Remove scroll_clip_layer dependency from viewport layer tracking

content/renderer/gpu/render_widget_compositor.h

 // Copyright (c) 2013 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 CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
 #define CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
@@ skipping 130 matching lines @@
   void SetNeedsBeginFrame() override;
   void DidStopFlinging() override;
   void LayoutAndPaintAsync(
       blink::WebLayoutAndPaintAsyncCallback* callback) override;
   void CompositeAndReadbackAsync(
       blink::WebCompositeAndReadbackAsyncCallback* callback) override;
   void SetDeferCommits(bool defer_commits) override;
   void RegisterViewportLayers(
       const blink::WebLayer* overscrollElasticityLayer,
       const blink::WebLayer* pageScaleLayer,
+      const blink::WebLayer* innerViewportContainerLayer,
+      const blink::WebLayer* outerViewportContainerLayer,
       const blink::WebLayer* innerViewportScrollLayer,
       const blink::WebLayer* outerViewportScrollLayer) override;
   void ClearViewportLayers() override;
   void RegisterSelection(const blink::WebSelection& selection) override;
   void ClearSelection() override;
   void SetMutatorClient(
       std::unique_ptr<blink::WebCompositorMutatorClient>) override;
   void ForceRecalculateRasterScales() override;
   void SetEventListenerProperties(
       blink::WebEventListenerClass eventClass,
@@ skipping 83 matching lines @@
   cc::FrameSinkId frame_sink_id_;
 
   base::WeakPtrFactory<RenderWidgetCompositor> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetCompositor);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_