cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

cc/raster/gpu_tile_task_worker_pool.h

 // Copyright 2014 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_RASTER_GPU_TILE_TASK_WORKER_POOL_H_
 #define CC_RASTER_GPU_TILE_TASK_WORKER_POOL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 18 matching lines @@
       ResourceProvider* resource_provider,
       bool use_distance_field_text,
       int gpu_rasterization_msaa_sample_count);
 
   // Overridden from TileTaskWorkerPool:
   TileTaskRunner* AsTileTaskRunner() override;
 
   // Overridden from TileTaskRunner:
   void Shutdown() override;
   void ScheduleTasks(TaskGraph* graph) override;
-  void CheckForCompletedTasks() override;
+  void CollectCompletedTasks(Task::Vector* completed_tasks) override;
   ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
   bool GetResourceRequiresSwizzle(bool must_support_alpha) const override;
+  TileTaskClient* AsTileTaskClient() override;
 
   // Overridden from TileTaskClient:
   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
       const Resource* resource,
       uint64_t resource_content_id,
       uint64_t previous_content_id) override;
   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
 
  private:
   GpuTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
                         TaskGraphRunner* task_graph_runner,
                         ContextProvider* context_provider,
                         ResourceProvider* resource_provider,
                         bool use_distance_field_text,
                         int gpu_rasterization_msaa_sample_count);
 
-  void CompleteTasks(const Task::Vector& tasks);
-
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   TaskGraphRunner* task_graph_runner_;
   const NamespaceToken namespace_token_;
   scoped_ptr<GpuRasterizer> rasterizer_;
 
-  Task::Vector completed_tasks_;
-
   DISALLOW_COPY_AND_ASSIGN(GpuTileTaskWorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_GPU_TILE_TASK_WORKER_POOL_H_