Convert Settings::rootLayerScrolls to RuntimeEnabledFeatures

third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp

Index: third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp b/third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp
index 00a1f7495079a177cf40c20bd4690cd672274346..4913162ae058f3bb9b065685c2494a51bdd574f2 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayerPainterTest.cpp
@@ -11,10 +11,10 @@
 namespace blink {
 
 struct PaintLayerPainterTestParam {
-    PaintLayerPainterTestParam(FrameSettingOverrideFunction frameSettingOverride, bool slimmingPaintV2)
-        : frameSettingOverride(frameSettingOverride), slimmingPaintV2(slimmingPaintV2) { }
+    PaintLayerPainterTestParam(bool rootLayerScrolling, bool slimmingPaintV2)
+        : rootLayerScrolling(rootLayerScrolling), slimmingPaintV2(slimmingPaintV2) { }
 
-    FrameSettingOverrideFunction frameSettingOverride;
+    bool rootLayerScrolling;
     bool slimmingPaintV2;
 };
 
@@ -23,15 +23,30 @@ class PaintLayerPainterTest
     , public testing::WithParamInterface<PaintLayerPainterTestParam> {
     USING_FAST_MALLOC(PaintLayerPainterTest);
 public:
-    PaintLayerPainterTest() : PaintControllerPaintTestBase(GetParam().slimmingPaintV2) { }
-    FrameSettingOverrideFunction settingOverrider() const override { return GetParam().frameSettingOverride; }
+    PaintLayerPainterTest()
+        : PaintControllerPaintTestBase(GetParam().slimmingPaintV2)
+        , m_originalRootLayerScrollingEnabled(RuntimeEnabledFeatures::rootLayerScrollingEnabled())
+        , m_enableRootLayerScrolling(GetParam().rootLayerScrolling)
+    {
+        RuntimeEnabledFeatures::setRootLayerScrollingEnabled(m_enableRootLayerScrolling);
+    }
+
+    ~PaintLayerPainterTest()
+    {
+        CHECK_EQ(m_enableRootLayerScrolling, RuntimeEnabledFeatures::rootLayerScrollingEnabled());
+        RuntimeEnabledFeatures::setRootLayerScrollingEnabled(m_originalRootLayerScrollingEnabled);
+    }
+
+private:
+    bool m_originalRootLayerScrollingEnabled;
+    bool m_enableRootLayerScrolling;
 };
 
 INSTANTIATE_TEST_CASE_P(All, PaintLayerPainterTest, ::testing::Values(
-    PaintLayerPainterTestParam(nullptr, false), // non-root-layer-scrolls, slimming-paint-v1
-    PaintLayerPainterTestParam(nullptr, true), // non-root-layer-scrolls, slimming-paint-v2
-    PaintLayerPainterTestParam(RootLayerScrollsFrameSettingOverride, false), // root-layer-scrolls, slimming-paint-v1
-    PaintLayerPainterTestParam(RootLayerScrollsFrameSettingOverride, true))); // root-layer-scrolls, slimming-paint-v2
+    PaintLayerPainterTestParam(false, false), // non-root-layer-scrolls, slimming-paint-v1
+    PaintLayerPainterTestParam(false, true), // non-root-layer-scrolls, slimming-paint-v2
+    PaintLayerPainterTestParam(true, false), // root-layer-scrolls, slimming-paint-v1
+    PaintLayerPainterTestParam(true, true))); // root-layer-scrolls, slimming-paint-v2
 
 TEST_P(PaintLayerPainterTest, CachedSubsequence)
 {