Update {virtual,override,final} to follow C++11 style.

android_webview/renderer/aw_render_view_ext.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 ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
 #define ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/timer/timer.h"
@@ skipping 14 matching lines @@
 
 // Render process side of AwRenderViewHostExt, this provides cross-process
 // implementation of miscellaneous WebView functions that we need to poke
 // WebKit directly to implement (and that aren't needed in the chrome app).
 class AwRenderViewExt : public content::RenderViewObserver {
  public:
   static void RenderViewCreated(content::RenderView* render_view);
 
  private:
   AwRenderViewExt(content::RenderView* render_view);
-  virtual ~AwRenderViewExt();
+  ~AwRenderViewExt() override;
 
   // RenderView::Observer:
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
-  virtual void FocusedNodeChanged(const blink::WebNode& node) override;
-  virtual void DidCommitCompositorFrame() override;
-  virtual void DidUpdateLayout() override;
-  virtual void Navigate(const GURL& url) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
+  void FocusedNodeChanged(const blink::WebNode& node) override;
+  void DidCommitCompositorFrame() override;
+  void DidUpdateLayout() override;
+  void Navigate(const GURL& url) override;
 
   void OnDocumentHasImagesRequest(int id);
 
   void OnDoHitTest(const gfx::PointF& touch_center,
                    const gfx::SizeF& touch_area);
 
   void OnSetTextZoomFactor(float zoom_factor);
 
   void OnResetScrollAndScaleState();
 
@@ skipping 11 matching lines @@
 
   gfx::Size last_sent_contents_size_;
   base::OneShotTimer<AwRenderViewExt> check_contents_size_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(AwRenderViewExt);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_