontEnd;
@@ -621,6 +610,10 @@
     }
 }
 
+void BufferStateLayer::bufferErased(const client_cache_t& clientCacheId) {
+    mFlinger->getRenderEngine().unbindExternalTextureBuffer(clientCacheId.id);
+}
+
 void BufferStateLayer::HwcSlotGenerator::bufferErased(const client_cache_t& clientCacheId) {
     std::lock_guard lock(mMutex);
     if (!clientCacheId.isValid()) {
diff --git a/services/surfaceflinger/BufferStateLayer.h b/services/surfaceflinger/BufferStateLayer.h
index 4e2bc45..db8ae0d 100644
--- a/services/surfaceflinger/BufferStateLayer.h
+++ b/services/surfaceflinger/BufferStateLayer.h
@@ -34,7 +34,6 @@
 class BufferStateLayer : public BufferLayer {
 public:
     explicit BufferStateLayer(const LayerCreationArgs&);
-    ~BufferStateLayer() override;
 
     // -----------------------------------------------------------------------
     // Interface implementation for Layer
@@ -103,6 +102,9 @@
     bool fenceHasSignaled() const override;
     bool framePresentTimeIsCurrent() const override;
 
+    // Inherit from ClientCache::ErasedRecipient
+    void bufferErased(const client_cache_t& clientCacheId) override;
+
 private:
     nsecs_t getDesiredPresentTime() override;
     std::shared_ptr<FenceTime> getCurrentFenceTime() const override;
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 5c55111..6db6beb 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -17,8 +17,6 @@
 #ifndef ANDROID_LAYER_H
 #define ANDROID_LAYER_H
 
-#include <sys/types.h>
-
 #include <compositionengine/LayerFE.h>
 #include <gui/BufferQueue.h>
 #include <gui/ISurfaceComposerClient.h>
@@ -28,6 +26,7 @@
 #include <math/vec4.h>
 #include <renderengine/Mesh.h>
 #include <renderengine/Texture.h>
+#include <sys/types.h>
 #include <ui/FloatRect.h>
 #include <ui/FrameStats.h>
 #include <ui/GraphicBuffer.h>
@@ -44,16 +43,16 @@
 #include <vector>
 
 #include "Client.h"
+#include "ClientCache.h"
+#include "DisplayHardware/ComposerHal.h"
+#include "DisplayHardware/HWComposer.h"
 #include "FrameTracker.h"
 #include "LayerVector.h"
 #include "MonitoredProducer.h"
+#include "RenderArea.h"
 #include "SurfaceFlinger.h"
 #include "TransactionCompletedThread.h"
 
-#include "DisplayHardware/ComposerHal.h"
-#include "DisplayHardware/HWComposer.h"
-#include "RenderArea.h"
-
 using namespace android::surfaceflinger;
 
 namespace android {
@@ -94,7 +93,7 @@
     LayerMetadata metadata;
 };
 
-class Layer : public virtual compositionengine::LayerFE {
+class Layer : public virtual compositionengine::LayerFE, public ClientCache::ErasedRecipient {
     static std::atomic<int32_t> sSequence;
 
 public:
@@ -701,6 +700,9 @@
     compositionengine::OutputLayer* findOutputLayerForDisplay(
             const sp<const DisplayDevice>& display) const;
 
+    // Inherit from ClientCache::ErasedRecipient
+    void bufferErased(const client_cache_t& /*clientCacheId*/) override {}
+
 protected:
     // constant
     sp<SurfaceFlinger> mFlinger;
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index 05bad4d..9d1f777 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -76,6 +76,10 @@
             return StringPrintf("VSync{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
                                 ", count=%u}",
                                 event.header.displayId, event.vsync.count);
+        case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
+            return StringPrintf("ConfigChanged{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
+                                ", configId=%u}",
+                                event.header.displayId, event.config.configId);
         default:
             return "Event{}";
     }
@@ -107,8 +111,10 @@
 } // namespace
 
 EventThreadConnection::EventThreadConnection(EventThread* eventThread,
-                                             ResyncCallback resyncCallback)
+                                             ResyncCallback resyncCallback,
+                                             ISurfaceComposer::ConfigChanged configChanged)
       : resyncCallback(std::move(resyncCallback)),
+        configChanged(configChanged),
         mEventThread(eventThread),
         mChannel(gui::BitTube::DefaultSize) {}
 
