Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/bindings/v8/WorkerScriptController.cpp

Index: Source/bindings/v8/WorkerScriptController.cpp
diff --git a/Source/bindings/v8/WorkerScriptController.cpp b/Source/bindings/v8/WorkerScriptController.cpp
index acf1941814d3d46b53a38e4756b46556320e5805..19c5fdad2f7a9b2b064122959b4689eb3895d6e9 100644
--- a/Source/bindings/v8/WorkerScriptController.cpp
+++ b/Source/bindings/v8/WorkerScriptController.cpp
@@ -148,7 +148,7 @@ bool WorkerScriptController::initializeContextIfNeeded()
         return false;
     }
 
-    V8DOMWrapper::associateObjectWithWrapper<V8WorkerGlobalScope>(PassRefPtr<WorkerGlobalScope>(m_workerGlobalScope), contextType, jsWorkerGlobalScope, m_isolate, WrapperConfiguration::Dependent);
+    V8DOMWrapper::associateObjectWithWrapper<V8WorkerGlobalScope>(PassRefPtrWillBeRawPtr<WorkerGlobalScope>(&m_workerGlobalScope), contextType, jsWorkerGlobalScope, m_isolate, WrapperConfiguration::Dependent);
 
     // Insert the object instance as the prototype of the shadow object.
     v8::Handle<v8::Object> globalObject = v8::Handle<v8::Object>::Cast(m_perContextData->context()->Global()->GetPrototype());