Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/core/workers/DedicatedWorkerThread.cpp

 /*
  * 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 36 matching lines @@
     : WorkerThread(workerLoaderProxy, workerObjectProxy, startupData)
     , m_workerObjectProxy(workerObjectProxy)
     , m_timeOrigin(timeOrigin)
 {
 }
 
 DedicatedWorkerThread::~DedicatedWorkerThread()
 {
 }
 
-PassRefPtr<WorkerGlobalScope> DedicatedWorkerThread::createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData> startupData)
+PassRefPtrWillBeRawPtr<WorkerGlobalScope> DedicatedWorkerThread::createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData> startupData)
 {
     return DedicatedWorkerGlobalScope::create(this, startupData, m_timeOrigin);
 }
 
 void DedicatedWorkerThread::runEventLoop()
 {
     // Notify the parent object of our current active state before calling the superclass to run the event loop.
     m_workerObjectProxy.reportPendingActivity(workerGlobalScope()->hasPendingActivity());
     WorkerThread::runEventLoop();
 }
 
 } // namespace WebCore