1 files changed, 890 insertions, 0 deletions
diff --git a/gfx/tests/gtest/TestConfigManager.cpp b/gfx/tests/gtest/TestConfigManager.cpp
new file mode 100644
index 0000000000..d76dcfd234
--- /dev/null
+++ b/gfx/tests/gtest/TestConfigManager.cpp
@@ -0,0 +1,890 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "gtest/gtest.h"
+
+#include "gfxFeature.h"
+#include "mozilla/gfx/gfxConfigManager.h"
+#include "nsIGfxInfo.h"
+
+using namespace mozilla;
+using namespace mozilla::gfx;
+
+namespace mozilla {
+namespace gfx {
+
+class MockGfxInfo final : public nsIGfxInfo {
+ public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+
+  int32_t mStatusWr;
+  int32_t mStatusWrCompositor;
+  int32_t mStatusWrShaderCache;
+  int32_t mStatusWrOptimizedShaders;
+  int32_t mStatusWrPartialPresent;
+  int32_t mStatusWrScissoredCacheClears;
+  int32_t mMaxRefreshRate;
+  bool mHasMixedRefreshRate;
+  Maybe<bool> mHasBattery;
+  const char* mVendorId;
+  const char* mDeviceId;
+
+  // Default allows WebRender + compositor, and is desktop NVIDIA.
+  MockGfxInfo()
+      : mStatusWr(nsIGfxInfo::FEATURE_STATUS_OK),
+        mStatusWrCompositor(nsIGfxInfo::FEATURE_STATUS_OK),
+        mStatusWrShaderCache(nsIGfxInfo::FEATURE_STATUS_OK),
+        mStatusWrOptimizedShaders(nsIGfxInfo::FEATURE_STATUS_OK),
+        mStatusWrPartialPresent(nsIGfxInfo::FEATURE_STATUS_OK),
+        mStatusWrScissoredCacheClears(nsIGfxInfo::FEATURE_STATUS_OK),
+        mMaxRefreshRate(-1),
+        mHasMixedRefreshRate(false),
+        mHasBattery(Some(false)),
+        mVendorId("0x10de"),
+        mDeviceId("") {}
+
+  NS_IMETHOD GetFeatureStatus(int32_t aFeature, nsACString& aFailureId,
+                              int32_t* _retval) override {
+    switch (aFeature) {
+      case nsIGfxInfo::FEATURE_WEBRENDER:
+        *_retval = mStatusWr;
+        break;
+      case nsIGfxInfo::FEATURE_WEBRENDER_COMPOSITOR:
+        *_retval = mStatusWrCompositor;
+        break;
+      case nsIGfxInfo::FEATURE_WEBRENDER_SHADER_CACHE:
+        *_retval = mStatusWrShaderCache;
+        break;
+      case nsIGfxInfo::FEATURE_WEBRENDER_OPTIMIZED_SHADERS:
+        *_retval = mStatusWrOptimizedShaders;
+        break;
+      case nsIGfxInfo::FEATURE_WEBRENDER_PARTIAL_PRESENT:
+        *_retval = mStatusWrPartialPresent;
+        break;
+      case nsIGfxInfo::FEATURE_WEBRENDER_SCISSORED_CACHE_CLEARS:
+        *_retval = mStatusWrScissoredCacheClears;
+        break;
+      default:
+        return NS_ERROR_NOT_IMPLEMENTED;
+    }
+    return NS_OK;
+  }
+
+  NS_IMETHOD GetHasBattery(bool* aHasBattery) override {
+    if (mHasBattery.isNothing()) {
+      return NS_ERROR_NOT_IMPLEMENTED;
+    }
+    *aHasBattery = *mHasBattery;
+    return NS_OK;
+  }
+
+  NS_IMETHOD GetAdapterVendorID(nsAString& aAdapterVendorID) override {
+    if (!mVendorId) {
+      return NS_ERROR_NOT_IMPLEMENTED;
+    }
+    aAdapterVendorID.AssignASCII(mVendorId);
+    return NS_OK;
+  }
+
+  NS_IMETHOD GetAdapterDeviceID(nsAString& aAdapterDeviceID) override {
+    if (!mDeviceId) {
+      return NS_ERROR_NOT_IMPLEMENTED;
+    }
+    aAdapterDeviceID.AssignASCII(mDeviceId);
+    return NS_OK;
+  }
+
+  NS_IMETHOD_(int32_t) GetMaxRefreshRate(bool* aMixed) override {
+    if (aMixed) {
+      *aMixed = mHasMixedRefreshRate;
+    }
+    return mMaxRefreshRate;
+  }
+
+  NS_IMETHODIMP GetEmbeddedInFirefoxReality(
+      bool* aEmbeddedInFirefoxReality) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  NS_IMETHOD GetAzureCanvasBackend(nsAString& aBackend) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  NS_IMETHOD GetAzureContentBackend(nsAString& aBackend) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  // The following methods we don't need for testing gfxConfigManager.
