Standardize usage of virtual/override/final specifiers.

content/test/test_render_view_host.h

 // Copyright (c) 2012 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 CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_
 #define CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 263 matching lines @@
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 // Adds methods to get straight at the impl classes.
 class RenderViewHostImplTestHarness : public RenderViewHostTestHarness {
  public:
   RenderViewHostImplTestHarness();
-  virtual ~RenderViewHostImplTestHarness();
+  ~RenderViewHostImplTestHarness() override;
 
   // contents() is equivalent to static_cast<TestWebContents*>(web_contents())
   TestWebContents* contents();
 
   // RVH/RFH getters are shorthand for oft-used bits of web_contents().
 
   // test_rvh() is equivalent to any of the following:
   //   contents()->GetMainFrame()->GetRenderViewHost()
   //   contents()->GetRenderViewHost()
   //   static_cast<TestRenderViewHost*>(rvh())
@@ skipping 24 matching lines @@
  private:
   typedef scoped_ptr<ui::test::ScopedSetSupportedScaleFactors>
       ScopedSetSupportedScaleFactors;
   ScopedSetSupportedScaleFactors scoped_set_supported_scale_factors_;
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostImplTestHarness);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_RENDER_VIEW_HOST_H_