[Slimming Paint] Track clip renderers

Source/core/paint/ClipRecorderTest.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/ClipRecorder.h"
 
 #include "core/rendering/RenderView.h"
 #include "core/rendering/RenderingTestHelper.h"
 #include "core/rendering/compositing/RenderLayerCompositor.h"
@@ skipping 21 matching lines @@
         ASSERT_TRUE(m_renderView);
     }
 
     RenderView* m_renderView;
 };
 
 void drawClip(GraphicsContext* context, RenderView* renderer, PaintPhase phase, const FloatRect& bound)
 {
     IntRect rect(1, 1, 9, 9);
     ClipRect clipRect(rect);
-    ClipRecorder clipRecorder(renderer->compositor()->rootRenderLayer(), context, DisplayItem::ClipLayerForeground, clipRect);
+    ClipRecorder clipRecorder(renderer->compositor()->rootRenderLayer()->renderer(), context, DisplayItem::ClipLayerForeground, clipRect);
 }
 
 TEST_F(ClipRecorderTest, ClipRecorderTest_Single)
 {
     GraphicsContext* context = new GraphicsContext(nullptr);
     FloatRect bound = renderView()->viewRect();
     EXPECT_EQ((size_t)0, renderView()->viewDisplayList().paintList().size());
 
     drawClip(context, renderView(), PaintPhaseForeground, bound);
     EXPECT_EQ((size_t)2, renderView()->viewDisplayList().paintList().size());
 }
 
 }
 }