cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

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 223 matching lines @@
     MemoryUsage operator-(const MemoryUsage& other);
 
     bool Exceeds(const MemoryUsage& limit) const;
     int64_t memory_bytes() const { return memory_bytes_; }
 
    private:
     int64_t memory_bytes_;
     int resource_count_;
   };
 
-  void OnRasterTaskCompleted(
-      Tile::Id tile,
-      Resource* resource,
-      bool was_canceled);
+  void CheckForCompletedTasks();
+  void CompleteRasterTask(Tile::Id tile_id,
+                          Resource* resource,
+                          bool was_canceled);
 
   void FreeResourcesForTile(Tile* tile);
   void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);
   scoped_refptr<RasterTask> CreateRasterTask(
       const PrioritizedTile& prioritized_tile);
 
   scoped_ptr<EvictionTilePriorityQueue>
   FreeTileResourcesUntilUsageIsWithinLimit(
       scoped_ptr<EvictionTilePriorityQueue> eviction_priority_queue,
       const MemoryUsage& limit,
@@ skipping 40 matching lines @@
 
   bool did_check_for_completed_tasks_since_last_schedule_tasks_;
   bool did_oom_on_last_assign_;
 
   ImageDecodeController* image_decode_controller_;
 
   RasterTaskCompletionStats flush_stats_;
 
   std::vector<Tile*> released_tiles_;
 
+  Task::Vector raster_tasks_;
   std::vector<scoped_refptr<TileTask>> orphan_tasks_;
 
   TaskGraph graph_;
   scoped_refptr<TileTask> required_for_activation_done_task_;
   scoped_refptr<TileTask> required_for_draw_done_task_;
   scoped_refptr<TileTask> all_done_task_;
 
   UniqueNotifier more_tiles_need_prepare_check_notifier_;
 
   struct Signals {
@@ skipping 19 matching lines @@
   std::unordered_map<Tile::Id, std::vector<DrawImage>> scheduled_draw_images_;
 
   base::WeakPtrFactory<TileManager> task_set_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILE_MANAGER_H_