Unify background color gutters.

ui/android/delegated_frame_host_android.h

 // Copyright 2016 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 UI_ANDROID_DELEGATED_FRAME_HOST_ANDROID_H_
 #define UI_ANDROID_DELEGATED_FRAME_HOST_ANDROID_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "ui/android/ui_android_export.h"
 #include "ui/gfx/selection_bound.h"
 
 namespace cc {
 
 class CompositorFrame;
-class Layer;
 class SurfaceManager;
 class SurfaceLayer;
 class LocalSurfaceIdAllocator;
 enum class SurfaceDrawStatus;
 
 }  // namespace cc
 
 namespace ui {
 class ViewAndroid;
 class WindowAndroidCompositor;
 
 class UI_ANDROID_EXPORT DelegatedFrameHostAndroid
     : public cc::SurfaceFactoryClient {
  public:
   class Client {
    public:
     virtual void SetBeginFrameSource(
         cc::BeginFrameSource* begin_frame_source) = 0;
     virtual void ReturnResources(const cc::ReturnedResourceArray&) = 0;
   };
 
   DelegatedFrameHostAndroid(ViewAndroid* view,
-                            SkColor background_color,
                             Client* client,
                             const cc::FrameSinkId& frame_sink_id);
 
   ~DelegatedFrameHostAndroid() override;
 
   void SubmitCompositorFrame(cc::CompositorFrame frame,
                              cc::SurfaceFactory::DrawCallback draw_callback);
 
   void DestroyDelegatedContent();
 
   bool HasDelegatedContent() const;
 
   cc::FrameSinkId GetFrameSinkId() const;
 
   // Should only be called when the host has a content layer.
   void RequestCopyOfSurface(
       WindowAndroidCompositor* compositor,
       const gfx::Rect& src_subrect_in_pixel,
       cc::CopyOutputRequest::CopyOutputRequestCallback result_callback);
 
   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);
   void DetachFromCompositor();
 
  private:
   // cc::SurfaceFactoryClient implementation.
   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_;
 
   cc::SurfaceManager* surface_manager_;
   std::unique_ptr<cc::LocalSurfaceIdAllocator> local_surface_id_allocator_;
   WindowAndroidCompositor* registered_parent_compositor_ = nullptr;
   Client* client_;
 
   std::unique_ptr<cc::SurfaceFactory> surface_factory_;
 
   struct FrameData {
     FrameData();
     ~FrameData();
 
     cc::LocalSurfaceId local_surface_id;
     gfx::Size surface_size;
     float top_controls_height;
     float top_controls_shown_ratio;
     float bottom_controls_height;
     float bottom_controls_shown_ratio;
     cc::Selection<gfx::SelectionBound> viewport_selection;
     bool has_transparent_background;
   };
   std::unique_ptr<FrameData> current_frame_;
 
   scoped_refptr<cc::SurfaceLayer> content_layer_;
 
-  scoped_refptr<cc::Layer> background_layer_;
-
-  gfx::Size container_size_in_dip_;
-
   DISALLOW_COPY_AND_ASSIGN(DelegatedFrameHostAndroid);
 };
 
 }  // namespace ui
 
 #endif  // UI_ANDROID_DELEGATED_FRAME_HOST_ANDROID_H_