Remove unused MediaControls* in MediaControlToggleClosedCaptionsButtonElement

Source/core/html/shadow/MediaControls.cpp

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011, 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
@@ skipping 102 matching lines @@
     panel->appendChild(muteButton.release(), exceptionState);
     if (exceptionState.hadException())
         return false;
 
     RefPtr<MediaControlVolumeSliderElement> slider = MediaControlVolumeSliderElement::create(document);
     m_volumeSlider = slider.get();
     panel->appendChild(slider.release(), exceptionState);
     if (exceptionState.hadException())
         return false;
 
-    RefPtr<MediaControlToggleClosedCaptionsButtonElement> toggleClosedCaptionsButton = MediaControlToggleClosedCaptionsButtonElement::create(document, this);
+    RefPtr<MediaControlToggleClosedCaptionsButtonElement> toggleClosedCaptionsButton = MediaControlToggleClosedCaptionsButtonElement::create(document);
     m_toggleClosedCaptionsButton = toggleClosedCaptionsButton.get();
     panel->appendChild(toggleClosedCaptionsButton.release(), exceptionState);
     if (exceptionState.hadException())
         return false;
 
     RefPtr<MediaControlFullscreenButtonElement> fullscreenButton = MediaControlFullscreenButtonElement::create(document);
     m_fullScreenButton = fullscreenButton.get();
     panel->appendChild(fullscreenButton.release(), exceptionState);
     if (exceptionState.hadException())
         return false;
@@ skipping 320 matching lines @@
     m_textDisplayContainer->updateDisplay();
 }
 
 void MediaControls::insertTextTrackContainer(PassRefPtr<MediaControlTextTrackContainerElement> textTrackContainer)
 {
     // Insert it before the first controller element so it always displays behind the controls.
     insertBefore(textTrackContainer, m_enclosure);
 }
 
 }