Unify background color gutters.

ui/android/delegated_frame_host_android.h

Index: ui/android/delegated_frame_host_android.h
diff --git a/ui/android/delegated_frame_host_android.h b/ui/android/delegated_frame_host_android.h
index 9b47f7b43cc06c88612fa7c73b4aeea716901cc8..8421d06c96fbd17675f569698fa5faecca8ca3af 100644
--- a/ui/android/delegated_frame_host_android.h
+++ b/ui/android/delegated_frame_host_android.h
@@ -17,7 +17,6 @@
 namespace cc {
 
 class CompositorFrame;
-class Layer;
 class SurfaceManager;
 class SurfaceLayer;
 class LocalSurfaceIdAllocator;
@@ -40,7 +39,6 @@ class UI_ANDROID_EXPORT DelegatedFrameHostAndroid
   };
 
   DelegatedFrameHostAndroid(ViewAndroid* view,
-                            SkColor background_color,
                             Client* client,
                             const cc::FrameSinkId& frame_sink_id);
 
@@ -63,10 +61,6 @@ class UI_ANDROID_EXPORT DelegatedFrameHostAndroid
 
   void CompositorFrameSinkChanged();
 
-  void UpdateBackgroundColor(SkColor color);
-
-  void UpdateContainerSizeinDIP(const gfx::Size& size_in_dip);
-
   // Called when this DFH is attached/detached from a parent browser compositor
   // and needs to be attached to the surface hierarchy.
   void AttachToCompositor(WindowAndroidCompositor* compositor);
@@ -77,8 +71,6 @@ class UI_ANDROID_EXPORT DelegatedFrameHostAndroid
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
   void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
 
-  void UpdateBackgroundLayer();
-
   const cc::FrameSinkId frame_sink_id_;
 
   ViewAndroid* view_;
@@ -107,10 +99,6 @@ class UI_ANDROID_EXPORT DelegatedFrameHostAndroid
 
   scoped_refptr<cc::SurfaceLayer> content_layer_;
 
-  scoped_refptr<cc::Layer> background_layer_;
-
-  gfx::Size container_size_in_dip_;
-
   DISALLOW_COPY_AND_ASSIGN(DelegatedFrameHostAndroid);
 };