@@ -203,8 +209,10 @@
     mVSyncSource->setPhaseOffset(phaseOffset);
 }
 
-sp<EventThreadConnection> EventThread::createEventConnection(ResyncCallback resyncCallback) const {
-    return new EventThreadConnection(const_cast<EventThread*>(this), std::move(resyncCallback));
+sp<EventThreadConnection> EventThread::createEventConnection(
+        ResyncCallback resyncCallback, ISurfaceComposer::ConfigChanged configChanged) const {
+    return new EventThreadConnection(const_cast<EventThread*>(this), std::move(resyncCallback),
+                                     configChanged);
 }
 
 status_t EventThread::registerDisplayEventConnection(const sp<EventThreadConnection>& connection) {
@@ -398,9 +406,11 @@
                                      const sp<EventThreadConnection>& connection) const {
     switch (event.header.type) {
         case DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG:
-        case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
             return true;
 
+        case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
+            return connection->configChanged == ISurfaceComposer::eConfigChangedDispatch;
+
         case DisplayEventReceiver::DISPLAY_EVENT_VSYNC:
             switch (connection->vsyncRequest) {
                 case VSyncRequest::None:
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index 61530c6..dd23b88 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -69,7 +69,8 @@
 
 class EventThreadConnection : public BnDisplayEventConnection {
 public:
-    EventThreadConnection(EventThread*, ResyncCallback);
+    EventThreadConnection(EventThread*, ResyncCallback,
+                          ISurfaceComposer::ConfigChanged configChanged);
     virtual ~EventThreadConnection();
 
     virtual status_t postEvent(const DisplayEventReceiver::Event& event);
@@ -82,6 +83,7 @@
     const ResyncCallback resyncCallback;
 
     VSyncRequest vsyncRequest = VSyncRequest::None;
+    const ISurfaceComposer::ConfigChanged configChanged;
 
 private:
     virtual void onFirstRef();
@@ -93,7 +95,8 @@
 public:
     virtual ~EventThread();
 
-    virtual sp<EventThreadConnection> createEventConnection(ResyncCallback) const = 0;
+    virtual sp<EventThreadConnection> createEventConnection(
+            ResyncCallback, ISurfaceComposer::ConfigChanged configChanged) const = 0;
 
     // called before the screen is turned off from main thread
     virtual void onScreenReleased() = 0;
@@ -128,7 +131,8 @@
     EventThread(std::unique_ptr<VSyncSource>, InterceptVSyncsCallback, const char* threadName);
     ~EventThread();
 
-    sp<EventThreadConnection> createEventConnection(ResyncCallback) const override;
+    sp<EventThreadConnection> createEventConnection(
+            ResyncCallback, ISurfaceComposer::ConfigChanged configChanged) const override;
 
     status_t registerDisplayEventConnection(const sp<EventThreadConnection>& connection) override;
     void setVsyncRate(uint32_t rate, const sp<EventThreadConnection>& connection) override;
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index baf900d..fcb307f 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -96,7 +96,8 @@
     }
 
     mEventThread = eventThread;
-    mEvents = eventThread->createEventConnection(std::move(resyncCallback));
+    mEvents = eventThread->createEventConnection(std::move(resyncCallback),
+                                                 ISurfaceComposer::eConfigChangedSuppress);
     mEvents->stealReceiveChannel(&mEventTube);
     mLooper->addFd(mEventTube.getFd(), 0, Looper::EVENT_INPUT, MessageQueue::cb_eventReceiver,
                    this);
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index e2a348e..afcf3d4 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -129,7 +129,8 @@
                             std::move(interceptCallback));
 
     auto eventThreadConnection =
-            createConnectionInternal(eventThread.get(), std::move(resyncCallback));
+            createConnectionInternal(eventThread.get(), std::move(resyncCallback),
+                                     ISurfaceComposer::eConfigChangedSuppress);
     mConnections.emplace(id,
                          std::make_unique<Connection>(new ConnectionHandle(id),
                                                       eventThreadConnection,
@@ -146,16 +147,18 @@
                                                std::move(interceptCallback), connectionName);
 }
 
