cc: Move GPU raster to DirectRasterWorkerPool.

cc/resources/pixel_buffer_raster_worker_pool.h

Index: cc/resources/pixel_buffer_raster_worker_pool.h
diff --git a/cc/resources/pixel_buffer_raster_worker_pool.h b/cc/resources/pixel_buffer_raster_worker_pool.h
index a658484b438b940d58d06646a7657780e1440cf5..d9c7412848863e7350c29235060d615cf4cda37b 100644
--- a/cc/resources/pixel_buffer_raster_worker_pool.h
+++ b/cc/resources/pixel_buffer_raster_worker_pool.h
@@ -29,12 +29,11 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
 
   static scoped_ptr<RasterWorkerPool> Create(
       ResourceProvider* resource_provider,
-      ContextProvider* context_provider,
       size_t max_transfer_buffer_usage_bytes);
 
   // Overridden from RasterWorkerPool:
   virtual void Shutdown() OVERRIDE;
-  virtual void ScheduleTasks(RasterTask::Queue* queue) OVERRIDE;
+  virtual void ScheduleTasks(RasterTaskQueue* queue) OVERRIDE;
   virtual unsigned GetResourceTarget() const OVERRIDE;
   virtual ResourceFormat GetResourceFormat() const OVERRIDE;
   virtual void CheckForCompletedTasks() OVERRIDE;
@@ -50,7 +49,6 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
  protected:
   PixelBufferRasterWorkerPool(internal::TaskGraphRunner* task_graph_runner,
                               ResourceProvider* resource_provider,
-                              ContextProvider* context_provider,
                               size_t max_transfer_buffer_usage_bytes);
 
  private:
@@ -84,7 +82,7 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
 
   bool shutdown_;
 
-  RasterTask::Queue raster_tasks_;
+  RasterTaskQueue raster_tasks_;
   RasterTaskSet raster_tasks_required_for_activation_;
   RasterTaskStateMap raster_task_states_;
   RasterTaskDeque raster_tasks_with_pending_upload_;