Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/core/workers/WorkerGlobalScope.cpp

Index: Source/core/workers/WorkerGlobalScope.cpp
diff --git a/Source/core/workers/WorkerGlobalScope.cpp b/Source/core/workers/WorkerGlobalScope.cpp
index a517c8704513d3fd0cbcb0632728b7eb664c560b..111382cdd15f8ceb802602aa605d2256a94e7374 100644
--- a/Source/core/workers/WorkerGlobalScope.cpp
+++ b/Source/core/workers/WorkerGlobalScope.cpp
@@ -56,6 +56,8 @@
 
 namespace WebCore {
 
+DEFINE_GC_INFO(WorkerGlobalScope);
+
 class CloseWorkerGlobalScopeTask : public ExecutionContextTask {
 public:
     static PassOwnPtr<CloseWorkerGlobalScopeTask> create()
@@ -280,4 +282,11 @@ WorkerEventQueue* WorkerGlobalScope::eventQueue() const
     return m_eventQueue.get();
 }
 
+void WorkerGlobalScope::trace(Visitor* visitor)
+{
+    visitor->trace(m_console);
+    visitor->trace(m_location);
+    visitor->trace(m_navigator);
+}
+
 } // namespace WebCore