-sp<EventThreadConnection> Scheduler::createConnectionInternal(EventThread* eventThread,
-                                                              ResyncCallback&& resyncCallback) {
-    return eventThread->createEventConnection(std::move(resyncCallback));
+sp<EventThreadConnection> Scheduler::createConnectionInternal(
+        EventThread* eventThread, ResyncCallback&& resyncCallback,
+        ISurfaceComposer::ConfigChanged configChanged) {
+    return eventThread->createEventConnection(std::move(resyncCallback), configChanged);
 }
 
 sp<IDisplayEventConnection> Scheduler::createDisplayEventConnection(
-        const sp<Scheduler::ConnectionHandle>& handle, ResyncCallback resyncCallback) {
+        const sp<Scheduler::ConnectionHandle>& handle, ResyncCallback resyncCallback,
+        ISurfaceComposer::ConfigChanged configChanged) {
     RETURN_VALUE_IF_INVALID(nullptr);
     return createConnectionInternal(mConnections[handle->id]->thread.get(),
-                                    std::move(resyncCallback));
+                                    std::move(resyncCallback), configChanged);
 }
 
 EventThread* Scheduler::getEventThread(const sp<Scheduler::ConnectionHandle>& handle) {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index d311f62..597f9a2 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -100,8 +100,9 @@
                                           ResyncCallback,
                                           impl::EventThread::InterceptVSyncsCallback);
 
-    sp<IDisplayEventConnection> createDisplayEventConnection(const sp<ConnectionHandle>& handle,
-                                                             ResyncCallback);
+    sp<IDisplayEventConnection> createDisplayEventConnection(
+            const sp<ConnectionHandle>& handle, ResyncCallback,
+            ISurfaceComposer::ConfigChanged configChanged);
 
     // Getter methods.
     EventThread* getEventThread(const sp<ConnectionHandle>& handle);
@@ -197,7 +198,8 @@
     enum class TouchState { INACTIVE, ACTIVE };
 
     // Creates a connection on the given EventThread and forwards the given callbacks.
-    sp<EventThreadConnection> createConnectionInternal(EventThread*, ResyncCallback&&);
+    sp<EventThreadConnection> createConnectionInternal(EventThread*, ResyncCallback&&,
+                                                       ISurfaceComposer::ConfigChanged);
 
     nsecs_t calculateAverage() const;
     void updateFrameSkipping(const int64_t skipCount);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index e79b082..50fdb2e 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1372,7 +1372,7 @@
 // ----------------------------------------------------------------------------
 
 sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection(
-        ISurfaceComposer::VsyncSource vsyncSource) {
+        ISurfaceComposer::VsyncSource vsyncSource, ISurfaceComposer::ConfigChanged configChanged) {
     auto resyncCallback = mScheduler->makeResyncCallback([this] {
         Mutex::Autolock lock(mStateLock);
         return getVsyncPeriod();
@@ -1381,7 +1381,8 @@
     const auto& handle =
             vsyncSource == eVsyncSourceSurfaceFlinger ? mSfConnectionHandle : mAppConnectionHandle;
 
-    return mScheduler->createDisplayEventConnection(handle, std::move(resyncCallback));
+    return mScheduler->createDisplayEventConnection(handle, std::move(resyncCallback),
+                                                    configChanged);
 }
 
 // ----------------------------------------------------------------------------
@@ -4148,6 +4149,9 @@
     sp<GraphicBuffer> buffer;
     if (bufferChanged && cacheIdChanged) {
         ClientCache::getInstance().add(s.cachedBuffer, s.buffer);
+        ClientCache::getInstance().registerErasedRecipient(s.cachedBuffer,
+                                                           wp<ClientCache::ErasedRecipient>(layer));
+        getRenderEngine().cacheExternalTextureBuffer(s.buffer);
         buffer = s.buffer;
     } else if (cacheIdChanged) {
         buffer = ClientCache::getInstance().get(s.cachedBuffer);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index df6cdf2..fd72f68 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -407,7 +407,9 @@
             const sp<IGraphicBufferProducer>& bufferProducer) const override;
     status_t getSupportedFrameTimestamps(std::vector<FrameEvent>* outSupported) const override;
     sp<IDisplayEventConnection> createDisplayEventConnection(
-            ISurfaceComposer::VsyncSource vsyncSource = eVsyncSourceApp) override;
+            ISurfaceComposer::VsyncSource vsyncSource = eVsyncSourceApp,
+            ISurfaceComposer::ConfigChanged configChanged =
+                    ISurfaceComposer::eConfigChangedSuppress) override;
     status_t captureScreen(const sp<IBinder>& displayToken, sp<GraphicBuffer>* outBuffer,
             bool& outCapturedSecureLayers, const ui::Dataspace reqDataspace,
             const ui::PixelFormat reqPixelFormat, Rect sourceCrop,
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index ea908a9..dbd9b84 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -55,8 +55,9 @@
     class MockEventThreadConnection : public EventThreadConnection {
     public:
         MockEventThreadConnection(android::impl::EventThread* eventThread,
-                                  ResyncCallback&& resyncCallback)
-              : EventThreadConnection(eventThread, std::move(resyncCallback)) {}
+                                  ResyncCallback&& resyncCallback,
+                                  ISurfaceComposer::ConfigChanged configChanged)
+              : EventThreadConnection(eventThread, std::move(resyncCallback), configChanged) {}
         MOCK_METHOD1(postEvent, status_t(const DisplayEventReceiver::Event& event));
     };
 
