Merge "Reset time-since-update if the tracked value is nonmonotonic"
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 39ef0b5..8d23efc 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -1455,7 +1455,7 @@
 }
 
 binder::Status InstalldNativeService::freeCache(const std::optional<std::string>& uuid,
-        int64_t targetFreeBytes, int64_t cacheReservedBytes, int32_t flags) {
+        int64_t targetFreeBytes, int32_t flags) {
     ENFORCE_UID(AID_SYSTEM);
     CHECK_ARGUMENT_UUID(uuid);
     std::lock_guard<std::recursive_mutex> lock(mLock);
@@ -1558,12 +1558,6 @@
                 break;
             }
 
-            // Only keep clearing when we haven't pushed into reserved area
-            if (cacheReservedBytes > 0 && cleared >= (cacheTotal - cacheReservedBytes)) {
-                LOG(DEBUG) << "Refusing to clear cached data in reserved space";
-                break;
-            }
-
             // Find the best tracker to work with; this might involve swapping
             // if the active tracker is no longer the most over quota
             bool nextBetter = active && !queue.empty()
diff --git a/cmds/installd/InstalldNativeService.h b/cmds/installd/InstalldNativeService.h
index 8cfda01..3fdb01a 100644
--- a/cmds/installd/InstalldNativeService.h
+++ b/cmds/installd/InstalldNativeService.h
@@ -145,7 +145,7 @@
 
     binder::Status rmPackageDir(const std::string& packageDir);
     binder::Status freeCache(const std::optional<std::string>& uuid, int64_t targetFreeBytes,
-            int64_t cacheReservedBytes, int32_t flags);
+            int32_t flags);
     binder::Status linkNativeLibraryDirectory(const std::optional<std::string>& uuid,
             const std::string& packageName, const std::string& nativeLibPath32, int32_t userId);
     binder::Status createOatDir(const std::string& oatDir, const std::string& instructionSet);
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index 637a9f2..9c51ff7 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -86,8 +86,7 @@
     void destroyProfileSnapshot(@utf8InCpp String packageName, @utf8InCpp String profileName);
 
     void rmPackageDir(@utf8InCpp String packageDir);
-    void freeCache(@nullable @utf8InCpp String uuid, long targetFreeBytes,
-            long cacheReservedBytes, int flags);
+    void freeCache(@nullable @utf8InCpp String uuid, long targetFreeBytes, int flags);
     void linkNativeLibraryDirectory(@nullable @utf8InCpp String uuid,
             @utf8InCpp String packageName, @utf8InCpp String nativeLibPath32, int userId);
     void createOatDir(@utf8InCpp String oatDir, @utf8InCpp String instructionSet);
diff --git a/cmds/installd/tests/installd_cache_test.cpp b/cmds/installd/tests/installd_cache_test.cpp
index 863cdfe..9a1e17e 100644
--- a/cmds/installd/tests/installd_cache_test.cpp
+++ b/cmds/installd/tests/installd_cache_test.cpp
@@ -145,7 +145,7 @@
     EXPECT_EQ(0, exists("com.example/cache/foo/one"));
     EXPECT_EQ(0, exists("com.example/cache/foo/two"));
 
-    service->freeCache(testUuid, kTbInBytes, 0,
+    service->freeCache(testUuid, kTbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(0, exists("com.example/normal"));
@@ -153,6 +153,33 @@
     EXPECT_EQ(-1, exists("com.example/cache/foo/two"));
 }
 
+TEST_F(CacheTest, FreeCache_NonAggressive) {
+    LOG(INFO) << "FreeCache_NonAggressive";
+
+    mkdir("com.example");
+    touch("com.example/normal", 1 * kMbInBytes, 60);
+    mkdir("com.example/cache");
+    mkdir("com.example/cache/foo");
+    touch("com.example/cache/foo/one", 65 * kMbInBytes, 60);
+    touch("com.example/cache/foo/two", 2 * kMbInBytes, 120);
+
+    EXPECT_EQ(0, exists("com.example/normal"));
+    EXPECT_EQ(0, exists("com.example/cache/foo/one"));
+    EXPECT_EQ(0, exists("com.example/cache/foo/two"));
+
+    service->freeCache(testUuid, kTbInBytes, FLAG_FREE_CACHE_V2);
+
+    EXPECT_EQ(0, exists("com.example/normal"));
+    EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
+    EXPECT_EQ(0, exists("com.example/cache/foo/two"));
+
+    service->freeCache(testUuid, kTbInBytes, FLAG_FREE_CACHE_V2);
+
+    EXPECT_EQ(0, exists("com.example/normal"));
+    EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
+    EXPECT_EQ(0, exists("com.example/cache/foo/two"));
+}
+
 TEST_F(CacheTest, FreeCache_Age) {
     LOG(INFO) << "FreeCache_Age";
 
@@ -162,13 +189,13 @@
     touch("com.example/cache/foo/one", kMbInBytes, 60);
     touch("com.example/cache/foo/two", kMbInBytes, 120);
 
-    service->freeCache(testUuid, free() + kKbInBytes, 0,
+    service->freeCache(testUuid, free() + kKbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
     EXPECT_EQ(0, exists("com.example/cache/foo/two"));
 
-    service->freeCache(testUuid, free() + kKbInBytes, 0,
+    service->freeCache(testUuid, free() + kKbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
@@ -196,7 +223,7 @@
     EXPECT_EQ(2 * kMbInBytes, size("com.example/cache/bar/bar1"));
     EXPECT_EQ(2 * kMbInBytes, size("com.example/cache/bar/bar2"));
 
-    service->freeCache(testUuid, kTbInBytes, 0,
+    service->freeCache(testUuid, kTbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, exists("com.example/cache/foo/foo1"));
@@ -218,7 +245,7 @@
 
     setxattr("com.example/cache/foo", "user.cache_group");
 
-    service->freeCache(testUuid, free() + kKbInBytes, 0,
+    service->freeCache(testUuid, free() + kKbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, exists("com.example/cache/foo/foo1"));
@@ -263,7 +290,7 @@
     setxattr("com.example/cache/tomb", "user.cache_tombstone");
     setxattr("com.example/cache/tomb/group", "user.cache_group");
 
-    service->freeCache(testUuid, free() + kKbInBytes, 0,
+    service->freeCache(testUuid, free() + kKbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(kMbInBytes, size("com.example/cache/group/file1"));
@@ -284,7 +311,7 @@
     EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file1"));
     EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file2"));
 
-    service->freeCache(testUuid, free() + kKbInBytes, 0,
+    service->freeCache(testUuid, free() + kKbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, size("com.example/cache/group/file1"));
@@ -305,7 +332,7 @@
     EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file1"));
     EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file2"));
 
-    service->freeCache(testUuid, kTbInBytes, 0,
+    service->freeCache(testUuid, kTbInBytes,
             FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
 
     EXPECT_EQ(-1, size("com.example/cache/group/file1"));
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 9080822..e9149f3 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -138,7 +138,7 @@
         mSize(width, height),
         mRequestedSize(mSize),
         mFormat(format),
-        mNextTransaction(nullptr) {
+        mSyncTransaction(nullptr) {
     createBufferQueue(&mProducer, &mConsumer);
     // since the adapter is in the client process, set dequeue timeout
     // explicitly so that dequeueBuffer will block
@@ -290,7 +290,7 @@
                 // case, we don't actually want to flush the frames in between since they will get
                 // processed and merged with the sync transaction and released earlier than if they
                 // were sent to SF
-                if (mWaitForTransactionCallback && mNextTransaction == nullptr &&
+                if (mWaitForTransactionCallback && mSyncTransaction == nullptr &&
                     currFrameNumber >= mLastAcquiredFrameNumber) {
                     mWaitForTransactionCallback = false;
                     flushShadowQueue();
@@ -420,7 +420,7 @@
         mBufferItemConsumer->releaseBuffer(it->second, releaseBuffer.releaseFence);
         mSubmitted.erase(it);
         // Don't process the transactions here if mWaitForTransactionCallback is set. Instead, let
-        // onFrameAvailable handle processing them since it will merge with the nextTransaction.
+        // onFrameAvailable handle processing them since it will merge with the syncTransaction.
         if (!mWaitForTransactionCallback) {
             acquireNextBufferLocked(std::nullopt);
         }
@@ -593,15 +593,15 @@
     ATRACE_CALL();
     std::unique_lock _lock{mMutex};
 
-    const bool nextTransactionSet = mNextTransaction != nullptr;
-    BQA_LOGV("onFrameAvailable-start nextTransactionSet=%s", boolToString(nextTransactionSet));
-    if (nextTransactionSet) {
+    const bool syncTransactionSet = mSyncTransaction != nullptr;
+    BQA_LOGV("onFrameAvailable-start syncTransactionSet=%s", boolToString(syncTransactionSet));
+    if (syncTransactionSet) {
         if (mWaitForTransactionCallback) {
             // We are waiting on a previous sync's transaction callback so allow another sync
             // transaction to proceed.
             //
             // We need to first flush out the transactions that were in between the two syncs.
-            // We do this by merging them into mNextTransaction so any buffer merging will get
+            // We do this by merging them into mSyncTransaction so any buffer merging will get
             // a release callback invoked. The release callback will be async so we need to wait
             // on max acquired to make sure we have the capacity to acquire another buffer.
             if (maxBuffersAcquired(false /* includeExtraAcquire */)) {
@@ -625,12 +625,12 @@
     ATRACE_INT(mQueuedBufferTrace.c_str(),
                mNumFrameAvailable + mNumAcquired - mPendingRelease.size());
 
-    BQA_LOGV("onFrameAvailable framenumber=%" PRIu64 " nextTransactionSet=%s", item.mFrameNumber,
-             boolToString(nextTransactionSet));
+    BQA_LOGV("onFrameAvailable framenumber=%" PRIu64 " syncTransactionSet=%s", item.mFrameNumber,
+             boolToString(syncTransactionSet));
 
-    if (nextTransactionSet) {
-        acquireNextBufferLocked(std::move(mNextTransaction));
-        mNextTransaction = nullptr;
+    if (syncTransactionSet) {
+        acquireNextBufferLocked(std::move(mSyncTransaction));
+        mSyncTransaction = nullptr;
         mWaitForTransactionCallback = true;
     } else if (!mWaitForTransactionCallback) {
         acquireNextBufferLocked(std::nullopt);
@@ -652,9 +652,9 @@
     mDequeueTimestamps.erase(bufferId);
 };
 
