Move modules-dependent eventtarget code out of core.

Source/modules/mediastream/RTCDTMFSender.h

 /*
  * Copyright (C) 2013 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 @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef RTCDTMFSender_h
 #define RTCDTMFSender_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/dom/ActiveDOMObject.h"
-#include "core/events/EventTarget.h"
+#include "modules/EventTargetModules.h"
 #include "platform/Timer.h"
 #include "public/platform/WebRTCDTMFSenderHandlerClient.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 class WebRTCDTMFSenderHandler;
 class WebRTCPeerConnectionHandler;
 }
 
 namespace WebCore {
@@ skipping 43 matching lines @@
 
     bool m_stopped;
 
     Timer<RTCDTMFSender> m_scheduledEventTimer;
     WillBePersistentHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents;
 };
 
 } // namespace WebCore
 
 #endif // RTCDTMFSender_h