Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

Source/web/WebDOMEvent.cpp

 /*
  * Copyright (C) 2010 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 38 matching lines @@
 void WebDOMEvent::assign(const WebDOMEvent& other)
 {
     m_private = other.m_private;
 }
 
 void WebDOMEvent::assign(const WTF::PassRefPtr<WebDOMEventPrivate>& event)
 {
     m_private = event;
 }
 
-WebDOMEvent::WebDOMEvent(const WTF::PassRefPtr<WebCore::Event>& event)
+WebDOMEvent::WebDOMEvent(const PassRefPtrWillBeRawPtr<WebCore::Event>& event)
     : m_private(event)
 {
 }
 
-WebDOMEvent::operator WTF::PassRefPtr<WebCore::Event>() const
+WebDOMEvent::operator PassRefPtrWillBeRawPtr<WebCore::Event>() const
 {
     return m_private.get();
 }
 
 WebString WebDOMEvent::type() const
 {
     ASSERT(m_private.get());
     return m_private->type();
 }
 
@@ skipping 117 matching lines @@
     return m_private->hasInterface(WebCore::EventNames::ProgressEvent);
 }
 
 bool WebDOMEvent::isXMLHttpRequestProgressEvent() const
 {
     ASSERT(m_private.get());
     return m_private->hasInterface(WebCore::EventNames::XMLHttpRequestProgressEvent);
 }
 
 } // namespace blink