Standardize usage of virtual/override/final specifiers in content/.

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 "cc/test/failure_output_surface.h"
 #include "cc/trees/layer_tree_host.h"
 #include "content/public/test/mock_render_thread.h"
@@ skipping 76 matching lines @@
 class RenderWidgetCompositorOutputSurface;
 
 class RenderWidgetOutputSurface : public TestRenderWidget {
  public:
   RenderWidgetOutputSurface() : compositor_(NULL) {}
   void SetCompositor(RenderWidgetCompositorOutputSurface* compositor);
 
   scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback) override;
 
  protected:
-  ~RenderWidgetOutputSurface() {}
+  ~RenderWidgetOutputSurface() override {}
 
  private:
   RenderWidgetCompositorOutputSurface* compositor_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetOutputSurface);
 };
 
 // Verify that failing to create an output surface will cause the compositor
 // to attempt to repeatedly create another output surface.  After enough
 // failures, verify that it attempts to create a fallback output surface.
@@ skipping 182 matching lines @@
 }
 
 TEST_F(RenderWidgetCompositorOutputSurfaceTest, FallbackSuccessNormalSuccess) {
   // The first success is a fallback, but the next should not be a fallback.
   RunTest(false, RenderWidgetCompositor::OUTPUT_SURFACE_RETRIES_BEFORE_FALLBACK,
           1, 1);
 }
 
 }  // namespace
 }  // namespace content