adding render stats for deferred image decoding

cc/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_TILE_MANAGER_H_
 #define CC_TILE_MANAGER_H_
 
 #include <list>
 #include <queue>
 #include <vector>
@@ skipping 86 matching lines @@
   void ScheduleCheckForCompletedSetPixels();
   void DispatchMoreTasks();
   void DispatchOneRasterTask(RasterThread*, scoped_refptr<Tile>);
   void OnRasterTaskCompleted(
       scoped_refptr<Tile>,
       scoped_ptr<ResourcePool::Resource>,
       scoped_refptr<PicturePileImpl>,
       RenderingStats*);
   void DidFinishTileInitialization(Tile*);
   void DispatchImageDecodingTasksForTile(Tile*);
-  void OnImageDecodingTaskCompleted(scoped_refptr<Tile>, uint32_t);
+  void OnImageDecodingTaskCompleted(scoped_refptr<Tile>,
+                                    uint32_t,
+                                    RenderingStats*);
   void DispatchOneImageDecodingTask(
       RasterThread*, scoped_refptr<Tile>, skia::LazyPixelRef*);
+  void GatherPixelRefsForFile(Tile*);
   RasterThread* GetFreeRasterThread();
 
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;
   bool manage_tiles_pending_;
   bool check_for_completed_set_pixels_pending_;
 
   GlobalStateThatImpactsTilePriority global_state_;
 
   typedef std::vector<Tile*> TileVector;
@@ skipping 15 matching lines @@
   RasterThreadVector raster_threads_;
 
   RenderingStats rendering_stats_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILE_MANAGER_H_