cc: GPU rasterize tiles synchronously in PrepareToDraw

cc/resources/gpu_raster_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_RESOURCES_GPU_RASTER_WORKER_POOL_H_
 #define CC_RESOURCES_GPU_RASTER_WORKER_POOL_H_
 
 #include "base/memory/weak_ptr.h"
 #include "cc/resources/raster_worker_pool.h"
 #include "cc/resources/rasterizer.h"
@@ skipping 14 matching lines @@
       ContextProvider* context_provider,
       ResourceProvider* resource_provider,
       bool use_distance_field_text);
 
   // Overridden from RasterWorkerPool:
   Rasterizer* AsRasterizer() override;
 
   // Overridden from Rasterizer:
   void SetClient(RasterizerClient* client) override;
   void Shutdown() override;
+  void RunTasks(RasterTaskQueue* queue) override;
   void ScheduleTasks(RasterTaskQueue* queue) override;
   void CheckForCompletedTasks() override;
 
   // Overridden from RasterizerTaskClient:
   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
       const Resource* resource) override;
   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
 
  private:
   GpuRasterWorkerPool(base::SequencedTaskRunner* task_runner,
                       ContextProvider* context_provider,
                       ResourceProvider* resource_provider,
                       bool use_distance_field_text);
 
   void OnRasterFinished(TaskSet task_set);
   void ScheduleRunTasksOnOriginThread();
   void RunTasksOnOriginThread();
   void RunTaskOnOriginThread(RasterizerTask* task);
+  void CompleteTasks(const Task::Vector& tasks);
 
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   scoped_ptr<TaskGraphRunner> task_graph_runner_;
   const NamespaceToken namespace_token_;
   RasterizerClient* client_;
   ContextProvider* context_provider_;
   ResourceProvider* resource_provider_;
   SkMultiPictureDraw multi_picture_draw_;
 
   bool run_tasks_on_origin_thread_pending_;
@@ skipping 11 matching lines @@
   base::WeakPtrFactory<GpuRasterWorkerPool> raster_finished_weak_ptr_factory_;
 
   base::WeakPtrFactory<GpuRasterWorkerPool> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuRasterWorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_GPU_RASTER_WORKER_POOL_H_