Ignore MediaController in the closed captions button logic

Source/core/html/MediaController.h

 /*
  * Copyright (C) 2011 Apple 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 71 matching lines @@
     typedef HTMLMediaElement::ReadyState ReadyState;
     ReadyState readyState() const { return m_readyState; }
 
     enum PlaybackState { WAITING, PLAYING, ENDED };
     const AtomicString& playbackState() const;
 
     virtual void enterFullscreen() OVERRIDE { }
 
     virtual bool hasAudio() const OVERRIDE;
     virtual bool hasVideo() const OVERRIDE;
-    virtual bool hasClosedCaptions() const OVERRIDE;
-    virtual void setClosedCaptionsVisible(bool) OVERRIDE;
-    virtual bool closedCaptionsVisible() const OVERRIDE { return m_closedCaptionsVisible; }
 
     virtual void beginScrubbing() OVERRIDE;
     virtual void endScrubbing() OVERRIDE;
 
     virtual bool canPlay() const OVERRIDE;
 
     bool isBlocked() const;
 
     void clearExecutionContext() { m_executionContext = 0; }
 
@@ skipping 22 matching lines @@
     bool m_paused;
     double m_defaultPlaybackRate;
     double m_volume;
     mutable double m_position;
     bool m_muted;
     ReadyState m_readyState;
     PlaybackState m_playbackState;
     Vector<RefPtr<Event> > m_pendingEvents;
     Timer<MediaController> m_asyncEventTimer;
     mutable Timer<MediaController> m_clearPositionTimer;
-    bool m_closedCaptionsVisible;
     OwnPtr<Clock> m_clock;
     ExecutionContext* m_executionContext;
     Timer<MediaController> m_timeupdateTimer;
     double m_previousTimeupdateTime;
 };
 
 } // namespace WebCore
 
 #endif