Make 'any'-typed attributes of events available in isolated worlds

Source/core/dom/PopStateEvent.h

Index: Source/core/dom/PopStateEvent.h
diff --git a/Source/core/dom/PopStateEvent.h b/Source/core/dom/PopStateEvent.h
index cbe4627905420624bad6653467bd8243690ab12b..46f6dd8449f5fe52c5d0660139149f9e92c37461 100644
--- a/Source/core/dom/PopStateEvent.h
+++ b/Source/core/dom/PopStateEvent.h
@@ -31,11 +31,11 @@
 
 namespace WebCore {
 
-typedef EventInit PopStateEventInit;
-
 class History;
 class SerializedScriptValue;
 
+typedef EventInit PopStateEventInit;
+
 class PopStateEvent : public Event {
 public:
     virtual ~PopStateEvent();
@@ -44,6 +44,11 @@ public:
     static PassRefPtr<PopStateEvent> create(const AtomicString&, const PopStateEventInit&);
 
     SerializedScriptValue* serializedState() const { return m_serializedState.get(); }
+    void setSerializedState(PassRefPtr<SerializedScriptValue> state)
+    {
+        ASSERT(!m_serializedState);
+        m_serializedState = state;
+    }
     History* history() const { return m_history.get(); }
 
     virtual const AtomicString& interfaceName() const;