diff --git a/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
index 2e5913b..8b9d14b 100644
--- a/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
+++ b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
@@ -472,6 +472,18 @@
         mLifecycleManager.applyTransactions(transactions);
     }
 
+    void setGameMode(uint32_t id, gui::GameMode gameMode) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
+        transactions.back().states.front().state.metadata = LayerMetadata();
+        transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE,
+                                                                   static_cast<int32_t>(gameMode));
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
 private:
     LayerLifecycleManager& mLifecycleManager;
 };
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 98face9..d9d239d 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -83,7 +83,6 @@
         "FrameRateSelectionPriorityTest.cpp",
         "FrameRateSelectionStrategyTest.cpp",
         "FrameTimelineTest.cpp",
-        "GameModeTest.cpp",
         "HWComposerTest.cpp",
         "JankTrackerTest.cpp",
         "OneShotTimerTest.cpp",
diff --git a/services/surfaceflinger/tests/unittests/GameModeTest.cpp b/services/surfaceflinger/tests/unittests/GameModeTest.cpp
deleted file mode 100644
index 1b5c6e7..0000000
--- a/services/surfaceflinger/tests/unittests/GameModeTest.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-#include <gui/SurfaceComposerClient.h>
-#include <log/log.h>
-
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-
-namespace android {
-
-using testing::_;
-using testing::Mock;
-using testing::Return;
-
-using gui::GameMode;
-using gui::LayerMetadata;
-
-class GameModeTest : public testing::Test {
-public:
-    GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-        mFlinger.setupMockScheduler();
-        setupComposer();
-    }
-
-    ~GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
-    }
-
-    sp<Layer> createLayer() {
-        sp<Client> client;
-        LayerCreationArgs args(mFlinger.flinger(), client, "layer", 0, LayerMetadata());
-        return sp<Layer>::make(args);
-    }
-
-    void setupComposer() {
-        mComposer = new Hwc2::mock::Composer();
-        mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
-
-        Mock::VerifyAndClear(mComposer);
-    }
-
-    // Mocks the behavior of applying a transaction from WMShell
-    void setGameModeMetadata(sp<Layer> layer, GameMode gameMode) {
-        mLayerMetadata.setInt32(gui::METADATA_GAME_MODE, static_cast<int32_t>(gameMode));
-        layer->setMetadata(mLayerMetadata);
-        layer->setGameModeForTree(gameMode);
-    }
-
-    TestableSurfaceFlinger mFlinger;
-    Hwc2::mock::Composer* mComposer = nullptr;
-    client_cache_t mClientCache;
-    LayerMetadata mLayerMetadata;
-};
-
-TEST_F(GameModeTest, SetGameModeSetsForAllCurrentChildren) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->addChild(childLayer1);
-    rootLayer->addChild(childLayer2);
-    rootLayer->setGameModeForTree(GameMode::Performance);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, AddChildAppliesGameModeFromParent) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, RemoveChildResetsGameMode) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Unsupported);
-}
-
-TEST_F(GameModeTest, ReparentingDoesNotOverrideMetadata) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Standard);
-    rootLayer->addChild(childLayer1);
-
-    setGameModeMetadata(childLayer2, GameMode::Performance);
-    rootLayer->addChild(childLayer2);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer2);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 06319f3..2bb864a 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -281,22 +281,40 @@
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eColorChanged);
 }
 
-TEST_F(LayerSnapshotTest, GameMode) {
-    std::vector<TransactionState> transactions;
-    transactions.emplace_back();
-    transactions.back().states.push_back({});
-    transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
-    transactions.back().states.front().state.metadata = LayerMetadata();
-    transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE, 42);
-    transactions.back().states.front().layerId = 1;
-    transactions.back().states.front().state.layerId = static_cast<int32_t>(1);
-    mLifecycleManager.applyTransactions(transactions);
+TEST_F(LayerSnapshotTest, ChildrenInheritGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
     EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
               RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
     UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(1)->gameMode), 42);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(11)->gameMode), 42);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Performance);
+}
+
+TEST_F(LayerSnapshotTest, ChildrenCanOverrideGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    setGameMode(11, gui::GameMode::Battery);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Battery);
+}
+
+TEST_F(LayerSnapshotTest, ReparentingUpdatesGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Unsupported);
+
+    reparentLayer(2, 1);
+    setZ(2, 2);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Performance);
 }
 