-void BLASTBufferQueue::setNextTransaction(SurfaceComposerClient::Transaction* t) {
+void BLASTBufferQueue::setSyncTransaction(SurfaceComposerClient::Transaction* t) {
     std::lock_guard _lock{mMutex};
-    mNextTransaction = t;
+    mSyncTransaction = t;
 }
 
 bool BLASTBufferQueue::rejectBuffer(const BufferItem& item) {
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 4a63544..f718de8 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -94,7 +94,7 @@
                                      const std::vector<SurfaceControlStats>& stats);
     void releaseBufferCallback(const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
                                std::optional<uint32_t> currentMaxAcquiredBufferCount);
-    void setNextTransaction(SurfaceComposerClient::Transaction *t);
+    void setSyncTransaction(SurfaceComposerClient::Transaction* t);
     void mergeWithNextTransaction(SurfaceComposerClient::Transaction* t, uint64_t frameNumber);
     void applyPendingTransactions(uint64_t frameNumber);
 
@@ -208,7 +208,7 @@
     sp<IGraphicBufferProducer> mProducer;
     sp<BLASTBufferItemConsumer> mBufferItemConsumer;
 
-    SurfaceComposerClient::Transaction* mNextTransaction GUARDED_BY(mMutex);
+    SurfaceComposerClient::Transaction* mSyncTransaction GUARDED_BY(mMutex);
     std::vector<std::tuple<uint64_t /* framenumber */, SurfaceComposerClient::Transaction>>
             mPendingTransactions GUARDED_BY(mMutex);
 
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 8607e1d..194757f 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -109,15 +109,15 @@
         mBlastBufferQueueAdapter->update(sc, width, height, PIXEL_FORMAT_RGBA_8888);
     }
 
-    void setNextTransaction(Transaction* next) {
-        mBlastBufferQueueAdapter->setNextTransaction(next);
+    void setSyncTransaction(Transaction* sync) {
+        mBlastBufferQueueAdapter->setSyncTransaction(sync);
     }
 
     int getWidth() { return mBlastBufferQueueAdapter->mSize.width; }
 
     int getHeight() { return mBlastBufferQueueAdapter->mSize.height; }
 
-    Transaction* getNextTransaction() { return mBlastBufferQueueAdapter->mNextTransaction; }
+    Transaction* getSyncTransaction() { return mBlastBufferQueueAdapter->mSyncTransaction; }
 
     sp<IGraphicBufferProducer> getIGraphicBufferProducer() {
         return mBlastBufferQueueAdapter->getIGraphicBufferProducer();
@@ -337,7 +337,7 @@
     ASSERT_EQ(mSurfaceControl, adapter.getSurfaceControl());
     ASSERT_EQ(mDisplayWidth, adapter.getWidth());
     ASSERT_EQ(mDisplayHeight, adapter.getHeight());
-    ASSERT_EQ(nullptr, adapter.getNextTransaction());
+    ASSERT_EQ(nullptr, adapter.getSyncTransaction());
 }
 
 TEST_F(BLASTBufferQueueTest, Update) {
@@ -358,11 +358,11 @@
     ASSERT_EQ(mDisplayHeight / 2, height);
 }
 
-TEST_F(BLASTBufferQueueTest, SetNextTransaction) {
+TEST_F(BLASTBufferQueueTest, SetSyncTransaction) {
     BLASTBufferQueueHelper adapter(mSurfaceControl, mDisplayWidth, mDisplayHeight);
-    Transaction next;
-    adapter.setNextTransaction(&next);
-    ASSERT_EQ(&next, adapter.getNextTransaction());
+    Transaction sync;
+    adapter.setSyncTransaction(&sync);
+    ASSERT_EQ(&sync, adapter.getSyncTransaction());
 }
 
 TEST_F(BLASTBufferQueueTest, DISABLED_onFrameAvailable_ApplyDesiredPresentTime) {
@@ -801,8 +801,8 @@
     sp<IGraphicBufferProducer> igbProducer;
     setUpProducer(adapter, igbProducer);
 
-    Transaction next;
-    adapter.setNextTransaction(&next);
+    Transaction sync;
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
     // queue non sync buffer, so this one should get blocked
@@ -811,7 +811,7 @@
     queueBuffer(igbProducer, r, g, b, presentTimeDelay);
 
     CallbackHelper transactionCallback;
-    next.addTransactionCompletedCallback(transactionCallback.function,
+    sync.addTransactionCompletedCallback(transactionCallback.function,
                                          transactionCallback.getContext())
             .apply();
 
@@ -841,16 +841,16 @@
 
     Transaction mainTransaction;
 
-    Transaction next;
-    adapter.setNextTransaction(&next);
+    Transaction sync;
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
 
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, r, g, b, 0);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
     // Expect 1 buffer to be released even before sending to SurfaceFlinger
     mProducerListener->waitOnNumberReleased(1);
 
@@ -881,24 +881,24 @@
 
     Transaction mainTransaction;
 
-    Transaction next;
+    Transaction sync;
     // queue a sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
 
-    // queue another buffer without setting next transaction
+    // queue another buffer without setting sync transaction
     queueBuffer(igbProducer, 0, 0, 255, 0);
 
     // queue another sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, r, g, b, 0);
     // Expect 1 buffer to be released because the non sync transaction should merge
     // with the sync
     mProducerListener->waitOnNumberReleased(1);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
     // Expect 2 buffers to be released due to merging the two syncs.
     mProducerListener->waitOnNumberReleased(2);
 
@@ -929,26 +929,26 @@
 
     Transaction mainTransaction;
 
-    Transaction next;
+    Transaction sync;
     // queue a sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
 
-    // queue a few buffers without setting next transaction
+    // queue a few buffers without setting sync transaction
     queueBuffer(igbProducer, 0, 0, 255, 0);
     queueBuffer(igbProducer, 0, 0, 255, 0);
     queueBuffer(igbProducer, 0, 0, 255, 0);
 
     // queue another sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, r, g, b, 0);
     // Expect 3 buffers to be released because the non sync transactions should merge
     // with the sync
     mProducerListener->waitOnNumberReleased(3);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
     // Expect 4 buffers to be released due to merging the two syncs.
     mProducerListener->waitOnNumberReleased(4);
 
@@ -986,14 +986,14 @@
     // Send a buffer to SF
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
-    Transaction next;
+    Transaction sync;
     // queue a sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, 0, 255, 0, 0);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
 
-    // queue a few buffers without setting next transaction
+    // queue a few buffers without setting sync transaction
     queueBuffer(igbProducer, 0, 0, 255, 0);
     queueBuffer(igbProducer, 0, 0, 255, 0);
     queueBuffer(igbProducer, 0, 0, 255, 0);
@@ -1002,13 +1002,13 @@
     mainTransaction.apply();
 
     // queue another sync transaction
-    adapter.setNextTransaction(&next);
+    adapter.setSyncTransaction(&sync);
     queueBuffer(igbProducer, r, g, b, 0);
     // Expect 2 buffers to be released because the non sync transactions should merge
     // with the sync
     mProducerListener->waitOnNumberReleased(3);
 
-    mainTransaction.merge(std::move(next));
+    mainTransaction.merge(std::move(sync));
 
     CallbackHelper transactionCallback;
     mainTransaction
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index eeea25d..4d72798 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -117,16 +117,10 @@
     }
 };
 
-Scheduler::Scheduler(const std::shared_ptr<scheduler::RefreshRateConfigs>& configs,
-                     ISchedulerCallback& callback)
-      : Scheduler(configs, callback,
-                  {.useContentDetection = sysprop::use_content_detection_for_refresh_rate(false)}) {
-}
+Scheduler::Scheduler(ICompositor& compositor, ISchedulerCallback& callback, Options options)
+      : impl::MessageQueue(compositor), mOptions(options), mSchedulerCallback(callback) {}
 
-Scheduler::Scheduler(const std::shared_ptr<scheduler::RefreshRateConfigs>& configs,
-                     ISchedulerCallback& callback, Options options)
-      : Scheduler(createVsyncSchedule(configs->supportsKernelIdleTimer()), configs, callback,
-                  createLayerHistory(), options) {
+void Scheduler::startTimers() {
     using namespace sysprop;
 
     if (const int64_t millis = set_touch_timer_ms(0); millis > 0) {
@@ -147,22 +141,6 @@
     }
 }
 
-Scheduler::Scheduler(VsyncSchedule schedule,
-                     const std::shared_ptr<scheduler::RefreshRateConfigs>& configs,
-                     ISchedulerCallback& schedulerCallback,
-                     std::unique_ptr<LayerHistory> layerHistory, Options options)
-      : mOptions(options),
-        mVsyncSchedule(std::move(schedule)),
-        mLayerHistory(std::move(layerHistory)),
-        mSchedulerCallback(schedulerCallback),
-        mPredictedVsyncTracer(
-                base::GetBoolProperty("debug.sf.show_predicted_vsync", false)
-                        ? std::make_unique<PredictedVsyncTracer>(*mVsyncSchedule.dispatch)
-                        : nullptr) {
-    setRefreshRateConfigs(configs);
-    mSchedulerCallback.setVsyncEnabled(false);
-}
-
 Scheduler::~Scheduler() {
     // Ensure the OneShotTimer threads are joined before we start destroying state.
     mDisplayPowerTimer.reset();
@@ -170,7 +148,13 @@
     mRefreshRateConfigs.reset();
 }
 
-Scheduler::VsyncSchedule Scheduler::createVsyncSchedule(bool supportKernelTimer) {
+void Scheduler::run() {
+    while (true) {
+        waitMessage();
+    }
+}
+
+void Scheduler::createVsyncSchedule(bool supportKernelTimer) {
     auto clock = std::make_unique<scheduler::SystemClock>();
     auto tracker = createVSyncTracker();
     auto dispatch = createVSyncDispatch(*tracker);
@@ -180,11 +164,11 @@
     auto controller =
             std::make_unique<scheduler::VSyncReactor>(std::move(clock), *tracker, pendingFenceLimit,
                                                       supportKernelTimer);
-    return {std::move(controller), std::move(tracker), std::move(dispatch)};
-}
+    mVsyncSchedule = {std::move(controller), std::move(tracker), std::move(dispatch)};
 
