Standardize usage of virtual/override/final specifiers.

content/renderer/gpu/render_widget_compositor_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 "content/renderer/gpu/render_widget_compositor.h"
 
 #include "cc/output/begin_frame_args.h"
 #include "content/public/test/mock_render_thread.h"
 #include "content/renderer/render_widget.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 28 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TestRenderWidget);
 };
 
 class RenderWidgetCompositorTest : public testing::Test {
  public:
   RenderWidgetCompositorTest()
       : render_widget_(make_scoped_refptr(new TestRenderWidget())),
         render_widget_compositor_(
             RenderWidgetCompositor::Create(render_widget_.get(), false)) {}
-  virtual ~RenderWidgetCompositorTest() {}
+  ~RenderWidgetCompositorTest() override {}
 
  protected:
   MockRenderThread render_thread_;
   scoped_refptr<TestRenderWidget> render_widget_;
   scoped_ptr<RenderWidgetCompositor> render_widget_compositor_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetCompositorTest);
 };
 
 TEST_F(RenderWidgetCompositorTest, BeginMainFrame) {
   base::TimeTicks frame_time(base::TimeTicks() +
                              base::TimeDelta::FromSeconds(1));
   base::TimeTicks deadline(base::TimeTicks() + base::TimeDelta::FromSeconds(2));
   base::TimeDelta interval(base::TimeDelta::FromSeconds(3));
   cc::BeginFrameArgs args(
       cc::BeginFrameArgs::Create(frame_time, deadline, interval));
 
   EXPECT_CALL(render_widget_->mock_webwidget_,
               beginFrame(AllOf(
                   Field(&blink::WebBeginFrameArgs::lastFrameTimeMonotonic, 1),
                   Field(&blink::WebBeginFrameArgs::deadline, 2),
                   Field(&blink::WebBeginFrameArgs::interval, 3))));
 
   render_widget_compositor_->BeginMainFrame(args);
 }
 
 }  // namespace content