cc: Cleanup Layer::SetNeedsDisplayInRect

cc/resources/image_layer_updater.h

 // Copyright 2012 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 CC_RESOURCES_IMAGE_LAYER_UPDATER_H_
 #define CC_RESOURCES_IMAGE_LAYER_UPDATER_H_
 
 #include "cc/base/cc_export.h"
 #include "cc/resources/layer_updater.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 25 matching lines @@
 
   virtual scoped_ptr<LayerUpdater::Resource> CreateResource(
       PrioritizedResourceManager*) OVERRIDE;
 
   void UpdateTexture(ResourceUpdateQueue* queue,
                      PrioritizedResource* texture,
                      gfx::Rect source_rect,
                      gfx::Vector2d dest_offset,
                      bool partial_update);
 
-  void set_bitmap(const SkBitmap& bitmap) { bitmap_ = bitmap; }
+  void SetBitmap(const SkBitmap& bitmap);
+  bool UsingBitmap(const SkBitmap& bitmap) const;
 
  private:
   ImageLayerUpdater() {}
   virtual ~ImageLayerUpdater() {}
 
   SkBitmap bitmap_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageLayerUpdater);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_IMAGE_LAYER_UPDATER_H_