Add support for DOM Level 3 WheelEvent

Source/core/dom/EventNames.h

 /*
  * Copyright (C) 2005, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Jon Shier (jshier@iastate.edu)
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 107 matching lines @@
     macro(selectstart) \
     macro(selectionchange) \
     macro(storage) \
     macro(submit) \
     macro(textInput) \
     macro(unload) \
     macro(updateready) \
     macro(upgradeneeded) \
     macro(versionchange) \
     macro(webkitvisibilitychange) \
+    macro(wheel) \
     macro(write) \
     macro(writeend) \
     macro(writestart) \
     macro(zoom) \
     \
     macro(DOMActivate) \
     macro(DOMFocusIn) \
     macro(DOMFocusOut) \
     macro(DOMCharacterDataModified) \
     macro(DOMNodeInserted) \
@@ skipping 185 matching lines @@
     };
 
     inline EventNames& eventNames()
     {
         return threadGlobalData().eventNames();
     }
 
 }
 
 #endif