@@ -67,7 +68,8 @@
     ~EventThreadTest() override;
 
     void createThread();
-    sp<MockEventThreadConnection> createConnection(ConnectionEventRecorder& recorder);
+    sp<MockEventThreadConnection> createConnection(ConnectionEventRecorder& recorder,
+                                                   ISurfaceComposer::ConfigChanged configChanged);
 
     void expectVSyncSetEnabledCallReceived(bool expectedState);
     void expectVSyncSetPhaseOffsetCallReceived(nsecs_t expectedPhaseOffset);
@@ -110,7 +112,8 @@
             .WillRepeatedly(Invoke(mVSyncSetPhaseOffsetCallRecorder.getInvocable()));
 
     createThread();
-    mConnection = createConnection(mConnectionEventCallRecorder);
+    mConnection = createConnection(mConnectionEventCallRecorder,
+                                   ISurfaceComposer::eConfigChangedDispatch);
 
     // A display must be connected for VSYNC events to be delivered.
     mThread->onHotplugReceived(INTERNAL_DISPLAY_ID, true);
@@ -138,9 +141,10 @@
 }
 
 sp<EventThreadTest::MockEventThreadConnection> EventThreadTest::createConnection(
-        ConnectionEventRecorder& recorder) {
+        ConnectionEventRecorder& recorder, ISurfaceComposer::ConfigChanged configChanged) {
     sp<MockEventThreadConnection> connection =
-            new MockEventThreadConnection(mThread.get(), mResyncCallRecorder.getInvocable());
+            new MockEventThreadConnection(mThread.get(), mResyncCallRecorder.getInvocable(),
+                                          configChanged);
     EXPECT_CALL(*connection, postEvent(_)).WillRepeatedly(Invoke(recorder.getInvocable()));
     return connection;
 }
@@ -267,7 +271,9 @@
 TEST_F(EventThreadTest, setVsyncRateZeroPostsNoVSyncEventsToThatConnection) {
     // Create a first connection, register it, and request a vsync rate of zero.
     ConnectionEventRecorder firstConnectionEventRecorder{0};
-    sp<MockEventThreadConnection> firstConnection = createConnection(firstConnectionEventRecorder);
+    sp<MockEventThreadConnection> firstConnection =
+            createConnection(firstConnectionEventRecorder,
+                             ISurfaceComposer::eConfigChangedSuppress);
     mThread->setVsyncRate(0, firstConnection);
 
     // By itself, this should not enable vsync events
@@ -277,7 +283,8 @@
     // However if there is another connection which wants events at a nonzero rate.....
     ConnectionEventRecorder secondConnectionEventRecorder{0};
     sp<MockEventThreadConnection> secondConnection =
-            createConnection(secondConnectionEventRecorder);
+            createConnection(secondConnectionEventRecorder,
+                             ISurfaceComposer::eConfigChangedSuppress);
     mThread->setVsyncRate(1, secondConnection);
 
     // EventThread should enable vsync callbacks.
@@ -363,7 +370,9 @@
 
 TEST_F(EventThreadTest, connectionsRemovedIfEventDeliveryError) {
     ConnectionEventRecorder errorConnectionEventRecorder{NO_MEMORY};
-    sp<MockEventThreadConnection> errorConnection = createConnection(errorConnectionEventRecorder);
+    sp<MockEventThreadConnection> errorConnection =
+            createConnection(errorConnectionEventRecorder,
+                             ISurfaceComposer::eConfigChangedSuppress);
     mThread->setVsyncRate(1, errorConnection);
 
