Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/dom/EventTarget.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 22 matching lines @@
 #define EventTarget_h
 
 #include <wtf/Forward.h>
 
 namespace WebCore {
 
     class AtomicString;
     class DOMApplicationCache;
     class Event;
     class EventListener;
+    class EventTargetNode;
     class MessagePort;
-    class Node;
     class ScriptExecutionContext;
     class SVGElementInstance;
     class Worker;
     class WorkerContext;
     class XMLHttpRequest;
     class XMLHttpRequestUpload;
 
     typedef int ExceptionCode;
 
     class EventTarget {
     public:
         virtual MessagePort* toMessagePort();
-        virtual Node* toNode();
+        virtual EventTargetNode* toNode();
         virtual XMLHttpRequest* toXMLHttpRequest();
         virtual XMLHttpRequestUpload* toXMLHttpRequestUpload();
 #if ENABLE(OFFLINE_WEB_APPLICATIONS)
         virtual DOMApplicationCache* toDOMApplicationCache();
 #endif
 #if ENABLE(SVG)
         virtual SVGElementInstance* toSVGElementInstance();
 #endif
 #if ENABLE(WORKERS)
         virtual Worker* toWorker();
@@ skipping 29 matching lines @@
     bool eventDispatchForbidden();
 #else
     inline void forbidEventDispatch() { }
     inline void allowEventDispatch() { }
 #endif
 
 }
 
 #endif