Standardize usage of virtual/override/final in cc/

cc/surfaces/surface_aggregator_unittest.cc

 // 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.
 
 #include "cc/output/compositor_frame.h"
 #include "cc/output/delegated_frame_data.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/surface_draw_quad.h"
@@ skipping 24 matching lines @@
   return invalid;
 }
 
 gfx::Size SurfaceSize() {
   static gfx::Size size(5, 5);
   return size;
 }
 
 class EmptySurfaceFactoryClient : public SurfaceFactoryClient {
  public:
-  virtual void ReturnResources(
-      const ReturnedResourceArray& resources) override {}
+  void ReturnResources(const ReturnedResourceArray& resources) override {}
 };
 
 class SurfaceAggregatorTest : public testing::Test {
  public:
   SurfaceAggregatorTest()
       : factory_(&manager_, &empty_client_), aggregator_(&manager_, NULL) {}
 
  protected:
   SurfaceManager manager_;
   EmptySurfaceFactoryClient empty_client_;
@@ skipping 1083 matching lines @@
   FakeOutputSurfaceClient output_surface_client_;
   scoped_ptr<OutputSurface> output_surface_;
   scoped_ptr<SharedBitmapManager> shared_bitmap_manager_;
   scoped_ptr<ResourceProvider> resource_provider_;
   scoped_ptr<SurfaceAggregator> aggregator_;
 };
 
 class ResourceTrackingSurfaceFactoryClient : public SurfaceFactoryClient {
  public:
   ResourceTrackingSurfaceFactoryClient() {}
-  virtual ~ResourceTrackingSurfaceFactoryClient() {}
+  ~ResourceTrackingSurfaceFactoryClient() override {}
 
-  virtual void ReturnResources(
-      const ReturnedResourceArray& resources) override {
+  void ReturnResources(const ReturnedResourceArray& resources) override {
     returned_resources_ = resources;
   }
 
   ReturnedResourceArray returned_resources() const {
     return returned_resources_;
   }
 
  private:
   ReturnedResourceArray returned_resources_;
 
@@ skipping 69 matching lines @@
     returned_ids[i] = client.returned_resources()[i].id;
   }
   EXPECT_THAT(returned_ids,
               testing::WhenSorted(testing::ElementsAreArray(ids)));
   factory.Destroy(surface_id);
 }
 
 }  // namespace
 }  // namespace cc