     // EventThread should enable vsync callbacks.
@@ -387,7 +396,9 @@
 
 TEST_F(EventThreadTest, eventsDroppedIfNonfatalEventDeliveryError) {
     ConnectionEventRecorder errorConnectionEventRecorder{WOULD_BLOCK};
-    sp<MockEventThreadConnection> errorConnection = createConnection(errorConnectionEventRecorder);
+    sp<MockEventThreadConnection> errorConnection =
+            createConnection(errorConnectionEventRecorder,
+                             ISurfaceComposer::eConfigChangedSuppress);
     mThread->setVsyncRate(1, errorConnection);
 
     // EventThread should enable vsync callbacks.
@@ -449,5 +460,18 @@
     expectConfigChangedEventReceivedByConnection(DISPLAY_ID_64BIT, 7);
 }
 
+TEST_F(EventThreadTest, suppressConfigChanged) {
+    ConnectionEventRecorder suppressConnectionEventRecorder{0};
+    sp<MockEventThreadConnection> suppressConnection =
+            createConnection(suppressConnectionEventRecorder,
+                             ISurfaceComposer::eConfigChangedSuppress);
+
+    mThread->onConfigChanged(INTERNAL_DISPLAY_ID, 9);
+    expectConfigChangedEventReceivedByConnection(INTERNAL_DISPLAY_ID, 9);
+
+    auto args = suppressConnectionEventRecorder.waitForCall();
+    ASSERT_FALSE(args.has_value());
+}
+
 } // namespace
 } // namespace android
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 1f8b111..af5ccbc 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -25,7 +25,8 @@
     class MockEventThreadConnection : public android::EventThreadConnection {
     public:
         explicit MockEventThreadConnection(EventThread* eventThread)
-              : EventThreadConnection(eventThread, ResyncCallback()) {}
+              : EventThreadConnection(eventThread, ResyncCallback(),
+                                      ISurfaceComposer::eConfigChangedSuppress) {}
         ~MockEventThreadConnection() = default;
 
         MOCK_METHOD1(stealReceiveChannel, status_t(gui::BitTube* outChannel));
@@ -81,7 +82,7 @@
 
     // createConnection call to scheduler makes a createEventConnection call to EventThread. Make
     // sure that call gets executed and returns an EventThread::Connection object.
-    EXPECT_CALL(*mEventThread, createEventConnection(_))
+    EXPECT_CALL(*mEventThread, createEventConnection(_, _))
             .WillRepeatedly(Return(mEventThreadConnection));
 
     mConnectionHandle = mScheduler->createConnection("appConnection", 16, ResyncCallback(),
@@ -105,7 +106,10 @@
     // exceptions, just gracefully continues.
     sp<IDisplayEventConnection> returnedValue;
     ASSERT_NO_FATAL_FAILURE(
-            returnedValue = mScheduler->createDisplayEventConnection(nullptr, ResyncCallback()));
+            returnedValue =
+                    mScheduler->createDisplayEventConnection(nullptr, ResyncCallback(),
+                                                             ISurfaceComposer::
+                                                                     eConfigChangedSuppress));
     EXPECT_TRUE(returnedValue == nullptr);
     EXPECT_TRUE(mScheduler->getEventThread(nullptr) == nullptr);
     EXPECT_TRUE(mScheduler->getEventConnection(nullptr) == nullptr);
@@ -126,7 +130,9 @@
     sp<IDisplayEventConnection> returnedValue;
     ASSERT_NO_FATAL_FAILURE(
             returnedValue =
-                    mScheduler->createDisplayEventConnection(connectionHandle, ResyncCallback()));
+                    mScheduler->createDisplayEventConnection(connectionHandle, ResyncCallback(),
+                                                             ISurfaceComposer::
+                                                                     eConfigChangedSuppress));
     EXPECT_TRUE(returnedValue == nullptr);
     EXPECT_TRUE(mScheduler->getEventThread(connectionHandle) == nullptr);
     EXPECT_TRUE(mScheduler->getEventConnection(connectionHandle) == nullptr);
@@ -155,7 +161,9 @@
     sp<IDisplayEventConnection> returnedValue;
     ASSERT_NO_FATAL_FAILURE(
             returnedValue =
-                    mScheduler->createDisplayEventConnection(mConnectionHandle, ResyncCallback()));
+                    mScheduler->createDisplayEventConnection(mConnectionHandle, ResyncCallback(),
+                                                             ISurfaceComposer::
+                                                                     eConfigChangedSuppress));
     EXPECT_TRUE(returnedValue != nullptr);
     ASSERT_EQ(returnedValue, mEventThreadConnection);
 
