Remove modules/webaudio/MediaElementAudioSourceNode.h dependency from core.

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 28 matching lines @@
 namespace blink {
 class WebContentDecryptionModule;
 class WebInbandTextTrack;
 class WebLayer;
 }
 
 namespace WebCore {
 
 #if ENABLE(WEB_AUDIO)
 class AudioSourceProvider;
-class MediaElementAudioSourceNode;
+class AudioSourceProviderClient;
 #endif
 class ContentType;
 class Event;
 class ExceptionState;
 class HTMLSourceElement;
 class HTMLTrackElement;
 class KURL;
 class MediaController;
 class MediaControls;
 class MediaError;
@@ skipping 188 matching lines @@
     void sourceWasRemoved(HTMLSourceElement*);
     void sourceWasAdded(HTMLSourceElement*);
 
     bool isPlaying() const { return m_playing; }
 
     // ActiveDOMObject functions.
     virtual bool hasPendingActivity() const OVERRIDE FINAL;
     virtual void contextDestroyed() OVERRIDE FINAL;
 
 #if ENABLE(WEB_AUDIO)
-    MediaElementAudioSourceNode* audioSourceNode() { return m_audioSourceNode; }
-    void setAudioSourceNode(MediaElementAudioSourceNode*);
+    AudioSourceProviderClient* audioSourceNode() { return m_audioSourceNode; }
+    void setAudioSourceNode(AudioSourceProviderClient*);
 
     AudioSourceProvider* audioSourceProvider();
 #endif
 
     enum InvalidURLAction { DoNothing, Complain };
     bool isSafeToLoadURL(const KURL&, InvalidURLAction);
 
     MediaController* controller() const;
     void setController(PassRefPtr<MediaController>); // Resets the MediaGroup and sets the MediaController.
 
@@ skipping 235 matching lines @@
     RefPtrWillBeMember<TextTrackList> m_textTracks;
     WillBeHeapVector<RefPtrWillBeMember<TextTrack> > m_textTracksWhenResourceSelectionBegan;
 
     CueIntervalTree m_cueTree;
 
     CueList m_currentlyActiveCues;
     int m_ignoreTrackDisplayUpdate;
 
 #if ENABLE(WEB_AUDIO)
     // This is a weak reference, since m_audioSourceNode holds a reference to us.
-    // The value is set just after the MediaElementAudioSourceNode is created.
-    // The value is cleared in MediaElementAudioSourceNode::~MediaElementAudioSourceNode().
-    MediaElementAudioSourceNode* m_audioSourceNode;
+    AudioSourceProviderClient* m_audioSourceNode;
 #endif
 
     friend class MediaController;
     RefPtr<MediaController> m_mediaController;
 
     friend class Internals;
     friend class TrackDisplayUpdateScope;
 
     static URLRegistry* s_mediaStreamRegistry;
 };
@@ skipping 25 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } //namespace
 
 #endif