Oilpan: IDBCursor should be detached from IDBRequest when the IDBRequest stops

Source/bindings/v8/WorkerScriptController.h

Index: Source/bindings/v8/WorkerScriptController.h
diff --git a/Source/bindings/v8/WorkerScriptController.h b/Source/bindings/v8/WorkerScriptController.h
index 5b46cf9ed7c84d6496075c5ef5d121018d0c3ad3..91c5217959012a67d049a8746ab7ce65026c399d 100644
--- a/Source/bindings/v8/WorkerScriptController.h
+++ b/Source/bindings/v8/WorkerScriptController.h
@@ -66,6 +66,8 @@ namespace WebCore {
         explicit WorkerScriptController(WorkerGlobalScope&);
         ~WorkerScriptController();
 
+        void dispose();
+
         WorkerGlobalScope& workerGlobalScope() { return m_workerGlobalScope; }
 
         void evaluate(const ScriptSourceCode&, RefPtr<ErrorEvent>* = 0);