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index c3d2b8d..cb6980e 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <gmock/gmock.h>
+#include <gui/ISurfaceComposer.h>
 
 #include "Scheduler/EventThread.h"
 #include "Scheduler/RefreshRateConfigs.h"
@@ -34,7 +35,8 @@
     // Scheduler::Connection. This allows plugging in mock::EventThread.
     sp<Scheduler::ConnectionHandle> addConnection(std::unique_ptr<EventThread> eventThread) {
         sp<EventThreadConnection> eventThreadConnection =
-                new EventThreadConnection(eventThread.get(), ResyncCallback());
+                new EventThreadConnection(eventThread.get(), ResyncCallback(),
+                                          ISurfaceComposer::eConfigChangedSuppress);
         const int64_t id = sNextId++;
         mConnections.emplace(id,
                              std::make_unique<Scheduler::Connection>(new ConnectionHandle(id),
diff --git a/services/surfaceflinger/tests/unittests/mock/MockEventThread.h b/services/surfaceflinger/tests/unittests/mock/MockEventThread.h
index 5b5f8e7..ed35ebf 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockEventThread.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockEventThread.h
@@ -28,7 +28,8 @@
     EventThread();
     ~EventThread() override;
 
-    MOCK_CONST_METHOD1(createEventConnection, sp<EventThreadConnection>(ResyncCallback));
+    MOCK_CONST_METHOD2(createEventConnection,
+                       sp<EventThreadConnection>(ResyncCallback, ISurfaceComposer::ConfigChanged));
     MOCK_METHOD0(onScreenReleased, void());
     MOCK_METHOD0(onScreenAcquired, void());
     MOCK_METHOD2(onHotplugReceived, void(PhysicalDisplayId, bool));
diff --git a/services/vr/hardware_composer/Android.bp b/services/vr/hardware_composer/Android.bp
index d9df204..021d8cb 100644
--- a/services/vr/hardware_composer/Android.bp
+++ b/services/vr/hardware_composer/Android.bp
@@ -1,180 +1,152 @@
 cc_library_shared {
-  name: "libvr_hwc-hal",
+    name: "libvr_hwc-hal",
 
-  srcs: [
-    "impl/vr_hwc.cpp",
-    "impl/vr_composer_client.cpp",
-  ],
+    srcs: [
+        "impl/vr_hwc.cpp",
+        "impl/vr_composer_client.cpp",
+    ],
 
-  static_libs: [
-    "libbroadcastring",
-    "libdisplay",
-  ],
+    static_libs: [
+        "libbroadcastring",
+        "libdisplay",
+    ],
 
-  shared_libs: [
-    "android.frameworks.vr.composer@1.0",
-    "android.hardware.graphics.composer@2.1",
-    "android.hardware.graphics.mapper@2.0",
-    "android.hardware.graphics.mapper@3.0",
-    "libbase",
-    "libbufferhubqueue",
-    "libbinder",
-    "libcutils",
-    "libfmq",
-    "libhardware",
-    "libhidlbase",
-    "libhidltransport",
-    "liblog",
-    "libsync",
-    "libui",
-    "libutils",
-    "libpdx_default_transport",
-  ],
+    shared_libs: [
+        "android.frameworks.vr.composer@1.0",
+        "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@3.0",
+        "libbase",
+        "libbufferhubqueue",
+        "libbinder",
+        "libcutils",
+        "libfmq",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libsync",
+        "libui",
+        "libutils",
+        "libpdx_default_transport",
+    ],
 
-  header_libs: [
-    "android.hardware.graphics.composer@2.1-command-buffer",
-    "android.hardware.graphics.composer@2.1-hal",
-  ],
+    header_libs: [
+        "android.hardware.graphics.composer@2.1-command-buffer",
+        "android.hardware.graphics.composer@2.1-hal",
+    ],
 
-  export_header_lib_headers: [
-    "android.hardware.graphics.composer@2.1-hal",
-  ],
+    export_header_lib_headers: [
+        "android.hardware.graphics.composer@2.1-hal",
+    ],
 
-  export_static_lib_headers: [
-    "libdisplay",
-  ],
+    export_static_lib_headers: [
+        "libdisplay",
+    ],
 
