Include HTMLMediaElement.h only where needed

Source/modules/webaudio/MediaElementAudioSourceNode.cpp

 /*
  * Copyright (C) 2011, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #if ENABLE(WEB_AUDIO)
 
 #include "modules/webaudio/MediaElementAudioSourceNode.h"
 
+#include "core/html/HTMLMediaElement.h"
 #include "modules/webaudio/AudioContext.h"
 #include "modules/webaudio/AudioNodeOutput.h"
 #include "platform/Logging.h"
 #include "platform/graphics/media/MediaPlayer.h"
 #include "wtf/Locker.h"
 
 // These are somewhat arbitrary limits, but we need to do some kind of sanity-checking.
 const unsigned minSampleRate = 8000;
 const unsigned maxSampleRate = 192000;
 
@@ skipping 102 matching lines @@
 
 void MediaElementAudioSourceNode::unlock()
 {
     m_processLock.unlock();
     deref();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)