+  NS_IMETHOD GetFeatureSuggestedDriverVersion(int32_t aFeature,
+                                              nsAString& _retval) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  NS_IMETHOD GetMonitors(JSContext* cx,
+                         JS::MutableHandle<JS::Value> _retval) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetFailures(nsTArray<int32_t>& indices,
+                         nsTArray<nsCString>& failures) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD_(void) LogFailure(const nsACString& failure) override {}
+  NS_IMETHOD GetInfo(JSContext*, JS::MutableHandle<JS::Value>) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetFeatures(JSContext*, JS::MutableHandle<JS::Value>) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetFeatureLog(JSContext*, JS::MutableHandle<JS::Value>) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetActiveCrashGuards(JSContext*,
+                                  JS::MutableHandle<JS::Value>) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetFontVisibilityDetermination(
+      nsIGfxInfo::FontVisibilityDeviceDetermination*
+          aFontVisibilityDetermination) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetFontVisibilityDeterminationStr(
+      nsAString& aFontVisibilityDeterminationStr) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetContentBackend(nsAString& aContentBackend) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetUsingGPUProcess(bool* aOutValue) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetIsHeadless(bool* aIsHeadless) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetTargetFrameRate(uint32_t* aTargetFrameRate) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetCodecSupportInfo(nsACString& aCodecSupportInfo) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetD2DEnabled(bool* aD2DEnabled) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetDWriteEnabled(bool* aDWriteEnabled) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetDWriteVersion(nsAString& aDwriteVersion) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetCleartypeParameters(nsAString& aCleartypeParams) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetWindowProtocol(nsAString& aWindowProtocol) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetTestType(nsAString& aTestType) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDescription(nsAString& aAdapterDescription) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriver(nsAString& aAdapterDriver) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterSubsysID(nsAString& aAdapterSubsysID) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterRAM(uint32_t* aAdapterRAM) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverVendor(nsAString& aAdapterDriverVendor) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverVersion(
+      nsAString& aAdapterDriverVersion) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverDate(nsAString& aAdapterDriverDate) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDescription2(nsAString& aAdapterDescription) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriver2(nsAString& aAdapterDriver) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterVendorID2(nsAString& aAdapterVendorID) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDeviceID2(nsAString& aAdapterDeviceID) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterSubsysID2(nsAString& aAdapterSubsysID) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterRAM2(uint32_t* aAdapterRAM) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverVendor2(nsAString& aAdapterDriverVendor) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverVersion2(
+      nsAString& aAdapterDriverVersion) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetAdapterDriverDate2(nsAString& aAdapterDriverDate) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetIsGPU2Active(bool* aIsGPU2Active) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD GetDrmRenderDevice(nsACString& aDrmRenderDevice) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD ControlGPUProcessForXPCShell(bool aEnable,
+                                          bool* _retval) override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD KillGPUProcessForTests() override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  NS_IMETHOD CrashGPUProcessForTests() override {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  NS_IMETHOD_(void) GetData() override {}
+
+ private:
+  virtual ~MockGfxInfo() = default;
+};
+
+NS_IMPL_ISUPPORTS(MockGfxInfo, nsIGfxInfo)
+
+class GfxConfigManager : public ::testing::Test, public gfxConfigManager {
+ public:
+  GfxConfigManager() {
+    mFeatureWr = &mFeatures.mWr;
+    mFeatureWrCompositor = &mFeatures.mWrCompositor;
+    mFeatureWrAngle = &mFeatures.mWrAngle;
+    mFeatureWrDComp = &mFeatures.mWrDComp;
+    mFeatureWrPartial = &mFeatures.mWrPartial;
+    mFeatureWrShaderCache = &mFeatures.mWrShaderCache;
+    mFeatureWrOptimizedShaders = &mFeatures.mWrOptimizedShaders;
+    mFeatureWrScissoredCacheClears = &mFeatures.mWrScissoredCacheClears;
+    mFeatureHwCompositing = &mFeatures.mHwCompositing;
+    mFeatureGPUProcess = &mFeatures.mGPUProcess;
+  }
+
+  void SetUp() override {
+    mMockGfxInfo = new MockGfxInfo();
+    mGfxInfo = mMockGfxInfo;
+
+    mFeatureD3D11HwAngle = &mFeatures.mD3D11HwAngle;
+    mFeatureD3D11Compositing = &mFeatures.mD3D11Compositing;
+
+    // By default, turn everything on. This effectively assumes we are on
+    // qualified nightly Windows 10 with DirectComposition support.
