RootLayerScrolling: Fix PaintControllerPaintTestForSlimmingPaintV2

third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h

 // 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.
 
 #ifndef PaintControllerPaintTest_h
 #define PaintControllerPaintTest_h
 
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
@@ skipping 70 matching lines @@
 
   int numCachedNewItems() { return rootPaintController().m_numCachedNewItems; }
 };
 
 class PaintControllerPaintTest : public PaintControllerPaintTestBase {
  public:
   PaintControllerPaintTest() : PaintControllerPaintTestBase(false) {}
 };
 
 class PaintControllerPaintTestForSlimmingPaintV2
-    : public PaintControllerPaintTestBase {
+    : public PaintControllerPaintTestBase,
+      public testing::WithParamInterface<bool>,
+      private ScopedRootLayerScrollingForTest {
  public:
   PaintControllerPaintTestForSlimmingPaintV2()
-      : PaintControllerPaintTestBase(true) {}
+      : PaintControllerPaintTestBase(true),
+        ScopedRootLayerScrollingForTest(GetParam()) {}
 };
 
 class PaintControllerPaintTestForSlimmingPaintV1AndV2
     : public PaintControllerPaintTestBase,
       public testing::WithParamInterface<bool> {
  public:
   PaintControllerPaintTestForSlimmingPaintV1AndV2()
       : PaintControllerPaintTestBase(GetParam()) {}
 };
 
@@ skipping 36 matching lines @@
 // Shorter names for frequently used display item types in tests.
 const DisplayItem::Type backgroundType = DisplayItem::kBoxDecorationBackground;
 const DisplayItem::Type foregroundType =
     DisplayItem::paintPhaseToDrawingType(PaintPhaseForeground);
 const DisplayItem::Type documentBackgroundType =
     DisplayItem::kDocumentBackground;
 
 }  // namespace blink
 
 #endif  // PaintControllerPaintTest_h