 TEST_F(LayerSnapshotTest, UpdateMetadata) {
diff --git a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
index 85b61f8..abfab9a 100644
--- a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
@@ -94,7 +94,7 @@
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
         layer->setBuffer(externalTexture, bufferData, postTime, /*desiredPresentTime*/ 30, false,
-                         FrameTimelineInfo{});
+                         FrameTimelineInfo{}, gui::GameMode::Unsupported);
 
         commitTransaction(layer.get());
         nsecs_t latchTime = 25;
@@ -112,7 +112,8 @@
         EXPECT_CALL(*mFlinger.getFrameTracer(),
                     traceFence(layerId, bufferId, frameNumber, presentFence,
                                FrameTracer::FrameEvent::PRESENT_FENCE, /*startTime*/ 0));
-        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming);
+        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming,
+                                      gui::GameMode::Unsupported);
     }
 };
 
diff --git a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
index 0745f87..9a68d75 100644
--- a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
@@ -72,7 +72,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_TRUE(layer->mDrawingState.bufferSurfaceFrameTX == nullptr);
         const auto surfaceFrame = layer->mDrawingState.bufferlessSurfaceFramesTX.at(/*token*/ 1);
@@ -99,7 +100,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         commitTransaction(layer.get());
@@ -134,7 +136,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -151,7 +154,8 @@
                                                          2ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         nsecs_t end = systemTime();
         acquireFence2->signalForTest(12);
 
@@ -180,7 +184,8 @@
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
 
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -197,7 +202,8 @@
                                                          1ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
@@ -232,11 +238,13 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
     }
@@ -246,7 +254,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame1 =
@@ -255,7 +264,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 4;
         ftInfo2.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame2 = layer->mDrawingState.bufferlessSurfaceFramesTX[4];
@@ -275,7 +285,8 @@
         FrameTimelineInfo ftInfo3;
         ftInfo3.vsyncId = 3;
         ftInfo3.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferSurfaceFrameTX = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -320,7 +331,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame1 = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -340,7 +352,8 @@
         FrameTimelineInfo ftInfoInv;
         ftInfoInv.vsyncId = FrameTimelineInfo::INVALID_VSYNC_ID;
         ftInfoInv.inputEventId = 0;
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv,
+                         gui::GameMode::Unsupported);
         auto dropEndTime1 = systemTime();
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -361,7 +374,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 2;
         ftInfo2.inputEventId = 0;
-        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2);
+        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2,
+                         gui::GameMode::Unsupported);
         auto dropEndTime2 = systemTime();
         acquireFence3->signalForTest(12);
 
@@ -409,11 +423,13 @@
             FrameTimelineInfo ftInfo;
             ftInfo.vsyncId = 1;
             ftInfo.inputEventId = 0;
-            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                             gui::GameMode::Unsupported);
             FrameTimelineInfo ftInfo2;
             ftInfo2.vsyncId = 2;
             ftInfo2.inputEventId = 0;
-            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                                 gui::GameMode::Unsupported);
             ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
             EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
 
diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index 1cf14ae..9f6065b 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
@@ -127,7 +127,7 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20, gui::GameMode::Unsupported);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layer);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     mTunnelModeEnabledReporter->addListener(mTunnelModeEnabledListener);
@@ -151,7 +151,8 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20,
+                                               gui::GameMode::Unsupported);
 
     mFlinger.mutableCurrentState().layersSortedByZ.add(simpleLayer);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layerWithSidebandStream);