+    mFeatureHwCompositing->EnableByDefault();
+    mFeatureD3D11HwAngle->EnableByDefault();
+    mFeatureD3D11Compositing->EnableByDefault();
+    mFeatureGPUProcess->EnableByDefault();
+
+    mWrCompositorEnabled.emplace(true);
+    mWrPartialPresent = true;
+    mWrShaderCache.emplace(true);
+    mWrOptimizedShaders = true;
+    mWrForceAngle = true;
+    mWrDCompWinEnabled = true;
+    mWrCompositorDCompRequired = true;
+    mWrScissoredCacheClearsEnabled = true;
+    ++mHwStretchingSupport.mBoth;
+    mIsWin11OrLater = true;
+    mIsNightly = true;
+    mIsEarlyBetaOrEarlier = true;
+  }
+
+  void TearDown() override {
+    mFeatures.mWr.Reset();
+    mFeatures.mWrCompositor.Reset();
+    mFeatures.mWrAngle.Reset();
+    mFeatures.mWrDComp.Reset();
+    mFeatures.mWrPartial.Reset();
+    mFeatures.mWrShaderCache.Reset();
+    mFeatures.mWrOptimizedShaders.Reset();
+    mFeatures.mWrScissoredCacheClears.Reset();
+    mFeatures.mHwCompositing.Reset();
+    mFeatures.mD3D11HwAngle.Reset();
+    mFeatures.mD3D11Compositing.Reset();
+    mFeatures.mGPUProcess.Reset();
+  }
+
+  struct {
+    FeatureState mWr;
+    FeatureState mWrCompositor;
+    FeatureState mWrAngle;
+    FeatureState mWrDComp;
+    FeatureState mWrPartial;
+    FeatureState mWrShaderCache;
+    FeatureState mWrOptimizedShaders;
+    FeatureState mWrScissoredCacheClears;
+    FeatureState mHwCompositing;
+    FeatureState mD3D11HwAngle;
+    FeatureState mD3D11Compositing;
+    FeatureState mGPUProcess;
+  } mFeatures;
+
+  RefPtr<MockGfxInfo> mMockGfxInfo;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+TEST_F(GfxConfigManager, WebRenderDefault) {
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderDefaultRelease) {
+  mIsNightly = mIsEarlyBetaOrEarlier = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderNoPartialPresent) {
+  mWrPartialPresent = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderPartialBlocked) {
+  mWrPartialPresent = true;
+  mMockGfxInfo->mStatusWrPartialPresent = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWrPartial.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderForcePartialBlocked) {
+  mWrForcePartialPresent = true;
+  mMockGfxInfo->mStatusWrPartialPresent = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderScaledResolutionWithHwStretching) {
+  mScaledResolution = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderScaledResolutionNoHwStretching) {
+  ++mHwStretchingSupport.mNone;
+  mScaledResolution = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderEnabledWithDisableHwCompositingNoWr) {
+  mDisableHwCompositingNoWr = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderDisabledWithDisableHwCompositingNoWr) {
+  mDisableHwCompositingNoWr = true;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_FALSE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_FALSE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderDisabledWithAllowSoftwareGPUProcess) {
+  mDisableHwCompositingNoWr = true;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  mGPUProcessAllowSoftware = true;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_FALSE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderSafeMode) {
+  mSafeMode = true;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderDCompDisabled) {
+  mWrDCompWinEnabled = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderDCompNotRequired) {
+  mWrDCompWinEnabled = false;
+  mWrCompositorDCompRequired = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderForceAngleDisabled) {
+  mWrForceAngle = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderD3D11HwAngleDisabled) {
+  mFeatures.mD3D11HwAngle.UserDisable("", ""_ns);
