Oilpan: Prepare to move EventDispatchMediator to Oilpan heap.

Source/core/dom/Node.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, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 606 matching lines @@
 
     // Handlers to do/undo actions on the target node before an event is dispatched to it and after the event
     // has been dispatched.  The data pointer is handed back by the preDispatch and passed to postDispatch.
     virtual void* preDispatchEventHandler(Event*) { return 0; }
     virtual void postDispatchEventHandler(Event*, void* /*dataFromPreDispatch*/) { }
 
     using EventTarget::dispatchEvent;
     virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE;
 
     void dispatchScopedEvent(PassRefPtrWillBeRawPtr<Event>);
-    void dispatchScopedEventDispatchMediator(PassRefPtr<EventDispatchMediator>);
+    void dispatchScopedEventDispatchMediator(PassRefPtrWillBeRawPtr<EventDispatchMediator>);
 
     virtual void handleLocalEvents(Event*);
 
     void dispatchSubtreeModifiedEvent();
     bool dispatchDOMActivateEvent(int detail, PassRefPtrWillBeRawPtr<Event> underlyingEvent);
 
     bool dispatchKeyEvent(const PlatformKeyboardEvent&);
     bool dispatchWheelEvent(const PlatformWheelEvent&);
     bool dispatchMouseEvent(const PlatformMouseEvent&, const AtomicString& eventType, int clickCount = 0, Node* relatedTarget = 0);
     bool dispatchGestureEvent(const PlatformGestureEvent&);
@@ skipping 271 matching lines @@
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const WebCore::Node*);
 void showTree(const WebCore::Node*);
 void showNodePath(const WebCore::Node*);
 #endif
 
 #endif