-std::unique_ptr<LayerHistory> Scheduler::createLayerHistory() {
-    return std::make_unique<scheduler::LayerHistory>();
+    if (base::GetBoolProperty("debug.sf.show_predicted_vsync", false)) {
+        mPredictedVsyncTracer = std::make_unique<PredictedVsyncTracer>(*mVsyncSchedule.dispatch);
+    }
 }
 
 std::unique_ptr<VSyncSource> Scheduler::makePrimaryDispSyncSource(
@@ -594,11 +578,11 @@
     // If the content detection feature is off, we still keep the layer history,
     // since we use it for other features (like Frame Rate API), so layers
     // still need to be registered.
-    mLayerHistory->registerLayer(layer, voteType);
+    mLayerHistory.registerLayer(layer, voteType);
 }
 
 void Scheduler::deregisterLayer(Layer* layer) {
-    mLayerHistory->deregisterLayer(layer);
+    mLayerHistory.deregisterLayer(layer);
 }
 
 void Scheduler::recordLayerHistory(Layer* layer, nsecs_t presentTime,
@@ -608,11 +592,11 @@
         if (!mRefreshRateConfigs->canSwitch()) return;
     }
 
-    mLayerHistory->record(layer, presentTime, systemTime(), updateType);
+    mLayerHistory.record(layer, presentTime, systemTime(), updateType);
 }
 
 void Scheduler::setModeChangePending(bool pending) {
-    mLayerHistory->setModeChangePending(pending);
+    mLayerHistory.setModeChangePending(pending);
 }
 
 void Scheduler::chooseRefreshRateForContent() {
@@ -625,7 +609,7 @@
 
     const auto refreshRateConfigs = holdRefreshRateConfigs();
     scheduler::LayerHistory::Summary summary =
-            mLayerHistory->summarize(*refreshRateConfigs, systemTime());
+            mLayerHistory.summarize(*refreshRateConfigs, systemTime());
     scheduler::RefreshRateConfigs::GlobalSignals consideredSignals;
     DisplayModePtr newMode;
     bool frameRateChanged;
@@ -686,7 +670,7 @@
 
     // Display Power event will boost the refresh rate to performance.
     // Clear Layer History to get fresh FPS detection
-    mLayerHistory->clear();
+    mLayerHistory.clear();
 }
 
 void Scheduler::kernelIdleTimerCallback(TimerState state) {
@@ -730,7 +714,7 @@
     // NOTE: Instead of checking all the layers, we should be checking the layer
     // that is currently on top. b/142507166 will give us this capability.
     if (handleTimerStateChanged(&mFeatures.touch, touch)) {
-        mLayerHistory->clear();
+        mLayerHistory.clear();
     }
     ATRACE_INT("TouchState", static_cast<int>(touch));
 }
@@ -747,7 +731,7 @@
                   mTouchTimer ? mTouchTimer->dump().c_str() : "off");
     StringAppendF(&result, "+  Content detection: %s %s\n\n",
                   toContentDetectionString(mOptions.useContentDetection),
-                  mLayerHistory ? mLayerHistory->dump().c_str() : "(no layer history)");
+                  mLayerHistory.dump().c_str());
 
     {
         std::lock_guard lock(mFrameRateOverridesLock);
@@ -911,7 +895,7 @@
 }
 
 void Scheduler::onActiveDisplayAreaChanged(uint32_t displayArea) {
-    mLayerHistory->setDisplayArea(displayArea);
+    mLayerHistory.setDisplayArea(displayArea);
 }
 
 void Scheduler::setPreferredRefreshRateForUid(FrameRateOverride frameRateOverride) {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 8397738..6d45b5d 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -18,6 +18,7 @@
 
 #include <atomic>
 #include <functional>
+#include <future>
 #include <memory>
 #include <mutex>
 #include <optional>
@@ -32,6 +33,7 @@
 
 #include "EventThread.h"
 #include "LayerHistory.h"
+#include "MessageQueue.h"
 #include "OneShotTimer.h"
 #include "RefreshRateConfigs.h"
 #include "SchedulerUtils.h"
@@ -70,14 +72,42 @@
     ~ISchedulerCallback() = default;
 };
 
-class Scheduler {
+class Scheduler : impl::MessageQueue {
+    using Impl = impl::MessageQueue;
+
 public:
     using RefreshRate = scheduler::RefreshRateConfigs::RefreshRate;
     using ModeEvent = scheduler::RefreshRateConfigEvent;
 
-    Scheduler(const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&);
+    struct Options {
+        // Whether to use content detection at all.
+        bool useContentDetection;
+    };
+
+    Scheduler(ICompositor&, ISchedulerCallback&, Options);
     ~Scheduler();
 
+    void createVsyncSchedule(bool supportKernelIdleTimer);
+    void startTimers();
+    void run();
+
+    using Impl::initVsync;
+    using Impl::setInjector;
+
+    using Impl::getScheduledFrameTime;
+    using Impl::setDuration;
+
+    using Impl::scheduleCommit;
+    using Impl::scheduleComposite;
+
+    // Schedule an asynchronous or synchronous task on the main thread.
+    template <typename F, typename T = std::invoke_result_t<F>>
+    [[nodiscard]] std::future<T> schedule(F&& f) {
+        auto [task, future] = makeTask(std::move(f));
+        postMessage(std::move(task));
+        return std::move(future);
+    }
+
     using ConnectionHandle = scheduler::ConnectionHandle;
     ConnectionHandle createConnection(const char* connectionName, frametimeline::TokenManager*,
                                       std::chrono::nanoseconds workDuration,
@@ -213,27 +243,12 @@
     enum class TimerState { Reset, Expired };
     enum class TouchState { Inactive, Active };
 
-    struct Options {
-        // Whether to use content detection at all.
-        bool useContentDetection;
-    };
-
     struct VsyncSchedule {
         std::unique_ptr<scheduler::VsyncController> controller;
         std::unique_ptr<scheduler::VSyncTracker> tracker;
         std::unique_ptr<scheduler::VSyncDispatch> dispatch;
     };
 
-    // Unlike the testing constructor, this creates the VsyncSchedule, LayerHistory, and timers.
-    Scheduler(const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&, Options);
-
-    // Used by tests to inject mocks.
-    Scheduler(VsyncSchedule, const std::shared_ptr<scheduler::RefreshRateConfigs>&,
-              ISchedulerCallback&, std::unique_ptr<LayerHistory>, Options);
-
-    static VsyncSchedule createVsyncSchedule(bool supportKernelIdleTimer);
-    static std::unique_ptr<LayerHistory> createLayerHistory();
-
     // Create a connection on the given EventThread.
     ConnectionHandle createConnection(std::unique_ptr<EventThread>);
     sp<EventThreadConnection> createConnectionInternal(
@@ -297,7 +312,7 @@
     VsyncSchedule mVsyncSchedule;
 
     // Used to choose refresh rate if content detection is enabled.
-    std::unique_ptr<LayerHistory> mLayerHistory;
+    LayerHistory mLayerHistory;
 
     // Timer used to monitor touch events.
     std::optional<scheduler::OneShotTimer> mTouchTimer;
@@ -338,7 +353,7 @@
             GUARDED_BY(mVsyncTimelineLock);
     static constexpr std::chrono::nanoseconds MAX_VSYNC_APPLIED_TIME = 200ms;
 
-    const std::unique_ptr<PredictedVsyncTracer> mPredictedVsyncTracer;
+    std::unique_ptr<PredictedVsyncTracer> mPredictedVsyncTracer;
 
     // The frame rate override lists need their own mutex as they are being read
     // by SurfaceFlinger, Scheduler and EventThread (as a callback) to prevent deadlocks
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9ee4885..93f8406 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -125,7 +125,6 @@
 #include "Scheduler/DispSyncSource.h"
 #include "Scheduler/EventThread.h"
 #include "Scheduler/LayerHistory.h"
-#include "Scheduler/MessageQueue.h"
 #include "Scheduler/Scheduler.h"
 #include "Scheduler/VsyncConfiguration.h"
 #include "Scheduler/VsyncController.h"
@@ -362,7 +361,6 @@
         mTimeStats(std::make_shared<impl::TimeStats>()),
         mFrameTracer(mFactory.createFrameTracer()),
         mFrameTimeline(mFactory.createFrameTimeline(mTimeStats, getpid())),
-        mEventQueue(mFactory.createMessageQueue(*this)),
         mCompositionEngine(mFactory.createCompositionEngine()),
         mHwcServiceName(base::GetProperty("debug.sf.hwc_service_name"s, "default"s)),
         mTunnelModeEnabledReporter(new TunnelModeEnabledReporter()),
@@ -509,8 +507,8 @@
     // the window manager died on us. prepare its eulogy.
     mBootFinished = false;
 
-    // Sever the link to inputflinger since its gone as well.
-    static_cast<void>(schedule([=] { mInputFlinger = nullptr; }));
+    // Sever the link to inputflinger since it's gone as well.
+    static_cast<void>(mScheduler->schedule([=] { mInputFlinger = nullptr; }));
 
     // restore initial conditions (default device unblank, etc)
     initializeDisplays();
@@ -520,16 +518,7 @@
 }
 
 void SurfaceFlinger::run() {
-    while (true) {
-        mEventQueue->waitMessage();
-    }
-}
-
-template <typename F, typename T>
-inline std::future<T> SurfaceFlinger::schedule(F&& f) {
-    auto [task, future] = makeTask(std::move(f));
-    mEventQueue->postMessage(std::move(task));
-    return std::move(future);
+    mScheduler->run();
 }
 
 sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() {
@@ -730,7 +719,7 @@
 
     sp<IBinder> input(defaultServiceManager()->getService(String16("inputflinger")));
 
-    static_cast<void>(schedule([=] {
+    static_cast<void>(mScheduler->schedule([=] {
         if (input == nullptr) {
             ALOGE("Failed to link to input service");
         } else {
@@ -771,7 +760,7 @@
     if (std::this_thread::get_id() == mMainThreadId) {
         return genTextures();
     } else {
-        return schedule(genTextures).get();
+        return mScheduler->schedule(genTextures).get();
     }
 }
 
@@ -1120,7 +1109,7 @@
         return BAD_VALUE;
     }
 
-    auto future = schedule([=]() -> status_t {
+    auto future = mScheduler->schedule([=]() -> status_t {
         const auto display = ON_MAIN_THREAD(getDisplayDeviceLocked(displayToken));
         if (!display) {
             ALOGE("Attempt to set allowed display modes for invalid display token %p",
@@ -1284,7 +1273,7 @@
 }
 
 void SurfaceFlinger::disableExpensiveRendering() {
-    schedule([=]() MAIN_THREAD {
+    auto future = mScheduler->schedule([=]() MAIN_THREAD {
         ATRACE_CALL();
         if (mPowerAdvisor.isUsingExpensiveRendering()) {
             const auto& displays = ON_MAIN_THREAD(mDisplays);
@@ -1293,7 +1282,9 @@
                 mPowerAdvisor.setExpensiveRenderingExpected(display->getId(), kDisable);
             }
         }
-    }).wait();
+    });
+
+    future.wait();
 }
 
 std::vector<ColorMode> SurfaceFlinger::getDisplayColorModes(const DisplayDevice& display) {
@@ -1332,7 +1323,7 @@
         return BAD_VALUE;
     }
 
-    auto future = schedule([=]() MAIN_THREAD -> status_t {
+    auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
         const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set active color mode %s (%d) for invalid display token %p",
@@ -1367,22 +1358,24 @@
 }
 
 void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool on) {
-    static_cast<void>(schedule([=]() MAIN_THREAD {
+    const char* const whence = __func__;
+    static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
         if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
             getHwComposer().setAutoLowLatencyMode(*displayId, on);
         } else {
-            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+            ALOGE("%s: Invalid display token %p", whence, displayToken.get());
         }
     }));
 }
 
 void SurfaceFlinger::setGameContentType(const sp<IBinder>& displayToken, bool on) {
-    static_cast<void>(schedule([=]() MAIN_THREAD {
+    const char* const whence = __func__;
+    static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
         if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
             const auto type = on ? hal::ContentType::GAME : hal::ContentType::NONE;
             getHwComposer().setContentType(*displayId, type);
         } else {
-            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+            ALOGE("%s: Invalid display token %p", whence, displayToken.get());
         }
     }));
 }
@@ -1441,17 +1434,18 @@
 status_t SurfaceFlinger::setDisplayContentSamplingEnabled(const sp<IBinder>& displayToken,
                                                           bool enable, uint8_t componentMask,
                                                           uint64_t maxFrames) {
-    return schedule([=]() MAIN_THREAD -> status_t {
-               if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
-                   return getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
-                                                                           componentMask,
-                                                                           maxFrames);
-               } else {
-                   ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
-                   return NAME_NOT_FOUND;
-               }
-           })
-            .get();
+    const char* const whence = __func__;
+    auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
+        if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+            return getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
+                                                                    componentMask, maxFrames);
+        } else {
+            ALOGE("%s: Invalid display token %p", whence, displayToken.get());
+            return NAME_NOT_FOUND;
+        }
+    });
+
+    return future.get();
 }
 
 status_t SurfaceFlinger::getDisplayedContentSample(const sp<IBinder>& displayToken,
@@ -1493,14 +1487,15 @@
 }
 
 status_t SurfaceFlinger::enableVSyncInjections(bool enable) {
-    schedule([=] {
+    auto future = mScheduler->schedule([=] {
         Mutex::Autolock lock(mStateLock);
 
         if (const auto handle = mScheduler->enableVSyncInjection(enable)) {
-            mEventQueue->setInjector(enable ? mScheduler->getEventConnection(handle) : nullptr);
+            mScheduler->setInjector(enable ? mScheduler->getEventConnection(handle) : nullptr);
         }
-    }).wait();
+    });
 
+    future.wait();
     return NO_ERROR;
 }
 
@@ -1516,12 +1511,14 @@
 
 status_t SurfaceFlinger::getLayerDebugInfo(std::vector<LayerDebugInfo>* outLayers) {
     outLayers->clear();
-    schedule([=] {
+    auto future = mScheduler->schedule([=] {
         const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
         mDrawingState.traverseInZOrder([&](Layer* layer) {
             outLayers->push_back(layer->getLayerDebugInfo(display.get()));
         });
-    }).wait();
+    });
+
+    future.wait();
     return NO_ERROR;
 }
 
@@ -1616,7 +1613,8 @@
         return BAD_VALUE;
     }
 
-    return ftl::chain(schedule([=]() MAIN_THREAD {
+    const char* const whence = __func__;
+    return ftl::chain(mScheduler->schedule([=]() MAIN_THREAD {
                if (const auto display = getDisplayDeviceLocked(displayToken)) {
                    if (enableSdrDimming) {
                        display->getCompositionDisplay()
@@ -1626,7 +1624,7 @@
                    return getHwComposer().setDisplayBrightness(display->getPhysicalId(),
                                                                brightness.displayBrightness);
                } else {
-                   ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+                   ALOGE("%s: Invalid display token %p", whence, displayToken.get());
                    return ftl::yield<status_t>(NAME_NOT_FOUND);
                }
            }))
@@ -1704,7 +1702,7 @@
         mScheduler->resetIdleTimer();
     }
     mPowerAdvisor.notifyDisplayUpdateImminent();
-    mEventQueue->scheduleCommit();
+    mScheduler->scheduleCommit();
 }
 
 void SurfaceFlinger::scheduleComposite(FrameHint hint) {
@@ -1718,7 +1716,7 @@
 }
 
 void SurfaceFlinger::scheduleSample() {
-    static_cast<void>(schedule([this] { sample(); }));
+    static_cast<void>(mScheduler->schedule([this] { sample(); }));
 }
 
 nsecs_t SurfaceFlinger::getVsyncPeriodFromHWC() const {
@@ -1813,7 +1811,7 @@
     ATRACE_CALL();
 
     // On main thread to avoid race conditions with display power state.
-    static_cast<void>(schedule([=]() MAIN_THREAD {
+    static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
         mHWCVsyncPendingState = enabled ? hal::Vsync::ENABLE : hal::Vsync::DISABLE;
 
         if (const auto display = getDefaultDisplayDeviceLocked();
@@ -1930,7 +1928,7 @@
     // fired yet just wait for the next commit.
     if (mSetActiveModePending) {
         if (framePending) {
-            mEventQueue->scheduleCommit();
+            mScheduler->scheduleCommit();
             return false;
         }
 
@@ -2058,7 +2056,7 @@
     const auto hwcMinWorkDuration = mVsyncConfiguration->getCurrentConfigs().hwcMinWorkDuration;
     refreshArgs.earliestPresentTime = prevVsyncTime - hwcMinWorkDuration;
     refreshArgs.previousPresentFence = mPreviousPresentFences[0].fenceTime;
-    refreshArgs.scheduledFrameTime = mEventQueue->getScheduledFrameTime();
+    refreshArgs.scheduledFrameTime = mScheduler->getScheduledFrameTime();
 
     // Store the present time just before calling to the composition engine so we could notify
     // the scheduler.
@@ -2785,7 +2783,7 @@
     mDisplays.erase(displayToken);
 
     if (display && display->isVirtual()) {
-        static_cast<void>(schedule([display = std::move(display)] {
+        static_cast<void>(mScheduler->schedule([display = std::move(display)] {
             // Destroy the display without holding the mStateLock.
             // This is a temporary solution until we can manage transaction queues without
             // holding the mStateLock.
@@ -3028,7 +3026,9 @@
 void SurfaceFlinger::notifyWindowInfos() {
     std::vector<WindowInfo> windowInfos;
     std::vector<DisplayInfo> displayInfos;
-    std::unordered_map<uint32_t /*layerStackId*/, const ui::Transform> displayTransforms;
+    std::unordered_map<uint32_t /*layerStackId*/,
+                       std::pair<bool /* isSecure */, const ui::Transform>>
+            inputDisplayDetails;
 
     for (const auto& [_, display] : ON_MAIN_THREAD(mDisplays)) {
         if (!display->receivesInput()) {
@@ -3036,7 +3036,8 @@
         }
         const uint32_t layerStackId = display->getLayerStack().id;
         const auto& [info, transform] = display->getInputInfo();
-        const auto& [it, emplaced] = displayTransforms.try_emplace(layerStackId, transform);
+        const auto& [it, emplaced] =
+                inputDisplayDetails.try_emplace(layerStackId, display->isSecure(), transform);
         if (!emplaced) {
             ALOGE("Multiple displays claim to accept input for the same layer stack: %u",
                   layerStackId);
@@ -3048,19 +3049,21 @@
     mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
         if (!layer->needsInputInfo()) return;
 
-        const DisplayDevice* display = ON_MAIN_THREAD(getDisplayWithInputByLayer(layer)).get();
+        bool isSecure = true;
         ui::Transform displayTransform = ui::Transform();
 
-        if (display != nullptr) {
-            // When calculating the screen bounds we ignore the transparent region since it may
-            // result in an unwanted offset.
-            const auto it = displayTransforms.find(display->getLayerStack().id);
-            if (it != displayTransforms.end()) {
-                displayTransform = it->second;
-            }
+        const uint32_t layerStackId = layer->getLayerStack().id;
+        const auto it = inputDisplayDetails.find(layerStackId);
+        if (it != inputDisplayDetails.end()) {
+            const auto& [secure, transform] = it->second;
+            isSecure = secure;
+            displayTransform = transform;
+        } else {
+            ALOGE("No input-enabled display found for layer `%s` on layer stack id: %d",
+                  layer->getDebugName(), layerStackId);
         }
-        const bool displayIsSecure = !display || display->isSecure();
-        windowInfos.push_back(layer->fillInputInfo(displayTransform, displayIsSecure));
+
+        windowInfos.push_back(layer->fillInputInfo(displayTransform, isSecure));
     });
     mWindowInfosListenerInvoker->windowInfosChanged(windowInfos, displayInfos,
                                                     mInputWindowCommands.syncInputWindows);
@@ -3125,8 +3128,20 @@
     mVsyncConfiguration = getFactory().createVsyncConfiguration(currRefreshRate);
     mVsyncModulator = sp<VsyncModulator>::make(mVsyncConfiguration->getCurrentConfigs());
 
-    // start the EventThread
-    mScheduler = getFactory().createScheduler(display->holdRefreshRateConfigs(), *this);
+    const Scheduler::Options options = {
+            .useContentDetection = sysprop::use_content_detection_for_refresh_rate(false)};
+
+    mScheduler = std::make_unique<Scheduler>(static_cast<ICompositor&>(*this),
+                                             static_cast<ISchedulerCallback&>(*this), options);
+    {
+        auto configs = display->holdRefreshRateConfigs();
+        mScheduler->createVsyncSchedule(configs->supportsKernelIdleTimer());
+        mScheduler->setRefreshRateConfigs(std::move(configs));
+    }
+
+    setVsyncEnabled(false);
+    mScheduler->startTimers();
+
     const auto configs = mVsyncConfiguration->getCurrentConfigs();
     const nsecs_t vsyncPeriod = currRefreshRate.getPeriodNsecs();
     mAppConnectionHandle =
@@ -3142,8 +3157,8 @@
                                              mInterceptor->saveVSyncEvent(timestamp);
                                          });
 
