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

content/browser/android/content_view_render_view.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_BROWSER_ANDROID_CONTENT_VIEW_RENDER_VIEW_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_RENDER_VIEW_H_
 
 #include "base/android/jni_weak_ref.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 29 matching lines @@
                       jint format, jint width, jint height, jobject surface);
   jboolean Composite(JNIEnv* env, jobject obj);
   void SetOverlayVideoMode(JNIEnv* env, jobject obj, bool enabled);
   void SetNeedsComposite(JNIEnv* env, jobject obj);
 
   // TODO(yusufo): Remove this once the compositor code is
   // refactored to use a unified system.
   jlong GetUIResourceProvider(JNIEnv* env, jobject obj);
 
   // CompositorClient implementation
-  virtual void Layout() override;
-  virtual void OnSwapBuffersCompleted(int pending_swap_buffers) override;
+  void Layout() override;
+  void OnSwapBuffersCompleted(int pending_swap_buffers) override;
 
  private:
-  virtual ~ContentViewRenderView();
+  ~ContentViewRenderView() override;
 
   void InitCompositor();
 
   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
 
   scoped_ptr<content::Compositor> compositor_;
 
   gfx::NativeWindow root_window_;
   int current_surface_format_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewRenderView);
 };
 
 
 
 }
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_RENDER_VIEW_H_