Support text track selection in video controls

Source/core/html/HTMLMediaElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 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 192 matching lines @@
     enum VisibilityChangeAssumption {
         AssumeNoVisibleChange,
         AssumeVisibleChange
     };
     void configureTextTrackDisplay(VisibilityChangeAssumption);
     void updateTextTrackDisplay();
     double lastSeekTime() const { return m_lastSeekTime; }
     void textTrackReadyStateChanged(TextTrack*);
 
     void textTrackModeChanged(TextTrack*);
+    void disableAutomaticTextTrackSelection();
 
     // EventTarget function.
     // Both Node (via HTMLElement) and ActiveDOMObject define this method, which
     // causes an ambiguity error at compile time. This class's constructor
     // ensures that both implementations return document, so return the result
     // of one of them here.
     using HTMLElement::executionContext;
 
     bool hasSingleSecurityOrigin() const { return !m_player || (webMediaPlayer() && webMediaPlayer()->hasSingleSecurityOrigin()); }
 
@@ skipping 317 matching lines @@
 
     // time has not changed since sending an "ended" event
     bool m_sentEndEvent : 1;
 
     bool m_closedCaptionsVisible : 1;
 
     bool m_completelyLoaded : 1;
     bool m_havePreparedToPlay : 1;
     bool m_delayingLoadForPreloadNone : 1;
 
+    bool m_didPerformAutomaticTrackSelection : 1;
     bool m_tracksAreReady : 1;
     bool m_haveVisibleTextTrack : 1;
     bool m_processingPreferenceChange : 1;
     bool m_remoteRoutesAvailable : 1;
     bool m_playingRemotely : 1;
 #if ENABLE(OILPAN)
     bool m_isFinalizing : 1;
     bool m_closeMediaSourceWhenFinalizing : 1;
 #endif
     bool m_initialPlayWithoutUserGestures : 1;
@@ skipping 25 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } // namespace blink
 
 #endif // HTMLMediaElement_h