Notification should not leak document.

public/web/WebNotification.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 90 matching lines @@
     WEBKIT_EXPORT void dispatchClickEvent();
 
 #if WEBKIT_IMPLEMENTATION
     WebNotification(const WTF::PassRefPtr<WebCore::Notification>&);
     WebNotification& operator=(const WTF::PassRefPtr<WebCore::Notification>&);
     operator WTF::PassRefPtr<WebCore::Notification>() const;
 #endif
 
 private:
     void assign(WebNotificationPrivate*);
-    void dispatchEvent(const WTF::AtomicString& type);
     WebNotificationPrivate* m_private;
 };
 
 inline bool operator==(const WebNotification& a, const WebNotification& b)
 {
     return a.equals(b);
 }
 
 inline bool operator!=(const WebNotification& a, const WebNotification& b)
 {
     return !a.equals(b);
 }
 
 inline bool operator<(const WebNotification& a, const WebNotification& b)
 {
     return a.lessThan(b);
 }
 
 } // namespace WebKit
 
 #endif