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

Source/core/svg/SVGElementInstance.cpp

 /*
  * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * 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.
  *
@@ skipping 214 matching lines @@
 Node* SVGElementInstance::toNode()
 {
     return shadowTreeElement();
 }
 
 Document* SVGElementInstance::ownerDocument() const
 {
     return m_element ? m_element->ownerDocument() : 0;
 }
 
-bool SVGElementInstance::dispatchEvent(PassRefPtr<Event> event)
+bool SVGElementInstance::dispatchEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     SVGElement* element = shadowTreeElement();
     if (!element)
         return false;
 
     return element->dispatchEvent(event);
 }
 
 EventTargetData* SVGElementInstance::eventTargetData()
 {
@@ skipping 16 matching lines @@
         m_targetElement->setInstanceUpdatesBlocked(true);
 }
 
 SVGElementInstance::InstanceUpdateBlocker::~InstanceUpdateBlocker()
 {
     if (m_targetElement)
         m_targetElement->setInstanceUpdatesBlocked(false);
 }
 
 }