Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webaudio/MediaStreamAudioDestinationNode.h

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
 #include "platform/audio/AudioBus.h"
 #include "modules/mediastream/MediaStream.h"
 #include "modules/webaudio/AudioBasicInspectorNode.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class AudioContext;
 
-class MediaStreamAudioDestinationNode : public AudioBasicInspectorNode {
+class MediaStreamAudioDestinationNode FINAL : public AudioBasicInspectorNode {
 public:
     static PassRefPtr<MediaStreamAudioDestinationNode> create(AudioContext*, size_t numberOfChannels);
 
     virtual ~MediaStreamAudioDestinationNode();
 
     MediaStream* stream() { return m_stream.get(); }
 
     // AudioNode.
-    virtual void process(size_t framesToProcess);
-    virtual void reset();
+    virtual void process(size_t framesToProcess) OVERRIDE;
+    virtual void reset() OVERRIDE;
 
     MediaStreamSource* mediaStreamSource();
 
 private:
     MediaStreamAudioDestinationNode(AudioContext*, size_t numberOfChannels);
 
     virtual double tailTime() const OVERRIDE { return 0; }
     virtual double latencyTime() const OVERRIDE { return 0; }
 
     // As an audio source, we will never propagate silence.
     virtual bool propagatesSilence() const OVERRIDE { return false; }
 
     RefPtr<MediaStream> m_stream;
     RefPtr<MediaStreamSource> m_source;
     RefPtr<AudioBus> m_mixBus;
 };
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)
 
 #endif // MediaStreamAudioDestinationNode_h