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

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 6127764871bf72ad64238da0085237b601cbcfd7..d4b37c97c8649b4470c203bf01f54b9a246987c7 100644
--- a/Source/bindings/v8/WorkerScriptController.cpp
+++ b/Source/bindings/v8/WorkerScriptController.cpp
@@ -96,12 +96,15 @@ private:
     v8::Isolate* m_isolate;
 };
 
+void WorkerScriptController::dispose()
+{
+    m_world->dispose();
+}
+
 WorkerScriptController::~WorkerScriptController()
 {
     ThreadState::current()->removeInterruptor(m_interruptor.get());
 
-    m_world->dispose();
-
     // The corresponding call to didStartWorkerRunLoop is in
     // WorkerThread::workerThread().
     // See http://webkit.org/b/83104#c14 for why this is here.