cc: Add image decode queue functionality to image manager.

cc/tiles/tile_manager.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_TILES_TILE_MANAGER_H_
 #define CC_TILES_TILE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 192 matching lines @@
 
   bool HasScheduledTileTasksForTesting() const {
     return has_scheduled_tile_tasks_;
   }
 
   void OnRasterTaskCompleted(std::unique_ptr<RasterBuffer> raster_buffer,
                              Tile* tile,
                              Resource* resource,
                              bool was_canceled);
 
+  void NotifyFrameFinished();
+
  protected:
   void FreeResourcesForReleasedTiles();
   void CleanUpReleasedTiles();
 
   friend class Tile;
   // Virtual for testing.
   virtual void Release(Tile* tile);
   Tile::Id GetUniqueTileId() { return ++next_tile_id_; }
 
  private:
@@ skipping 121 matching lines @@
   std::vector<scoped_refptr<TileTask>> locked_image_tasks_;
 
   base::WeakPtrFactory<TileManager> task_set_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILE_MANAGER_H_