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

content/renderer/media/android/stream_texture_factory_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_IMPL_H_
 
 #include "content/renderer/media/android/stream_texture_factory.h"
 
 namespace cc {
@@ skipping 11 matching lines @@
 class GpuChannelHost;
 
 class StreamTextureFactoryImpl : public StreamTextureFactory {
  public:
   static scoped_refptr<StreamTextureFactoryImpl> Create(
       const scoped_refptr<cc::ContextProvider>& context_provider,
       GpuChannelHost* channel,
       int frame_id);
 
   // StreamTextureFactory implementation.
-  virtual StreamTextureProxy* CreateProxy() override;
-  virtual void EstablishPeer(int32 stream_id, int player_id) override;
-  virtual unsigned CreateStreamTexture(unsigned texture_target,
-                                       unsigned* texture_id,
-                                       gpu::Mailbox* texture_mailbox) override;
-  virtual void SetStreamTextureSize(int32 texture_id,
-                                    const gfx::Size& size) override;
-  virtual gpu::gles2::GLES2Interface* ContextGL() override;
-  virtual void AddObserver(StreamTextureFactoryContextObserver* obs) override;
-  virtual void RemoveObserver(
-      StreamTextureFactoryContextObserver* obs) override;
+  StreamTextureProxy* CreateProxy() override;
+  void EstablishPeer(int32 stream_id, int player_id) override;
+  unsigned CreateStreamTexture(unsigned texture_target,
+                               unsigned* texture_id,
+                               gpu::Mailbox* texture_mailbox) override;
+  void SetStreamTextureSize(int32 texture_id, const gfx::Size& size) override;
+  gpu::gles2::GLES2Interface* ContextGL() override;
+  void AddObserver(StreamTextureFactoryContextObserver* obs) override;
+  void RemoveObserver(StreamTextureFactoryContextObserver* obs) override;
 
  private:
   friend class base::RefCounted<StreamTextureFactoryImpl>;
   StreamTextureFactoryImpl(
       const scoped_refptr<cc::ContextProvider>& context_provider,
       GpuChannelHost* channel,
       int frame_id);
-  virtual ~StreamTextureFactoryImpl();
+  ~StreamTextureFactoryImpl() override;
 
   scoped_refptr<cc::ContextProvider> context_provider_;
   scoped_refptr<GpuChannelHost> channel_;
   int frame_id_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureFactoryImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_IMPL_H_