Oilpan: move WorkerThreadStartupData to the oilpan heap.

Source/core/workers/DedicatedWorkerGlobalScope.h

Index: Source/core/workers/DedicatedWorkerGlobalScope.h
diff --git a/Source/core/workers/DedicatedWorkerGlobalScope.h b/Source/core/workers/DedicatedWorkerGlobalScope.h
index 4cfc7f4a5cd5425af30489e78ad5465291929fcb..68f4a2e585bbfa59d45aee2b25ca7d84edcd6153 100644
--- a/Source/core/workers/DedicatedWorkerGlobalScope.h
+++ b/Source/core/workers/DedicatedWorkerGlobalScope.h
@@ -39,12 +39,12 @@
 namespace WebCore {
 
 class DedicatedWorkerThread;
-struct WorkerThreadStartupData;
+class WorkerThreadStartupData;
 
 class DedicatedWorkerGlobalScope FINAL : public WorkerGlobalScope {
 public:
     typedef WorkerGlobalScope Base;
-    static PassRefPtrWillBeRawPtr<DedicatedWorkerGlobalScope> create(DedicatedWorkerThread*, PassOwnPtr<WorkerThreadStartupData>, double timeOrigin);
+    static PassRefPtrWillBeRawPtr<DedicatedWorkerGlobalScope> create(DedicatedWorkerThread*, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData>, double timeOrigin);
     virtual ~DedicatedWorkerGlobalScope();
 
     virtual bool isDedicatedWorkerGlobalScope() const OVERRIDE { return true; }