-    mEventQueue->initVsync(mScheduler->getVsyncDispatch(), *mFrameTimeline->getTokenManager(),
-                           configs.late.sfWorkDuration);
+    mScheduler->initVsync(mScheduler->getVsyncDispatch(), *mFrameTimeline->getTokenManager(),
+                          configs.late.sfWorkDuration);
 
     mRegionSamplingThread =
             new RegionSamplingThread(*this, RegionSamplingThread::EnvironmentTimingTunables());
@@ -3177,7 +3192,7 @@
     mScheduler->setDuration(mSfConnectionHandle,
                             /*workDuration=*/std::chrono::nanoseconds(vsyncPeriod),
                             /*readyDuration=*/config.sfWorkDuration);
-    mEventQueue->setDuration(config.sfWorkDuration);
+    mScheduler->setDuration(config.sfWorkDuration);
 }
 
 void SurfaceFlinger::doCommitTransactions() {
@@ -3542,10 +3557,13 @@
 bool SurfaceFlinger::checkTransactionCanLatchUnsignaled(const TransactionState& transaction) {
     if (transaction.states.size() == 1) {
         const auto& state = transaction.states.begin()->state;
-        return (state.flags & ~layer_state_t::eBufferChanged) == 0 &&
-                state.bufferData.flags.test(BufferData::BufferDataChange::fenceChanged) &&
-                state.bufferData.acquireFence &&
-                state.bufferData.acquireFence->getStatus() == Fence::Status::Unsignaled;
+        if ((state.flags & ~layer_state_t::eBufferChanged) == 0 &&
+            state.bufferData.flags.test(BufferData::BufferDataChange::fenceChanged) &&
+            state.bufferData.acquireFence &&
+            state.bufferData.acquireFence->getStatus() == Fence::Status::Unsignaled) {
+            ATRACE_NAME("transactionCanLatchUnsignaled");
+            return true;
+        }
     }
     return false;
 }
@@ -4448,26 +4466,7 @@
 
 void SurfaceFlinger::initializeDisplays() {
     // Async since we may be called from the main thread.
-    static_cast<void>(schedule([this]() MAIN_THREAD { onInitializeDisplays(); }));
-}
-
-sp<DisplayDevice> SurfaceFlinger::getDisplayWithInputByLayer(Layer* layer) const {
-    const auto filter = layer->getOutputFilter();
-    sp<DisplayDevice> inputDisplay;
-
-    for (const auto& [_, display] : mDisplays) {
-        if (!display->receivesInput() || !display->getCompositionDisplay()->includesLayer(filter)) {
-            continue;
-        }
-        // Don't return immediately so that we can log duplicates.
-        if (inputDisplay) {
-            ALOGE("Multiple displays claim to accept input for the same layer stack: %u",
-                  filter.layerStack.id);
-            continue;
-        }
-        inputDisplay = display;
-    }
-    return inputDisplay;
+    static_cast<void>(mScheduler->schedule([this]() MAIN_THREAD { onInitializeDisplays(); }));
 }
 
 void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
@@ -4567,7 +4566,7 @@
 }
 
 void SurfaceFlinger::setPowerMode(const sp<IBinder>& displayToken, int mode) {
-    schedule([=]() MAIN_THREAD {
+    auto future = mScheduler->schedule([=]() MAIN_THREAD {
         const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set power mode %d for invalid display token %p", mode,
@@ -4577,7 +4576,9 @@
         } else {
             setPowerModeInternal(display, static_cast<hal::PowerMode>(mode));
         }
-    }).wait();
+    });
+
+    future.wait();
 }
 
 status_t SurfaceFlinger::doDump(int fd, const DumpArgs& args, bool asProto) {
@@ -4899,21 +4900,21 @@
 }
 
 LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
-    return schedule([=] { return dumpDrawingStateProto(traceFlags); }).get();
+    return mScheduler->schedule([=] { return dumpDrawingStateProto(traceFlags); }).get();
 }
 
 void SurfaceFlinger::dumpOffscreenLayers(std::string& result) {
+    auto future = mScheduler->schedule([this] {
+        std::string result;
+        for (Layer* offscreenLayer : mOffscreenLayers) {
+            offscreenLayer->traverse(LayerVector::StateSet::Drawing,
+                                     [&](Layer* layer) { layer->dumpCallingUidPid(result); });
+        }
+        return result;
+    });
+
     result.append("Offscreen Layers:\n");
-    result.append(schedule([this] {
-                      std::string result;
-                      for (Layer* offscreenLayer : mOffscreenLayers) {
-                          offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                                   [&](Layer* layer) {
-                                                       layer->dumpCallingUidPid(result);
-                                                   });
-                      }
-                      return result;
-                  }).get());
+    result.append(future.get());
 }
 
 void SurfaceFlinger::dumpAllLocked(const DumpArgs& args, std::string& result) const {
@@ -5332,7 +5333,7 @@
                 return NO_ERROR;
             }
             case 1006: // Force composite immediately.
-                mEventQueue->scheduleComposite();
+                mScheduler->scheduleComposite();
                 return NO_ERROR;
             case 1007: // Unused.
                 return NAME_NOT_FOUND;
@@ -5444,7 +5445,8 @@
             }
             case 1021: { // Disable HWC virtual displays
                 const bool enable = data.readInt32() != 0;
-                static_cast<void>(schedule([this, enable] { enableHalVirtualDisplays(enable); }));
+                static_cast<void>(
+                        mScheduler->schedule([this, enable] { enableHalVirtualDisplays(enable); }));
                 return NO_ERROR;
             }
             case 1022: { // Set saturation boost
@@ -5475,7 +5477,8 @@
                     ALOGD("LayerTracing enabled");
                     tracingEnabledChanged = mLayerTracing.enable();
                     if (tracingEnabledChanged) {
-                        schedule([&]() MAIN_THREAD { mLayerTracing.notify("start"); }).wait();
+                        mScheduler->schedule([&]() MAIN_THREAD { mLayerTracing.notify("start"); })
+                                .wait();
                     }
                 } else {
                     ALOGD("LayerTracing disabled");
@@ -5577,7 +5580,7 @@
                 return NO_ERROR;
             }
             case 1034: {
-                schedule([&] {
+                auto future = mScheduler->schedule([&] {
                     switch (n = data.readInt32()) {
                         case 0:
                         case 1:
@@ -5587,7 +5590,9 @@
                             reply->writeBool(ON_MAIN_THREAD(isRefreshRateOverlayEnabled()));
                         }
                     }
-                }).get();
+                });
+
+                future.wait();
                 return NO_ERROR;
             }
             case 1035: {
@@ -5617,32 +5622,36 @@
             // rates.
             case 1036: {
                 if (data.readInt32() > 0) { // turn on
-                    return schedule([this] {
-                               const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+                    return mScheduler
+                            ->schedule([this] {
+                                const auto display =
+                                        ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
 
-                               // This is a little racy, but not in a way that hurts anything. As we
-                               // grab the defaultMode from the display manager policy, we could be
-                               // setting a new display manager policy, leaving us using a stale
-                               // defaultMode. The defaultMode doesn't matter for the override
-                               // policy though, since we set allowGroupSwitching to true, so it's
-                               // not a problem.
-                               scheduler::RefreshRateConfigs::Policy overridePolicy;
-                               overridePolicy.defaultMode = display->refreshRateConfigs()
-                                                                    .getDisplayManagerPolicy()
-                                                                    .defaultMode;
-                               overridePolicy.allowGroupSwitching = true;
-                               constexpr bool kOverridePolicy = true;
-                               return setDesiredDisplayModeSpecsInternal(display, overridePolicy,
-                                                                         kOverridePolicy);
-                           })
+                                // This is a little racy, but not in a way that hurts anything. As
+                                // we grab the defaultMode from the display manager policy, we could
+                                // be setting a new display manager policy, leaving us using a stale
+                                // defaultMode. The defaultMode doesn't matter for the override
+                                // policy though, since we set allowGroupSwitching to true, so it's
+                                // not a problem.
+                                scheduler::RefreshRateConfigs::Policy overridePolicy;
+                                overridePolicy.defaultMode = display->refreshRateConfigs()
+                                                                     .getDisplayManagerPolicy()
+                                                                     .defaultMode;
+                                overridePolicy.allowGroupSwitching = true;
+                                constexpr bool kOverridePolicy = true;
+                                return setDesiredDisplayModeSpecsInternal(display, overridePolicy,
+                                                                          kOverridePolicy);
+                            })
                             .get();
                 } else { // turn off
-                    return schedule([this] {
-                               const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
-                               constexpr bool kOverridePolicy = true;
-                               return setDesiredDisplayModeSpecsInternal(display, {},
-                                                                         kOverridePolicy);
-                           })
+                    return mScheduler
+                            ->schedule([this] {
+                                const auto display =
+                                        ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+                                constexpr bool kOverridePolicy = true;
+                                return setDesiredDisplayModeSpecsInternal(display, {},
+                                                                          kOverridePolicy);
+                            })
                             .get();
                 }
             }
@@ -5687,31 +5696,29 @@
             // Second argument is an optional uint64 - if present, then limits enabling/disabling
             // caching to a particular physical display
             case 1040: {
-                status_t error =
-                        schedule([&] {
-                            n = data.readInt32();
-                            std::optional<PhysicalDisplayId> inputId = std::nullopt;
-                            if (uint64_t inputDisplayId;
-                                data.readUint64(&inputDisplayId) == NO_ERROR) {
-                                inputId = DisplayId::fromValue<PhysicalDisplayId>(inputDisplayId);
-                                if (!inputId || getPhysicalDisplayToken(*inputId)) {
-                                    ALOGE("No display with id: %" PRIu64, inputDisplayId);
-                                    return NAME_NOT_FOUND;
-                                }
+                auto future = mScheduler->schedule([&] {
+                    n = data.readInt32();
+                    std::optional<PhysicalDisplayId> inputId = std::nullopt;
+                    if (uint64_t inputDisplayId; data.readUint64(&inputDisplayId) == NO_ERROR) {
+                        inputId = DisplayId::fromValue<PhysicalDisplayId>(inputDisplayId);
+                        if (!inputId || getPhysicalDisplayToken(*inputId)) {
+                            ALOGE("No display with id: %" PRIu64, inputDisplayId);
+                            return NAME_NOT_FOUND;
+                        }
+                    }
+                    {
+                        Mutex::Autolock lock(mStateLock);
+                        mLayerCachingEnabled = n != 0;
+                        for (const auto& [_, display] : mDisplays) {
+                            if (!inputId || *inputId == display->getPhysicalId()) {
+                                display->enableLayerCaching(mLayerCachingEnabled);
                             }
-                            {
-                                Mutex::Autolock lock(mStateLock);
-                                mLayerCachingEnabled = n != 0;
-                                for (const auto& [_, display] : mDisplays) {
-                                    if (!inputId || *inputId == display->getPhysicalId()) {
-                                        display->enableLayerCaching(mLayerCachingEnabled);
-                                    }
-                                }
-                            }
-                            return OK;
-                        }).get();
+                        }
+                    }
+                    return OK;
+                });
 
