cc: Generalize raster task notifications

cc/resources/image_raster_worker_pool.h

 // Copyright 2013 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_IMAGE_RASTER_WORKER_POOL_H_
 #define CC_RESOURCES_IMAGE_RASTER_WORKER_POOL_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "cc/resources/raster_worker_pool.h"
@@ skipping 31 matching lines @@
   // Overridden from RasterizerTaskClient:
   virtual RasterBuffer* AcquireBufferForRaster(RasterTask* task) OVERRIDE;
   virtual void ReleaseBufferForRaster(RasterTask* task) OVERRIDE;
 
  protected:
   ImageRasterWorkerPool(base::SequencedTaskRunner* task_runner,
                         TaskGraphRunner* task_graph_runner,
                         ResourceProvider* resource_provider);
 
  private:
-  void OnRasterFinished();
-  void OnRasterRequiredForActivationFinished();
+  void OnRasterFinished(TaskSet task_set);
   scoped_refptr<base::debug::ConvertableToTraceFormat> StateAsValue() const;
 
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   TaskGraphRunner* task_graph_runner_;
   const NamespaceToken namespace_token_;
   RasterizerClient* client_;
   ResourceProvider* resource_provider_;
 
-  bool raster_tasks_pending_;
-  bool raster_tasks_required_for_activation_pending_;
+  TaskSetCollection raster_pending_;
 
-  scoped_refptr<RasterizerTask> raster_finished_task_;
-  scoped_refptr<RasterizerTask> raster_required_for_activation_finished_task_;
+  scoped_refptr<RasterizerTask> raster_finished_tasks_[kNumberOfTaskSets];
 
   // Task graph used when scheduling tasks and vector used to gather
   // completed tasks.
   TaskGraph graph_;
   Task::Vector completed_tasks_;
 
   base::WeakPtrFactory<ImageRasterWorkerPool> raster_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageRasterWorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_IMAGE_RASTER_WORKER_POOL_H_