Convert Settings::rootLayerScrolls to RuntimeEnabledFeatures

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/compositing/CompositedLayerMapping.h"
 #include "core/paint/PaintControllerPaintTest.h"
 #include "platform/graphics/GraphicsContext.h"
 
 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;
 };
 
 class PaintLayerPainterTest
     : public PaintControllerPaintTestBase
     , 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)
 {
     setBodyInnerHTML(
         "<div id='container1' style='position: relative; z-index: 1; width: 200px; height: 200px; background-color: blue'>"
         "  <div id='content1' style='position: absolute; width: 100px; height: 100px; background-color: red'></div>"
         "</div>"
         "<div id='container2' style='position: relative; z-index: 1; width: 200px; height: 200px; background-color: blue'>"
         "  <div id='content2' style='position: absolute; width: 100px; height: 100px; background-color: green'></div>"
         "</div>");
@@ skipping 480 matching lines @@
     PaintLayer& layer = *table.layer();
     EXPECT_TRUE(layer.isSelfPaintingLayer());
     EXPECT_FALSE(layer.needsPaintPhaseDescendantBlockBackgrounds());
 
     toHTMLElement(table.node())->setAttribute(HTMLNames::styleAttr, "position: relative; border-collapse: collapse");
     document().view()->updateAllLifecyclePhases();
     EXPECT_TRUE(layer.needsPaintPhaseDescendantBlockBackgrounds());
 }
 
 } // namespace blink