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

Source/core/dom/CustomEvent.h

Index: Source/core/dom/CustomEvent.h
diff --git a/Source/core/dom/CustomEvent.h b/Source/core/dom/CustomEvent.h
index 22466bfc4522e35099fdbca5a5dc71a14e5a9a1b..fc7bb111f6aa895ed4dc6d15be1f49d027647f8e 100644
--- a/Source/core/dom/CustomEvent.h
+++ b/Source/core/dom/CustomEvent.h
@@ -26,12 +26,12 @@
 #ifndef CustomEvent_h
 #define CustomEvent_h
 
-#include "bindings/v8/ScriptValue.h"
-#include "bindings/v8/SerializedScriptValue.h"
 #include "core/dom/Event.h"
 
 namespace WebCore {
 
+class SerializedScriptValue;
+
 typedef EventInit CustomEventInit;
 
 class CustomEvent : public Event {
@@ -54,6 +54,12 @@ public:
 
     SerializedScriptValue* serializedScriptValue() { return m_serializedScriptValue.get(); }
 
+    void setSerializedDetail(PassRefPtr<SerializedScriptValue> detail)
+    {
+        ASSERT(!m_serializedScriptValue);
+        m_serializedScriptValue = detail;
+    }
+
 private:
     CustomEvent();
     CustomEvent(const AtomicString& type, const CustomEventInit& initializer);