-                if (error != OK) {
+                if (const status_t error = future.get(); error != OK) {
                     return error;
                 }
                 scheduleRepaint();
@@ -5730,7 +5737,7 @@
 
     // Update the overlay on the main thread to avoid race conditions with
     // mRefreshRateConfigs->getCurrentRefreshRate()
-    static_cast<void>(schedule([=] {
+    static_cast<void>(mScheduler->schedule([=] {
         const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
         if (!display) {
             ALOGW("%s: default display is null", __func__);
@@ -5745,7 +5752,7 @@
         const bool timerExpired = mKernelIdleTimerEnabled && expired;
 
         if (display->onKernelTimerChanged(desiredModeId, timerExpired)) {
-            mEventQueue->scheduleCommit();
+            mScheduler->scheduleCommit();
         }
     }));
 }
@@ -6137,14 +6144,15 @@
     const bool supportsProtected = getRenderEngine().supportsProtectedContent();
     bool hasProtectedLayer = false;
     if (allowProtected && supportsProtected) {
-        hasProtectedLayer = schedule([=]() {
-                                bool protectedLayerFound = false;
-                                traverseLayers([&](Layer* layer) {
-                                    protectedLayerFound = protectedLayerFound ||
-                                            (layer->isVisible() && layer->isProtected());
-                                });
-                                return protectedLayerFound;
-                            }).get();
+        auto future = mScheduler->schedule([=]() {
+            bool protectedLayerFound = false;
+            traverseLayers([&](Layer* layer) {
+                protectedLayerFound =
+                        protectedLayerFound || (layer->isVisible() && layer->isProtected());
+            });
+            return protectedLayerFound;
+        });
+        hasProtectedLayer = future.get();
     }
 
     const uint32_t usage = GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_RENDER |
@@ -6175,9 +6183,11 @@
 
     bool canCaptureBlackoutContent = hasCaptureBlackoutContentPermission();
 
-    auto scheduleResultFuture = schedule([=,
-                                          renderAreaFuture = std::move(renderAreaFuture)]() mutable
-                                         -> std::shared_future<renderengine::RenderEngineResult> {
+    auto scheduleResultFuture = mScheduler->schedule([=,
+                                                      renderAreaFuture =
+                                                              std::move(renderAreaFuture)]() mutable
+                                                     -> std::shared_future<
+                                                             renderengine::RenderEngineResult> {
         ScreenCaptureResults captureResults;
         std::unique_ptr<RenderArea> renderArea = renderAreaFuture.get();
         if (!renderArea) {
@@ -6470,7 +6480,7 @@
         return BAD_VALUE;
     }
 
-    auto future = schedule([=]() -> status_t {
+    auto future = mScheduler->schedule([=]() -> status_t {
         const auto display = ON_MAIN_THREAD(getDisplayDeviceLocked(displayToken));
         if (!display) {
             ALOGE("Attempt to set desired display modes for invalid display token %p",
@@ -6607,7 +6617,7 @@
         return BAD_VALUE;
     }
 
-    static_cast<void>(schedule([=] {
+    static_cast<void>(mScheduler->schedule([=] {
         Mutex::Autolock lock(mStateLock);
         if (authenticateSurfaceTextureLocked(surface)) {
             sp<Layer> layer = (static_cast<MonitoredProducer*>(surface.get()))->getLayer();
@@ -6799,7 +6809,7 @@
         return;
     }
 
-    mRegionSamplingThread->onCompositionComplete(mEventQueue->getScheduledFrameTime());
+    mRegionSamplingThread->onCompositionComplete(mScheduler->getScheduledFrameTime());
 }
 
 void SurfaceFlinger::onActiveDisplaySizeChanged(const sp<DisplayDevice>& activeDisplay) {
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 8897858..6093be9 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -56,7 +56,6 @@
 #include "Fps.h"
 #include "FrameTracker.h"
 #include "LayerVector.h"
-#include "Scheduler/MessageQueue.h"
 #include "Scheduler/RefreshRateConfigs.h"
 #include "Scheduler/RefreshRateStats.h"
 #include "Scheduler/Scheduler.h"
@@ -265,10 +264,6 @@
     SurfaceFlingerBE& getBE() { return mBE; }
     const SurfaceFlingerBE& getBE() const { return mBE; }
 
-    // Schedule an asynchronous or synchronous task on the main thread.
-    template <typename F, typename T = std::invoke_result_t<F>>
-    [[nodiscard]] std::future<T> schedule(F&&);
-
     // Schedule commit of transactions on the main thread ahead of the next VSYNC.
     void scheduleCommit(FrameHint);
     // As above, but also force composite regardless if transactions were committed.
@@ -887,8 +882,6 @@
     // region of all screens presenting this layer stack.
     void invalidateLayerStack(const sp<const Layer>& layer, const Region& dirty);
 
-    sp<DisplayDevice> getDisplayWithInputByLayer(Layer* layer) const REQUIRES(mStateLock);
-
     bool isDisplayActiveLocked(const sp<const DisplayDevice>& display) const REQUIRES(mStateLock) {
         return display->getDisplayToken() == mActiveDisplayToken;
     }
@@ -1206,14 +1199,9 @@
 
     TransactionCallbackInvoker mTransactionCallbackInvoker;
 
-    // these are thread safe
-    std::unique_ptr<MessageQueue> mEventQueue;
+    // Thread-safe.
     FrameTracker mAnimFrameTracker;
 
-    // protected by mDestroyedLayerLock;
-    mutable Mutex mDestroyedLayerLock;
-    Vector<Layer const *> mDestroyedLayers;
-
     // We maintain a pool of pre-generated texture names to hand out to avoid
     // layer creation needing to run on the main thread (which it would
     // otherwise need to do to access RenderEngine).
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
index 9a2f910..b81b445 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
@@ -38,7 +38,6 @@
 #include "SurfaceInterceptor.h"
 
 #include "DisplayHardware/ComposerHal.h"
-#include "Scheduler/MessageQueue.h"
 #include "Scheduler/Scheduler.h"
 #include "Scheduler/VsyncConfiguration.h"
 #include "Scheduler/VsyncController.h"
@@ -51,10 +50,6 @@
     return std::make_unique<android::impl::HWComposer>(serviceName);
 }
 
-std::unique_ptr<MessageQueue> DefaultFactory::createMessageQueue(ICompositor& compositor) {
-    return std::make_unique<android::impl::MessageQueue>(compositor);
-}
-
 std::unique_ptr<scheduler::VsyncConfiguration> DefaultFactory::createVsyncConfiguration(
         Fps currentRefreshRate) {
     if (property_get_bool("debug.sf.use_phase_offsets_as_durations", false)) {
@@ -64,12 +59,6 @@
     }
 }
 
-std::unique_ptr<Scheduler> DefaultFactory::createScheduler(
-        const std::shared_ptr<scheduler::RefreshRateConfigs>& refreshRateConfigs,
-        ISchedulerCallback& callback) {
-    return std::make_unique<Scheduler>(std::move(refreshRateConfigs), callback);
-}
-
 sp<SurfaceInterceptor> DefaultFactory::createSurfaceInterceptor() {
     return new android::impl::SurfaceInterceptor();
 }
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
index 2be09ee..501629d 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
@@ -27,11 +27,8 @@
     virtual ~DefaultFactory();
 
     std::unique_ptr<HWComposer> createHWComposer(const std::string& serviceName) override;
-    std::unique_ptr<MessageQueue> createMessageQueue(ICompositor&) override;
     std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
             Fps currentRefreshRate) override;
-    std::unique_ptr<Scheduler> createScheduler(
-            const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&) override;
     sp<SurfaceInterceptor> createSurfaceInterceptor() override;
     sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override;
     sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs&) override;
diff --git a/services/surfaceflinger/SurfaceFlingerFactory.h b/services/surfaceflinger/SurfaceFlingerFactory.h
index bca533b..e670f37 100644
--- a/services/surfaceflinger/SurfaceFlingerFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerFactory.h
@@ -77,11 +77,8 @@
 class Factory {
 public:
     virtual std::unique_ptr<HWComposer> createHWComposer(const std::string& serviceName) = 0;
-    virtual std::unique_ptr<MessageQueue> createMessageQueue(ICompositor&) = 0;
     virtual std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
             Fps currentRefreshRate) = 0;
-    virtual std::unique_ptr<Scheduler> createScheduler(
-            const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&) = 0;
     virtual sp<SurfaceInterceptor> createSurfaceInterceptor() = 0;
 
     virtual sp<StartPropertySetThread> createStartPropertySetThread(
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 1ac5680..3dc6d8b 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -107,7 +107,6 @@
         "mock/MockEventThread.cpp",
         "mock/MockFrameTimeline.cpp",
         "mock/MockFrameTracer.cpp",
-        "mock/MockMessageQueue.cpp",
         "mock/MockNativeWindowSurface.cpp",
         "mock/MockSurfaceInterceptor.cpp",
         "mock/MockTimeStats.cpp",
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index 52d8c35..0c9e6e1 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -45,7 +45,6 @@
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/DisplayHardware/MockPowerAdvisor.h"
 #include "mock/MockEventThread.h"
-#include "mock/MockMessageQueue.h"
 #include "mock/MockTimeStats.h"
 #include "mock/MockVsyncController.h"
 #include "mock/system/window/MockNativeWindow.h"
@@ -95,7 +94,6 @@
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
 
-        mFlinger.mutableEventQueue().reset(mMessageQueue);
         setupScheduler();
 
         EXPECT_CALL(*mNativeWindow, query(NATIVE_WINDOW_WIDTH, _))
@@ -145,9 +143,6 @@
         mFlinger.setupScheduler(std::move(vsyncController), std::move(vsyncTracker),
                                 std::move(eventThread), std::move(sfEventThread), kCallback,
                                 kHasMultipleConfigs);
-
-        // Layer history should be created if there are multiple configs.
-        ASSERT_TRUE(mFlinger.scheduler()->hasLayerHistory());
     }
 
     void setupForceGeometryDirty() {
@@ -186,7 +181,6 @@
     Hwc2::mock::Composer* mComposer = nullptr;
     renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
     mock::TimeStats* mTimeStats = new mock::TimeStats();
-    mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
     Hwc2::mock::PowerAdvisor mPowerAdvisor;
 
     sp<Fence> mClientTargetAcquireFence = Fence::NO_FENCE;
@@ -542,9 +536,9 @@
         ASSERT_EQ(NO_ERROR, err);
         Mock::VerifyAndClear(test->mRenderEngine);
 