-  export_shared_lib_headers: [
-    "android.frameworks.vr.composer@1.0",
-    "android.hardware.graphics.composer@2.1",
-  ],
+    export_shared_lib_headers: [
+        "android.frameworks.vr.composer@1.0",
+        "android.hardware.graphics.composer@2.1",
+    ],
 
-  export_include_dirs: ["."],
+    export_include_dirs: ["."],
 
-  cflags: [
-    "-DLOG_TAG=\"vr_hwc\"",
-    "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
-    "-Wall",
-    "-Werror",
-    "-Wno-error=unused-private-field",
-    // Warnings in vr_hwc.cpp to be fixed after sync of goog/master.
-    "-Wno-sign-compare",
-    "-Wno-unused-parameter",
-  ],
+    cflags: [
+        "-DLOG_TAG=\"vr_hwc\"",
+        "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
+        "-Wall",
+        "-Werror",
+        "-Wno-error=unused-private-field",
+        // Warnings in vr_hwc.cpp to be fixed after sync of goog/master.
+        "-Wno-sign-compare",
+        "-Wno-unused-parameter",
+    ],
 
 }
 
 cc_library_static {
-  name: "libvr_hwc-binder",
-  srcs: [
-    "aidl/android/dvr/IVrComposer.aidl",
-    "aidl/android/dvr/IVrComposerCallback.aidl",
-    "aidl/android/dvr/parcelable_composer_frame.cpp",
-    "aidl/android/dvr/parcelable_composer_layer.cpp",
-    "aidl/android/dvr/parcelable_unique_fd.cpp",
-  ],
-  aidl: {
-    include_dirs: ["frameworks/native/services/vr/hardware_composer/aidl"],
-    export_aidl_headers: true,
-  },
-  export_include_dirs: ["aidl"],
-
-  cflags: [
-    "-Wall",
-    "-Werror",
-  ],
-
-  shared_libs: [
-    "libbinder",
-    "libui",
-    "libutils",
-    "libvr_hwc-hal",
-  ],
-}
-
-cc_library_static {
-  name: "libvr_hwc-impl",
-  srcs: [
-    "vr_composer.cpp",
-  ],
-  static_libs: [
-    "libvr_hwc-binder",
-  ],
-  shared_libs: [
-    "libbase",
-    "libbinder",
-    "liblog",
-    "libui",
-    "libutils",
-    "libvr_hwc-hal",
-  ],
-  export_shared_lib_headers: [
-    "libvr_hwc-hal",
-  ],
-  cflags: [
-    "-DLOG_TAG=\"vr_hwc\"",
-    "-Wall",
-    "-Werror",
-  ],
+    name: "libvr_hwc-impl",
+    srcs: [
+        "vr_composer.cpp",
+    ],
+    static_libs: [
+        "libvr_hwc-binder",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "liblog",
+        "libui",
+        "libutils",
+        "libvr_hwc-hal",
+    ],
+    export_shared_lib_headers: [
+        "libvr_hwc-hal",
+    ],
+    cflags: [
+        "-DLOG_TAG=\"vr_hwc\"",
+        "-Wall",
+        "-Werror",
+    ],
 }
 
 cc_binary {
-  name: "vr_hwc",
-  vintf_fragments: ["manifest_vr_hwc.xml"],
-  srcs: [
-    "vr_hardware_composer_service.cpp"
-  ],
-  static_libs: [
-    "libvr_hwc-impl",
-    // NOTE: This needs to be included after the *-impl lib otherwise the
-    // symbols in the *-binder library get optimized out.
-    "libvr_hwc-binder",
-  ],
-  shared_libs: [
-    "android.frameworks.vr.composer@1.0",
-    "android.hardware.graphics.composer@2.1",
-    "libbase",
-    "libbinder",
-    "liblog",
-    "libhardware",
-    "libhwbinder",
-    "libui",
-    "libutils",
-    "libvr_hwc-hal",
-  ],
-  cflags: [
-    "-DLOG_TAG=\"vr_hwc\"",
-    "-Wall",
-    "-Werror",
-  ],
-  init_rc: [
-    "vr_hwc.rc",
-  ],
+    name: "vr_hwc",
+    vintf_fragments: ["manifest_vr_hwc.xml"],
+    srcs: [
+        "vr_hardware_composer_service.cpp",
+    ],
+    static_libs: [
+        "libvr_hwc-impl",
+        // NOTE: This needs to be included after the *-impl lib otherwise the
+        // symbols in the *-binder library get optimized out.
+        "libvr_hwc-binder",
+    ],
+    shared_libs: [
+        "android.frameworks.vr.composer@1.0",
+        "android.hardware.graphics.composer@2.1",
+        "libbase",
+        "libbinder",
+        "liblog",
+        "libhardware",
+        "libhwbinder",
+        "libui",
+        "libutils",
+        "libvr_hwc-hal",
+    ],
+    cflags: [
+        "-DLOG_TAG=\"vr_hwc\"",
+        "-Wall",
+        "-Werror",
+    ],
+    init_rc: [
+        "vr_hwc.rc",
+    ],
 }
 
