cc: Add image decode queue functionality to image manager.

cc/tiles/tile_manager.h

Index: cc/tiles/tile_manager.h
diff --git a/cc/tiles/tile_manager.h b/cc/tiles/tile_manager.h
index 1136708ebde1b4d5a1cfc7c145d4669391db74c0..627e77a7641a59b7536f289b2dca71edb2ac9ec7 100644
--- a/cc/tiles/tile_manager.h
+++ b/cc/tiles/tile_manager.h
@@ -98,7 +98,8 @@ RasterTaskCompletionStatsAsValue(const RasterTaskCompletionStats& stats);
 class CC_EXPORT TileManager {
  public:
   TileManager(TileManagerClient* client,
-              base::SequencedTaskRunner* task_runner,
+              base::SequencedTaskRunner* origin_task_runner,
+              scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner,
               size_t scheduled_raster_task_limit,
               bool use_partial_raster);
   virtual ~TileManager();
@@ -210,6 +211,8 @@ class CC_EXPORT TileManager {
                              Resource* resource,
                              bool was_canceled);
 
+  void NotifyFrameFinished();
+
  protected:
   void FreeResourcesForReleasedTiles();
   void CleanUpReleasedTiles();