Standardize usage of virtual/override/final in cc/

cc/resources/pixel_buffer_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_PIXEL_BUFFER_RASTER_WORKER_POOL_H_
 #define CC_RESOURCES_PIXEL_BUFFER_RASTER_WORKER_POOL_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 11 matching lines @@
 }
 }
 
 namespace cc {
 class ResourceProvider;
 
 class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool,
                                               public Rasterizer,
                                               public RasterizerTaskClient {
  public:
-  virtual ~PixelBufferRasterWorkerPool();
+  ~PixelBufferRasterWorkerPool() override;
 
   static scoped_ptr<RasterWorkerPool> Create(
       base::SequencedTaskRunner* task_runner,
       TaskGraphRunner* task_graph_runner,
       ContextProvider* context_provider,
       ResourceProvider* resource_provider,
       size_t max_transfer_buffer_usage_bytes);
 
   // Overridden from RasterWorkerPool:
-  virtual Rasterizer* AsRasterizer() override;
+  Rasterizer* AsRasterizer() override;
 
   // Overridden from Rasterizer:
-  virtual void SetClient(RasterizerClient* client) override;
-  virtual void Shutdown() override;
-  virtual void ScheduleTasks(RasterTaskQueue* queue) override;
-  virtual void CheckForCompletedTasks() override;
+  void SetClient(RasterizerClient* client) override;
+  void Shutdown() override;
+  void ScheduleTasks(RasterTaskQueue* queue) override;
+  void CheckForCompletedTasks() override;
 
   // Overridden from RasterizerTaskClient:
-  virtual scoped_ptr<RasterBuffer> AcquireBufferForRaster(
+  scoped_ptr<RasterBuffer> AcquireBufferForRaster(
       const Resource* resource) override;
-  virtual void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
+  void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
 
  private:
   struct RasterTaskState {
     class TaskComparator {
      public:
       explicit TaskComparator(const RasterTask* task) : task_(task) {}
 
       bool operator()(const RasterTaskState& state) const {
         return state.task == task_;
       }
@@ skipping 67 matching lines @@
 
   base::WeakPtrFactory<PixelBufferRasterWorkerPool>
       raster_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PixelBufferRasterWorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PIXEL_BUFFER_RASTER_WORKER_POOL_H_