Standardize usage of virtual/override/final in content/

content/public/browser/render_frame_host.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 CONTENT_PUBLIC_BROWSER_RENDER_FRAME_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_FRAME_HOST_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 15 matching lines @@
 class SiteInstance;
 
 // The interface provides a communication conduit with a frame in the renderer.
 class CONTENT_EXPORT RenderFrameHost : public IPC::Listener,
                                        public IPC::Sender {
  public:
   // Returns the RenderFrameHost given its ID and the ID of its render process.
   // Returns NULL if the IDs do not correspond to a live RenderFrameHost.
   static RenderFrameHost* FromID(int render_process_id, int render_frame_id);
 
-  virtual ~RenderFrameHost() {}
+  ~RenderFrameHost() override {}
 
   // Returns the route id for this frame.
   virtual int GetRoutingID() = 0;
 
   // Returns the SiteInstance grouping all RenderFrameHosts that have script
   // access to this RenderFrameHost, and must therefore live in the same
   // process.
   virtual SiteInstance* GetSiteInstance() = 0;
 
   // Returns the process for this frame.
@@ skipping 46 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class RenderFrameHostImpl;
   RenderFrameHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_FRAME_HOST_H_