Add implementation of WebWidgetClient::initializeLayerTreeView()

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 "base/time.h"
 #include "cc/layer_tree_host_client.h"
 #include "cc/layer_tree_settings.h"
 #include "cc/rendering_stats.h"
 #include "skia/ext/refptr.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeView.h"
 
 class SkPicture;
 
 namespace cc {
 class LayerTreeHost;
 }
 
 namespace content {
 class RenderWidget;
 
 class RenderWidgetCompositor : public WebKit::WebLayerTreeView,
                                public cc::LayerTreeHostClient {
  public:
   // Attempt to construct and initialize a compositor instance for the widget
   // with the given settings. Returns NULL if initialization fails.
-  static scoped_ptr<RenderWidgetCompositor> Create(
-      RenderWidget* widget,
-      WebKit::WebLayerTreeView::Settings settings);
+  static scoped_ptr<RenderWidgetCompositor> Create(RenderWidget* widget);
 
   virtual ~RenderWidgetCompositor();
 
   void SetSuppressScheduleComposite(bool suppress);
   void Animate(base::TimeTicks time);
   void Composite();
   void GetRenderingStats(cc::RenderingStats* stats);
   skia::RefPtr<SkPicture> CapturePicture();
   void EnableHidingTopControls(bool enable);
 
@@ skipping 61 matching lines @@
   bool threaded_;
   bool suppress_schedule_composite_;
   RenderWidget* widget_;
   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_