Revert of Delete mediaPlaybackRequiresUserGesture

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 528 matching lines @@
     mutable double m_cachedTimeWallClockUpdateTime;
     mutable double m_minimumWallClockTimeToCacheMediaTime;
 
     double m_fragmentStartTime;
     double m_fragmentEndTime;
 
     typedef unsigned PendingActionFlags;
     PendingActionFlags m_pendingActionFlags;
 
     // FIXME: MediaElement has way too many state bits.
+    bool m_userGestureRequiredForPlay : 1;
     bool m_playing : 1;
     bool m_shouldDelayLoadEvent : 1;
     bool m_haveFiredLoadedData : 1;
     bool m_active : 1;
     bool m_autoplaying : 1;
     bool m_muted : 1;
     bool m_paused : 1;
     bool m_seeking : 1;
 
     // data has not been loaded since sending a "stalled" event
@@ skipping 66 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } //namespace
 
 #endif