 cc_test {
-  name: "vr_hwc_test",
-  gtest: true,
-  srcs: ["tests/vr_composer_test.cpp"],
-  static_libs: [
-    "libgtest",
-    "libvr_hwc-impl",
-    // NOTE: This needs to be included after the *-impl lib otherwise the
-    // symbols in the *-binder library get optimized out.
-    "libvr_hwc-binder",
-  ],
-  cflags: [
-    "-Wall",
-    "-Werror",
-    // warnings in vr_composer_test.cpp to be fixed after merge of goog/master
-    "-Wno-sign-compare",
-    "-Wno-unused-parameter",
-  ],
-  shared_libs: [
-    "libbase",
-    "libbinder",
-    "liblog",
-    "libui",
-    "libutils",
-  ],
+    name: "vr_hwc_test",
+    gtest: true,
+    srcs: ["tests/vr_composer_test.cpp"],
+    static_libs: [
+        "libgtest",
+        "libvr_hwc-impl",
+        // NOTE: This needs to be included after the *-impl lib otherwise the
+        // symbols in the *-binder library get optimized out.
+        "libvr_hwc-binder",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        // warnings in vr_composer_test.cpp to be fixed after merge of goog/master
+        "-Wno-sign-compare",
+        "-Wno-unused-parameter",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "liblog",
+        "libui",
+        "libutils",
+    ],
 }
diff --git a/services/vr/hardware_composer/aidl/Android.bp b/services/vr/hardware_composer/aidl/Android.bp
new file mode 100644
index 0000000..a1d5392
--- /dev/null
+++ b/services/vr/hardware_composer/aidl/Android.bp
@@ -0,0 +1,27 @@
+cc_library_static {
+    name: "libvr_hwc-binder",
+    srcs: [
+        "android/dvr/IVrComposer.aidl",
+        "android/dvr/IVrComposerCallback.aidl",
+        "android/dvr/parcelable_composer_frame.cpp",
+        "android/dvr/parcelable_composer_layer.cpp",
+        "android/dvr/parcelable_unique_fd.cpp",
+    ],
+    aidl: {
+        local_include_dirs: ["."],
+        export_aidl_headers: true,
+    },
+    export_include_dirs: ["."],
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+
+    shared_libs: [
+        "libbinder",
+        "libui",
+        "libutils",
+        "libvr_hwc-hal",
+    ],
+}
diff --git a/services/vr/virtual_touchpad/Android.bp b/services/vr/virtual_touchpad/Android.bp
index 131a306..dcaa663 100644
--- a/services/vr/virtual_touchpad/Android.bp
+++ b/services/vr/virtual_touchpad/Android.bp
@@ -62,7 +62,7 @@
 service_src = [
     "main.cpp",
     "VirtualTouchpadService.cpp",
-    "aidl/android/dvr/IVirtualTouchpadService.aidl",
+    ":virtualtouchpad_aidl",
 ]
 
 service_static_libs = [
@@ -99,7 +99,7 @@
 client_src = [
     "VirtualTouchpadClient.cpp",
     "DvrVirtualTouchpadClient.cpp",
-    "aidl/android/dvr/IVirtualTouchpadService.aidl",
+    ":virtualtouchpad_aidl",
 ]
 
 client_shared_libs = [
@@ -122,3 +122,9 @@
     name: "libvirtualtouchpadclient",
     export_include_dirs: ["include"],
 }
+
+filegroup {
+    name: "virtualtouchpad_aidl",
+    srcs: ["aidl/android/dvr/IVirtualTouchpadService.aidl"],
+    path: "aidl",
+}