-        EXPECT_CALL(*test->mMessageQueue, scheduleCommit()).Times(1);
+        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleCommit()).Times(1);
         enqueueBuffer(test, layer);
-        Mock::VerifyAndClearExpectations(test->mMessageQueue);
+        Mock::VerifyAndClearExpectations(test->mFlinger.scheduler());
 
         bool ignoredRecomputeVisibleRegions;
         layer->latchBuffer(ignoredRecomputeVisibleRegions, 0, 0);
@@ -839,16 +833,16 @@
 struct BaseLayerVariant {
     template <typename L, typename F>
     static sp<L> createLayerWithFactory(CompositionTest* test, F factory) {
-        EXPECT_CALL(*test->mMessageQueue, postMessage(_)).Times(0);
+        EXPECT_CALL(*test->mFlinger.scheduler(), postMessage(_)).Times(0);
 
         sp<L> layer = factory();
 
         // Layer should be registered with scheduler.
-        EXPECT_EQ(1, test->mFlinger.scheduler()->layerHistorySize());
+        EXPECT_EQ(1u, test->mFlinger.scheduler()->layerHistorySize());
 
         Mock::VerifyAndClear(test->mComposer);
         Mock::VerifyAndClear(test->mRenderEngine);
-        Mock::VerifyAndClearExpectations(test->mMessageQueue);
+        Mock::VerifyAndClearExpectations(test->mFlinger.scheduler());
 
         initLayerDrawingStateAndComputeBounds(test, layer);
 
@@ -889,7 +883,7 @@
 
         // Layer should be unregistered with scheduler.
         test->mFlinger.commit();
-        EXPECT_EQ(0, test->mFlinger.scheduler()->layerHistorySize());
+        EXPECT_EQ(0u, test->mFlinger.scheduler()->layerHistorySize());
     }
 };
 
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
index 6cb3052..b1f704a 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
@@ -50,7 +50,6 @@
     });
 
     injectMockScheduler();
-    mFlinger.mutableEventQueue().reset(mMessageQueue);
     mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
     mFlinger.mutableInterceptor() = mSurfaceInterceptor;
 
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
index 7746e73..de5e9df 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
@@ -47,7 +47,6 @@
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/DisplayHardware/MockPowerAdvisor.h"
 #include "mock/MockEventThread.h"
-#include "mock/MockMessageQueue.h"
 #include "mock/MockNativeWindowSurface.h"
 #include "mock/MockSchedulerCallback.h"
 #include "mock/MockSurfaceInterceptor.h"
@@ -118,7 +117,6 @@
     // to keep a reference to them for use in setting up call expectations.
     renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
     Hwc2::mock::Composer* mComposer = nullptr;
-    mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
     sp<mock::SurfaceInterceptor> mSurfaceInterceptor = new mock::SurfaceInterceptor;
 
     mock::VsyncController* mVsyncController = new mock::VsyncController;
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
index e8795fe..4993a2d 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
@@ -59,10 +59,8 @@
 
     LayerHistoryTest() { mFlinger.resetScheduler(mScheduler); }
 
-    void SetUp() override { ASSERT_TRUE(mScheduler->hasLayerHistory()); }
-
-    LayerHistory& history() { return *mScheduler->mutableLayerHistory(); }
-    const LayerHistory& history() const { return *mScheduler->mutableLayerHistory(); }
+    LayerHistory& history() { return mScheduler->mutableLayerHistory(); }
+    const LayerHistory& history() const { return mScheduler->mutableLayerHistory(); }
 
     LayerHistory::Summary summarizeLayerHistory(nsecs_t now) {
         return history().summarize(*mScheduler->refreshRateConfigs(), now);
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 599b235..e558f3b 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -68,14 +68,6 @@
             std::make_shared<scheduler::RefreshRateConfigs>(DisplayModes{mode60}, mode60->getId());
 
     mock::SchedulerCallback mSchedulerCallback;
-
-    // The scheduler should initially disable VSYNC.
-    struct ExpectDisableVsync {
-        ExpectDisableVsync(mock::SchedulerCallback& callback) {
-            EXPECT_CALL(callback, setVsyncEnabled(false)).Times(1);
-        }
-    } mExpectDisableVsync{mSchedulerCallback};
-
     TestableScheduler* mScheduler = new TestableScheduler{mConfigs, mSchedulerCallback};
 
     Scheduler::ConnectionHandle mConnectionHandle;
@@ -166,9 +158,9 @@
     sp<mock::MockLayer> layer = sp<mock::MockLayer>::make(mFlinger.flinger());
 
     // recordLayerHistory should be a noop
-    ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
+    ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
     mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
-    ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
+    ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
 
     constexpr bool kPowerStateNormal = true;
     mScheduler->setDisplayPowerState(kPowerStateNormal);
@@ -181,17 +173,17 @@
 }
 
 TEST_F(SchedulerTest, updateDisplayModes) {
-    ASSERT_EQ(static_cast<size_t>(0), mScheduler->layerHistorySize());
+    ASSERT_EQ(0u, mScheduler->layerHistorySize());
     sp<mock::MockLayer> layer = sp<mock::MockLayer>::make(mFlinger.flinger());
-    ASSERT_EQ(static_cast<size_t>(1), mScheduler->layerHistorySize());
+    ASSERT_EQ(1u, mScheduler->layerHistorySize());
 
     mScheduler->setRefreshRateConfigs(
             std::make_shared<scheduler::RefreshRateConfigs>(DisplayModes{mode60, mode120},
                                                             mode60->getId()));
 
-    ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
+    ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
     mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
-    ASSERT_EQ(static_cast<size_t>(1), mScheduler->getNumActiveLayers());
+    ASSERT_EQ(1u, mScheduler->getNumActiveLayers());
 }
 
 TEST_F(SchedulerTest, testDispatchCachedReportedMode) {
diff --git a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
index 360f9c6..115a44d 100644
--- a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
@@ -33,7 +33,6 @@
 #include "TestableSurfaceFlinger.h"
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/MockEventThread.h"
-#include "mock/MockMessageQueue.h"
 #include "mock/MockVsyncController.h"
 
 namespace android {
@@ -112,7 +111,6 @@
     void commitTransaction();
 
     TestableSurfaceFlinger mFlinger;
-    mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
 
     std::vector<sp<Layer>> mLayers;
 };
@@ -125,7 +123,6 @@
     setupScheduler();
 
     mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
-    mFlinger.mutableEventQueue().reset(mMessageQueue);
 }
 
 void SetFrameRateTest::addChild(sp<Layer> layer, sp<Layer> child) {
@@ -172,7 +169,7 @@
 namespace {
 
 TEST_P(SetFrameRateTest, SetAndGet) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -183,7 +180,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParent) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -208,7 +205,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParentAllVote) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -247,7 +244,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChild) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -272,7 +269,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildAllVote) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -311,7 +308,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildAddAfterVote) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -341,7 +338,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetChildRemoveAfterVote) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -372,7 +369,7 @@
 }
 
 TEST_P(SetFrameRateTest, SetAndGetParentNotInTree) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
@@ -454,24 +451,20 @@
     parent->setFrameRate(FRAME_RATE_VOTE1);
     commitTransaction();
 
-    mFlinger.mutableScheduler()
-            .mutableLayerHistory()
-            ->record(parent.get(), 0, 0, LayerHistory::LayerUpdateType::Buffer);
-    mFlinger.mutableScheduler()
-            .mutableLayerHistory()
-            ->record(child.get(), 0, 0, LayerHistory::LayerUpdateType::Buffer);
+    auto& history = mFlinger.mutableScheduler().mutableLayerHistory();
+    history.record(parent.get(), 0, 0, LayerHistory::LayerUpdateType::Buffer);
+    history.record(child.get(), 0, 0, LayerHistory::LayerUpdateType::Buffer);
 
-    const auto layerHistorySummary =
-            mFlinger.mutableScheduler()
-                    .mutableLayerHistory()
-                    ->summarize(*mFlinger.mutableScheduler().refreshRateConfigs(), 0);
-    ASSERT_EQ(2u, layerHistorySummary.size());
-    EXPECT_EQ(FRAME_RATE_VOTE1.rate, layerHistorySummary[0].desiredRefreshRate);
-    EXPECT_EQ(FRAME_RATE_VOTE1.rate, layerHistorySummary[1].desiredRefreshRate);
+    const auto configs = mFlinger.mutableScheduler().refreshRateConfigs();
+    const auto summary = history.summarize(*configs, 0);
+
+    ASSERT_EQ(2u, summary.size());
+    EXPECT_EQ(FRAME_RATE_VOTE1.rate, summary[0].desiredRefreshRate);
+    EXPECT_EQ(FRAME_RATE_VOTE1.rate, summary[1].desiredRefreshRate);
 }
 
 TEST_P(SetFrameRateTest, addChildForParentWithTreeVote) {
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     const auto& layerFactory = GetParam();
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index 8c30341..2236db7 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -52,7 +52,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 }
 
 TEST_F(CreateDisplayTest, createDisplaySetsCurrentStateForSecureDisplay) {
@@ -87,7 +87,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 }
 
 } // namespace
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
index 7087fb6..bcd3222 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
@@ -41,7 +41,7 @@
     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
 
     // Destroying the display commits a display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     // --------------------------------------------------------------------
     // Invocation
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
index 29ff0cd..cc979c9 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
@@ -39,7 +39,7 @@
     // Call Expectations
 
     // We expect a scheduled commit for the display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     // --------------------------------------------------------------------
     // Invocation
@@ -86,7 +86,7 @@
     // Call Expectations
 
     // We expect a scheduled commit for the display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     // --------------------------------------------------------------------
     // Invocation
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
index e1b44cf..83b150f 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
@@ -47,7 +47,7 @@
     Case::Display::setupHwcGetActiveConfigCallExpectations(this);
 
