Move modules-dependent Event code out of core.

Source/modules/mediastream/MediaStreamEvent.h

 /*
  * 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
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  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
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  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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 #ifndef MediaStreamEvent_h
 #define MediaStreamEvent_h
 
-#include "core/events/Event.h"
+#include "modules/EventModules.h"
 #include "modules/mediastream/MediaStream.h"
 #include "wtf/text/AtomicString.h"
 
 namespace WebCore {
 
 struct MediaStreamEventInit : public EventInit {
     MediaStreamEventInit();
 
     RefPtr<MediaStream> stream;
 };
@@ skipping 17 matching lines @@
     MediaStreamEvent();
     MediaStreamEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<MediaStream>);
     MediaStreamEvent(const AtomicString& type, const MediaStreamEventInit&);
 
     RefPtr<MediaStream> m_stream;
 };
 
 } // namespace WebCore
 
 #endif // MediaStreamEvent_h