Introduce CompositorDependencies for RenderWidgetCompositor.

content/renderer/gpu/render_widget_compositor.h

Index: content/renderer/gpu/render_widget_compositor.h
diff --git a/content/renderer/gpu/render_widget_compositor.h b/content/renderer/gpu/render_widget_compositor.h
index 1f89c727bfb65c294c2fca7611595e050d1ccda0..96c058233cfe1ede2e387f47c6a1409f6dc6c0b1 100644
--- a/content/renderer/gpu/render_widget_compositor.h
+++ b/content/renderer/gpu/render_widget_compositor.h
@@ -16,6 +16,7 @@
 #include "cc/trees/layer_tree_host_single_thread_client.h"
 #include "cc/trees/layer_tree_settings.h"
 #include "content/common/content_export.h"
+#include "content/renderer/gpu/compositor_dependencies.h"
 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/rect.h"
@@ -41,8 +42,9 @@ class CONTENT_EXPORT RenderWidgetCompositor
  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,
-                                                   bool threaded);
+  static scoped_ptr<RenderWidgetCompositor> Create(
+      RenderWidget* widget,
+      CompositorDependencies* compositor_deps);
 
   virtual ~RenderWidgetCompositor();
 
@@ -163,16 +165,17 @@ class CONTENT_EXPORT RenderWidgetCompositor
   };
 
  protected:
-  RenderWidgetCompositor(RenderWidget* widget, bool threaded);
+  RenderWidgetCompositor(RenderWidget* widget,
+                         CompositorDependencies* compositor_deps);
 
-  void Initialize(const cc::LayerTreeSettings& settings);
+  void Initialize();
 
   cc::LayerTreeHost* layer_tree_host() { return layer_tree_host_.get(); }
 
  private:
   int num_failed_recreate_attempts_;
-  bool threaded_;
   RenderWidget* widget_;
+  CompositorDependencies* compositor_deps_;
   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 
   scoped_ptr<cc::CopyOutputRequest> temporary_copy_output_request_;