     // We expect a scheduled commit for the display transaction.
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     EXPECT_CALL(*mVSyncTracker, nextAnticipatedVSyncTimeFrom(_)).WillRepeatedly(Return(0));
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
index 6edebd4..ad696aa 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
@@ -273,7 +273,7 @@
     }
 
     static void setupRepaintEverythingCallExpectations(DisplayTransactionTest* test) {
-        EXPECT_CALL(*test->mMessageQueue, scheduleCommit()).Times(1);
+        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleCommit()).Times(1);
     }
 
     static void setupSurfaceInterceptorCallExpectations(DisplayTransactionTest* test,
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index 1d21bd4..32ec848 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -30,21 +30,30 @@
 
 namespace android {
 
-class TestableScheduler : public Scheduler {
+class TestableScheduler : public Scheduler, private ICompositor {
 public:
-    TestableScheduler(const std::shared_ptr<scheduler::RefreshRateConfigs>& refreshRateConfigs,
+    TestableScheduler(std::shared_ptr<scheduler::RefreshRateConfigs> configs,
                       ISchedulerCallback& callback)
           : TestableScheduler(std::make_unique<mock::VsyncController>(),
-                              std::make_unique<mock::VSyncTracker>(), refreshRateConfigs,
+                              std::make_unique<mock::VSyncTracker>(), std::move(configs),
                               callback) {}
 
     TestableScheduler(std::unique_ptr<scheduler::VsyncController> vsyncController,
                       std::unique_ptr<scheduler::VSyncTracker> vsyncTracker,
-                      const std::shared_ptr<scheduler::RefreshRateConfigs>& refreshRateConfigs,
+                      std::shared_ptr<scheduler::RefreshRateConfigs> configs,
                       ISchedulerCallback& callback)
-          : Scheduler({std::move(vsyncController), std::move(vsyncTracker), nullptr},
-                      refreshRateConfigs, callback, createLayerHistory(),
-                      {.useContentDetection = true}) {}
+          : Scheduler(*this, callback, {.useContentDetection = true}) {
+        mVsyncSchedule = {std::move(vsyncController), std::move(vsyncTracker), nullptr};
+        setRefreshRateConfigs(std::move(configs));
+
+        ON_CALL(*this, postMessage).WillByDefault([](sp<MessageHandler>&& handler) {
+            // Execute task to prevent broken promise exception on destruction.
+            handler->handleMessage(Message());
+        });
+    }
+
+    MOCK_METHOD(void, scheduleCommit, (), (override));
+    MOCK_METHOD(void, postMessage, (sp<MessageHandler>&&), (override));
 
     // Used to inject mock event thread.
     ConnectionHandle createConnection(std::unique_ptr<EventThread> eventThread) {
@@ -58,22 +67,13 @@
     auto& mutablePrimaryHWVsyncEnabled() { return mPrimaryHWVsyncEnabled; }
     auto& mutableHWVsyncAvailable() { return mHWVsyncAvailable; }
 
-    bool hasLayerHistory() const { return static_cast<bool>(mLayerHistory); }
+    auto& mutableLayerHistory() { return mLayerHistory; }
 
-    auto* mutableLayerHistory() { return mLayerHistory.get(); }
-
-    size_t layerHistorySize() NO_THREAD_SAFETY_ANALYSIS {
-        if (!mLayerHistory) return 0;
-        return mutableLayerHistory()->mLayerInfos.size();
-    }
+    size_t layerHistorySize() NO_THREAD_SAFETY_ANALYSIS { return mLayerHistory.mLayerInfos.size(); }
+    size_t getNumActiveLayers() NO_THREAD_SAFETY_ANALYSIS { return mLayerHistory.mActiveLayersEnd; }
 
     auto refreshRateConfigs() { return holdRefreshRateConfigs(); }
 
-    size_t getNumActiveLayers() NO_THREAD_SAFETY_ANALYSIS {
-        if (!mLayerHistory) return 0;
-        return mutableLayerHistory()->mActiveLayersEnd;
-    }
-
     void replaceTouchTimer(int64_t millis) {
         if (mTouchTimer) {
             mTouchTimer.reset();
@@ -112,6 +112,12 @@
         mVsyncSchedule.controller.reset();
         mConnections.clear();
     }
+
+private:
+    // ICompositor overrides:
+    bool commit(nsecs_t, int64_t, nsecs_t) override { return false; }
+    void composite(nsecs_t) override {}
+    void sample() override {}
 };
 
 } // namespace android
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 8cca6af..4c5789e 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -73,20 +73,11 @@
         return nullptr;
     }
 
-    std::unique_ptr<MessageQueue> createMessageQueue(ICompositor& compositor) override {
-        return std::make_unique<android::impl::MessageQueue>(compositor);
-    }
-
     std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
             Fps /*currentRefreshRate*/) override {
         return std::make_unique<scheduler::FakePhaseOffsets>();
     }
 
-    std::unique_ptr<Scheduler> createScheduler(
-            const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&) override {
-        return nullptr;
-    }
-
     sp<SurfaceInterceptor> createSurfaceInterceptor() override {
         return new android::impl::SurfaceInterceptor();
     }
@@ -431,7 +422,6 @@
     auto& mutableDisplayColorSetting() { return mFlinger->mDisplayColorSetting; }
     auto& mutableDisplays() { return mFlinger->mDisplays; }
     auto& mutableDrawingState() { return mFlinger->mDrawingState; }
-    auto& mutableEventQueue() { return mFlinger->mEventQueue; }
     auto& mutableGeometryDirty() { return mFlinger->mGeometryDirty; }
     auto& mutableInterceptor() { return mFlinger->mInterceptor; }
     auto& mutableMainThreadId() { return mFlinger->mMainThreadId; }
@@ -460,7 +450,6 @@
         mutableDisplays().clear();
         mutableCurrentState().displays.clear();
         mutableDrawingState().displays.clear();
-        mutableEventQueue().reset();
         mutableInterceptor().clear();
         mFlinger->mScheduler.reset();
         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index 8caadfb..b3a6a1b 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -29,7 +29,6 @@
 #include "TestableScheduler.h"
 #include "TestableSurfaceFlinger.h"
 #include "mock/MockEventThread.h"
-#include "mock/MockMessageQueue.h"
 #include "mock/MockVsyncController.h"
 
 namespace android {
@@ -46,7 +45,6 @@
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
 
-        mFlinger.mutableEventQueue().reset(mMessageQueue);
         setupScheduler();
     }
 
@@ -92,7 +90,6 @@
 
     std::unique_ptr<mock::EventThread> mEventThread = std::make_unique<mock::EventThread>();
 
-    mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
     mock::VsyncController* mVsyncController = new mock::VsyncController();
     mock::VSyncTracker* mVSyncTracker = new mock::VSyncTracker();
     mock::MockFence* mFenceUnsignaled = new mock::MockFence();
@@ -146,7 +143,7 @@
 
     void NotPlacedOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
-        EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
         TransactionInfo transaction;
         setupSingle(transaction, flags, syncInputWindows,
                     /*desiredPresentTime*/ systemTime(), /*isAutoTimestamp*/ true,
@@ -176,7 +173,7 @@
 
     void PlaceOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
-        EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
         // first check will see desired present time has not passed,
         // but afterwards it will look like the desired present time has passed
@@ -207,9 +204,9 @@
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
         nsecs_t time = systemTime();
         if (!syncInputWindows) {
-            EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(2);
+            EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(2);
         } else {
-            EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+            EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
         }
         // transaction that should go on the pending thread
         TransactionInfo transactionA;
@@ -454,7 +451,7 @@
 
 TEST_F(TransactionApplicationTest, Flush_RemovesFromQueue) {
     ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
-    EXPECT_CALL(*mMessageQueue, scheduleCommit()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleCommit()).Times(1);
 
     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*syncInputWindows*/ false,
diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index ade4fbb..15fea9c 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
@@ -27,7 +27,6 @@
 #include "TunnelModeEnabledReporter.h"
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/MockEventThread.h"
-#include "mock/MockMessageQueue.h"
 
 namespace android {
 
@@ -69,12 +68,12 @@
 
     TestableSurfaceFlinger mFlinger;
     Hwc2::mock::Composer* mComposer = nullptr;
-    sp<TestableTunnelModeEnabledListener> mTunnelModeEnabledListener =
-            new TestableTunnelModeEnabledListener();
-    sp<TunnelModeEnabledReporter> mTunnelModeEnabledReporter =
-            new TunnelModeEnabledReporter();
 
-    mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
+    sp<TestableTunnelModeEnabledListener> mTunnelModeEnabledListener =
+            sp<TestableTunnelModeEnabledListener>::make();
+
+    sp<TunnelModeEnabledReporter> mTunnelModeEnabledReporter =
+            sp<TunnelModeEnabledReporter>::make();
 };
 
 TunnelModeEnabledReporterTest::TunnelModeEnabledReporterTest() {
@@ -82,7 +81,6 @@
             ::testing::UnitTest::GetInstance()->current_test_info();
     ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
 
-    mFlinger.mutableEventQueue().reset(mMessageQueue);
     setupScheduler();
     mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
     mFlinger.flinger()->mTunnelModeEnabledReporter = mTunnelModeEnabledReporter;
diff --git a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp
deleted file mode 100644
index 5fb06fd..0000000
--- a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2018 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 "mock/MockMessageQueue.h"
-
-namespace android::mock {
-
-MessageQueue::MessageQueue() {
-    ON_CALL(*this, postMessage).WillByDefault([](sp<MessageHandler>&& handler) {
-        // Execute task to prevent broken promise exception on destruction.
-        handler->handleMessage(Message());
-    });
-}
-
-MessageQueue::~MessageQueue() = default;
-
-} // namespace android::mock
diff --git a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h b/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h
deleted file mode 100644
index d684337..0000000
--- a/services/surfaceflinger/tests/unittests/mock/MockMessageQueue.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <gmock/gmock.h>
-
-#include "FrameTimeline.h"
-#include "Scheduler/EventThread.h"
-#include "Scheduler/MessageQueue.h"
-
-namespace android::mock {
-
-class MessageQueue : public android::MessageQueue {
-public:
-    MessageQueue();
-    ~MessageQueue() override;
-
-    MOCK_METHOD1(setInjector, void(sp<EventThreadConnection>));
-    MOCK_METHOD0(waitMessage, void());
-    MOCK_METHOD1(postMessage, void(sp<MessageHandler>&&));
-    MOCK_METHOD3(initVsync,
-                 void(scheduler::VSyncDispatch&, frametimeline::TokenManager&,
-                      std::chrono::nanoseconds));
-    MOCK_METHOD1(setDuration, void(std::chrono::nanoseconds workDuration));
-
-    MOCK_METHOD(void, scheduleCommit, (), (override));
-    MOCK_METHOD(void, scheduleComposite, (), (override));
-
-    MOCK_METHOD(std::optional<Clock::time_point>, getScheduledFrameTime, (), (const, override));
-};
-
-} // namespace android::mock