Revert "Move ViewDisplayList to GraphicsLayer"

Source/core/paint/DrawingRecorderTest.cpp

 // Copyright 2014 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 "config.h"
 #include "core/paint/DrawingRecorder.h"
 
-#include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/RenderingTestHelper.h"
 #include "platform/graphics/GraphicsContext.h"
-#include "platform/graphics/GraphicsLayer.h"
-#include "platform/graphics/paint/DisplayItemList.h"
 #include <gtest/gtest.h>
 
 namespace blink {
 namespace {
 
 class DrawingRecorderTest : public RenderingTest {
 public:
     DrawingRecorderTest() : m_renderView(nullptr) { }
 
 protected:
     RenderView* renderView() { return m_renderView; }
-    DisplayItemList& rootDisplayItemList() { return renderView()->layer()->graphicsLayerBacking()->displayItemList(); }
 
 private:
     virtual void SetUp() override
     {
         RuntimeEnabledFeatures::setSlimmingPaintEnabled(true);
 
         RenderingTest::SetUp();
-        enableCompositing();
 
         m_renderView = document().view()->renderView();
         ASSERT_TRUE(m_renderView);
     }
 
     RenderView* m_renderView;
 };
 
 void drawNothing(GraphicsContext* context, RenderView* renderer, PaintPhase phase, const FloatRect& bound)
 {
     DrawingRecorder drawingRecorder(context, renderer, phase, bound);
 }
 
 void drawRect(GraphicsContext* context, RenderView* renderer, PaintPhase phase, const FloatRect& bound)
 {
     DrawingRecorder drawingRecorder(context, renderer, phase, bound);
     IntRect rect(0, 0, 10, 10);
     context->drawRect(rect);
 }
 
 
 TEST_F(DrawingRecorderTest, DrawingRecorderTest_Nothing)
 {
     GraphicsContext* context = new GraphicsContext(nullptr);
     FloatRect bound = renderView()->viewRect();
-    EXPECT_EQ((size_t)0, rootDisplayItemList().paintList().size());
+    EXPECT_EQ((size_t)0, renderView()->viewDisplayList().paintList().size());
 
     drawNothing(context, renderView(), PaintPhaseForeground, bound);
-    EXPECT_EQ((size_t)0, rootDisplayItemList().paintList().size());
+    EXPECT_EQ((size_t)0, renderView()->viewDisplayList().paintList().size());
 }
 
 TEST_F(DrawingRecorderTest, DrawingRecorderTest_Rect)
 {
     GraphicsContext* context = new GraphicsContext(nullptr);
     FloatRect bound = renderView()->viewRect();
     drawRect(context, renderView(), PaintPhaseForeground, bound);
-    EXPECT_EQ((size_t)1, rootDisplayItemList().paintList().size());
+    EXPECT_EQ((size_t)1, renderView()->viewDisplayList().paintList().size());
 }
 
 }
 }