Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/modules/serviceworkers/ServiceWorkerGlobalScope.h

 /*
  * Copyright (C) 2013 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 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef ServiceWorkerGlobalScope_h
 #define ServiceWorkerGlobalScope_h
 
 #include "bindings/v8/ScriptPromiseResolver.h"
 #include "core/dom/Promise.h"
 #include "core/workers/WorkerGlobalScope.h"
+#include "heap/Handle.h"
 #include "wtf/Assertions.h"
 
 namespace WebCore {
 
 class ServiceWorkerThread;
 struct WorkerThreadStartupData;
 
 class ServiceWorkerGlobalScope FINAL : public WorkerGlobalScope {
 public:
-    static PassRefPtr<ServiceWorkerGlobalScope> create(ServiceWorkerThread*, PassOwnPtr<WorkerThreadStartupData>);
+    static PassRefPtrWillBeRawPtr<ServiceWorkerGlobalScope> create(ServiceWorkerThread*, PassOwnPtr<WorkerThreadStartupData>);
 
     virtual ~ServiceWorkerGlobalScope();
     virtual bool isServiceWorkerGlobalScope() const OVERRIDE { return true; }
 
     // EventTarget
     virtual const AtomicString& interfaceName() const OVERRIDE;
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(install);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(activate);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(fetch);
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     ServiceWorkerGlobalScope(const KURL&, const String& userAgent, ServiceWorkerThread*, double timeOrigin, PassOwnPtr<WorkerClients>);
 };
 
 } // namespace WebCore
 
 #endif // ServiceWorkerGlobalScope_h