cc: Refactor TileTaskWorkerPool.

cc/raster/one_copy_tile_task_worker_pool.h

Index: cc/raster/one_copy_tile_task_worker_pool.h
diff --git a/cc/raster/one_copy_tile_task_worker_pool.h b/cc/raster/one_copy_tile_task_worker_pool.h
index da41020eb2a8269a88ffc64aca348318ba778412..2ba879b97f93172cf4cd6cb6b3006fc407f1ceac 100644
--- a/cc/raster/one_copy_tile_task_worker_pool.h
+++ b/cc/raster/one_copy_tile_task_worker_pool.h
@@ -24,7 +24,6 @@ class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool,
 
   static std::unique_ptr<TileTaskWorkerPool> Create(
       base::SequencedTaskRunner* task_runner,
-      TaskGraphRunner* task_graph_runner,
       ContextProvider* context_provider,
       ResourceProvider* resource_provider,
       int max_copy_texture_chromium_size,
@@ -33,9 +32,7 @@ class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool,
       ResourceFormat preferred_tile_format);
 
   // Overridden from TileTaskWorkerPool:
-  void Shutdown() override;
-  void ScheduleTasks(TaskGraph* graph) override;
-  void CheckForCompletedTasks() override;
+  void BarrierToSyncResources() override;
   ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
   bool GetResourceRequiresSwizzle(bool must_support_alpha) const override;
   RasterBufferProvider* AsRasterBufferProvider() override;
@@ -61,7 +58,6 @@ class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool,
 
  protected:
   OneCopyTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
-                            TaskGraphRunner* task_graph_runner,
                             ResourceProvider* resource_provider,
                             int max_copy_texture_chromium_size,
                             bool use_partial_raster,
@@ -86,8 +82,6 @@ class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool,
                           uint64_t previous_content_id,
                           uint64_t new_content_id);
 
-  TaskGraphRunner* task_graph_runner_;
-  const NamespaceToken namespace_token_;
   ResourceProvider* const resource_provider_;
   const int max_bytes_per_copy_operation_;
   bool use_partial_raster_;
@@ -98,8 +92,6 @@ class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool,
   ResourceFormat preferred_tile_format_;
   std::unique_ptr<StagingBufferPool> staging_pool_;
 
-  Task::Vector completed_tasks_;
-
   DISALLOW_COPY_AND_ASSIGN(OneCopyTileTaskWorkerPool);
 };