Rename HTMLMediaElement::closeCaptionTracksChanged to textTracksChanged

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 328 matching lines @@
 }
 
 void MediaControls::refreshClosedCaptionsButtonVisibility()
 {
     if (mediaElement().hasClosedCaptions())
         m_toggleClosedCaptionsButton->show();
     else
         m_toggleClosedCaptionsButton->hide();
 }
 
-void MediaControls::closedCaptionTracksChanged()
+void MediaControls::textTracksChanged()
 {
     refreshClosedCaptionsButtonVisibility();
 }
 
 void MediaControls::enteredFullscreen()
 {
     m_fullScreenButton->setIsFullscreen(true);
     stopHideMediaControlsTimer();
     startHideMediaControlsTimer();
 }
@@ skipping 132 matching lines @@
     visitor->trace(m_muteButton);
     visitor->trace(m_volumeSlider);
     visitor->trace(m_toggleClosedCaptionsButton);
     visitor->trace(m_fullScreenButton);
     visitor->trace(m_durationDisplay);
     visitor->trace(m_enclosure);
     HTMLDivElement::trace(visitor);
 }
 
 }