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_FALSE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderD3D11HwAngleAndForceAngleDisabled) {
+  mWrForceAngle = false;
+  mFeatures.mD3D11HwAngle.UserDisable("", ""_ns);
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_FALSE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderGPUProcessDisabled) {
+  mFeatures.mGPUProcess.UserDisable("", ""_ns);
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_FALSE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderIntelBatteryNoHwStretchingNotNightly) {
+  mIsNightly = mIsEarlyBetaOrEarlier = false;
+  ++mHwStretchingSupport.mNone;
+  mScaledResolution = true;
+  mMockGfxInfo->mHasBattery.ref() = true;
+  mMockGfxInfo->mVendorId = "0x8086";
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderNvidiaHighMixedRefreshRateWin10) {
+  mIsWin11OrLater = false;
+  mMockGfxInfo->mMaxRefreshRate = 120;
+  mMockGfxInfo->mHasMixedRefreshRate = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderNvidiaHighMixedRefreshRateWin11) {
+  mIsWin11OrLater = true;
+  mMockGfxInfo->mMaxRefreshRate = 120;
+  mMockGfxInfo->mHasMixedRefreshRate = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderNvidiaHighRefreshRateNotNightly) {
+  mMockGfxInfo->mMaxRefreshRate = 120;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderNvidiaLowMixedRefreshRateNotNightly) {
+  mMockGfxInfo->mMaxRefreshRate = 60;
+  mMockGfxInfo->mHasMixedRefreshRate = true;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderSofwareAndNotQualified) {
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderForceEnabledEnvvar) {
+  mWrEnvForceEnabled = true;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderSoftwareAllowedForceEnabledPref) {
+  mWrForceEnabled = true;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderForceSoftwareForceEnabledEnvvar) {
+  mWrEnvForceEnabled = true;
+  mWrSoftwareForceEnabled = true;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderSoftwareReleaseWindowsGPUProcessDisabled) {
+  mIsNightly = mIsEarlyBetaOrEarlier = false;
+  mMockGfxInfo->mStatusWr = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  mFeatures.mGPUProcess.UserDisable("", ""_ns);
+  ConfigureWebRender();
+
+  EXPECT_FALSE(mFeatures.mWr.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_FALSE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderShaderCacheDisabled) {
+  mWrShaderCache = Some(false);
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderShaderCacheBlocked) {
+  mMockGfxInfo->mStatusWrShaderCache = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderScissoredCacheClearsDisabled) {
+  mWrScissoredCacheClearsEnabled = false;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderScissoredCacheClearsBlocked) {
+  mMockGfxInfo->mStatusWrScissoredCacheClears =
+      nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}
+
+TEST_F(GfxConfigManager, WebRenderScissoredCacheClearsForceEnabled) {
+  mWrScissoredCacheClearsForceEnabled = false;
+  mMockGfxInfo->mStatusWrScissoredCacheClears =
+      nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+  ConfigureWebRender();
+
+  EXPECT_TRUE(mFeatures.mWr.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrCompositor.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrAngle.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrDComp.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrShaderCache.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrOptimizedShaders.IsEnabled());
+  EXPECT_FALSE(mFeatures.mWrScissoredCacheClears.IsEnabled());
+  EXPECT_TRUE(mFeatures.mWrPartial.IsEnabled());
+  EXPECT_TRUE(mFeatures.mHwCompositing.IsEnabled());
+  EXPECT_TRUE(mFeatures.mGPUProcess.IsEnabled());
+  EXPECT_TRUE(mFeatures.mD3D11HwAngle.IsEnabled());
+}