replace OVERRIDE and FINAL with override and final in media/

media/audio/null_audio_sink.h

Index: media/audio/null_audio_sink.h
diff --git a/media/audio/null_audio_sink.h b/media/audio/null_audio_sink.h
index c28a2cfac06f8af39d507b077feede0ec630f292..6054a95f95e53383fdb8a72f04a4049199673410 100644
--- a/media/audio/null_audio_sink.h
+++ b/media/audio/null_audio_sink.h
@@ -26,12 +26,12 @@ class MEDIA_EXPORT NullAudioSink
 
   // AudioRendererSink implementation.
   virtual void Initialize(const AudioParameters& params,
-                          RenderCallback* callback) OVERRIDE;
-  virtual void Start() OVERRIDE;
-  virtual void Stop() OVERRIDE;
-  virtual void Pause() OVERRIDE;
-  virtual void Play() OVERRIDE;
-  virtual bool SetVolume(double volume) OVERRIDE;
+                          RenderCallback* callback) override;
+  virtual void Start() override;
+  virtual void Stop() override;
+  virtual void Pause() override;
+  virtual void Play() override;
+  virtual bool SetVolume(double volume) override;
 
   // Enables audio frame hashing.  Must be called prior to Initialize().
   void StartAudioHashForTesting();