Replace FINAL and OVERRIDE with their C++11 counterparts in content/renderer

content/renderer/media/webaudio_capturer_source.h

Index: content/renderer/media/webaudio_capturer_source.h
diff --git a/content/renderer/media/webaudio_capturer_source.h b/content/renderer/media/webaudio_capturer_source.h
index fdd3f9c68ff3e438d541de3282a350a7b43e6446..6382bd31830768f68e8dde5bd563e32487d9f815 100644
--- a/content/renderer/media/webaudio_capturer_source.h
+++ b/content/renderer/media/webaudio_capturer_source.h
@@ -34,11 +34,11 @@ class WebAudioCapturerSource
 
   // WebAudioDestinationConsumer implementation.
   // setFormat() is called early on, so that we can configure the audio track.
-  virtual void setFormat(size_t number_of_channels, float sample_rate) OVERRIDE;
+  virtual void setFormat(size_t number_of_channels, float sample_rate) override;
   // MediaStreamAudioDestinationNode periodically calls consumeAudio().
   // Called on the WebAudio audio thread.
   virtual void consumeAudio(const blink::WebVector<const float*>& audio_data,
-      size_t number_of_frames) OVERRIDE;
+      size_t number_of_frames) override;
 
   // Called when the WebAudioCapturerSource is hooking to a media audio track.
   // |track| is the sink of the data flow. |source_provider| is the source of