cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

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 b98c4ec49ad83ca0a26e2837f05f8ed0f978add4..a987bef7a67c52988387036daec585f34645866c 100644
--- a/cc/tiles/tile_manager.h
+++ b/cc/tiles/tile_manager.h
@@ -244,10 +244,8 @@ class CC_EXPORT TileManager {
     int resource_count_;
   };
 
-  void OnRasterTaskCompleted(
-      Tile::Id tile,
-      Resource* resource,
-      bool was_canceled);
+  void CheckForCompletedTasks();
+  void OnRasterTaskCompleted(TileTask* task);
 
   void FreeResourcesForTile(Tile* tile);
   void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);