Oilpan: Move ConsoleMessage to the heap.

Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 887 matching lines @@
     dispatchMessageEventWithOriginCheck(timer->targetOrigin(), event, timer->stackTrace());
     m_postMessageTimers.remove(timer);
 }
 
 void LocalDOMWindow::dispatchMessageEventWithOriginCheck(SecurityOrigin* intendedTargetOrigin, PassRefPtrWillBeRawPtr<Event> event, PassRefPtrWillBeRawPtr<ScriptCallStack> stackTrace)
 {
     if (intendedTargetOrigin) {
         // Check target origin now since the target document may have changed since the timer was scheduled.
         if (!intendedTargetOrigin->isSameSchemeHostPort(document()->securityOrigin())) {
             String message = ExceptionMessages::failedToExecute("postMessage", "DOMWindow", "The target origin provided ('" + intendedTargetOrigin->toString() + "') does not match the recipient window's origin ('" + document()->securityOrigin()->toString() + "').");
-            RefPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(SecurityMessageSource, ErrorMessageLevel, message);
+            RefPtrWillBeRawPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(SecurityMessageSource, ErrorMessageLevel, message);
             consoleMessage->setCallStack(stackTrace);
             frameConsole()->addMessage(consoleMessage.release());
             return;
         }
     }
 
     dispatchEvent(event);
 }
 
 DOMSelection* LocalDOMWindow::getSelection()
@@ skipping 1009 matching lines @@
     visitor->trace(m_localStorage);
     visitor->trace(m_applicationCache);
     visitor->trace(m_performance);
     visitor->trace(m_css);
     visitor->trace(m_eventQueue);
     WillBeHeapSupplementable<LocalDOMWindow>::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink