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

Source/bindings/v8/custom/V8PopStateEventCustom.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 40 matching lines @@
     v8::Handle<v8::Value> result = info.Holder()->GetHiddenValue(V8HiddenPropertyName::state());
 
     if (!result.IsEmpty()) {
         v8SetReturnValue(info, result);
         return;
     }
 
     PopStateEvent* event = V8PopStateEvent::toNative(info.Holder());
     History* history = event->history();
     if (!history || !event->serializedState()) {
-        v8SetReturnValue(info, cacheState(info.Holder(), v8::Null(info.GetIsolate())));
+        if (!event->serializedState()) {
+            v8::Local<v8::Value> mainWorldState = getHiddenValueFromMainWorldWrapper(info.GetIsolate(), event, V8HiddenPropertyName::state());
+            if (!mainWorldState.IsEmpty())
+                event->setSerializedState(SerializedScriptValue::createSwallowExceptions(mainWorldState, info.GetIsolate()));
+        }
+        if (event->serializedState())
+            result = event->serializedState()->deserialize();
+        else
+            result = v8::Null(info.GetIsolate());
+        v8SetReturnValue(info, cacheState(info.Holder(), result));
         return;
     }
 
     // There's no cached value from a previous invocation, nor a state value was provided by the
     // event, but there is a history object, so first we need to see if the state object has been
     // deserialized through the history object already.
     // The current history state object might've changed in the meantime, so we need to take care
     // of using the correct one, and always share the same deserialization with history.state.
 
     bool isSameState = history->isSameAsCurrentState(event->serializedState());
 
     if (isSameState) {
         v8::Handle<v8::Object> v8History = toV8Fast(history, info, event).As<v8::Object>();
         if (!history->stateChanged()) {
             result = v8History->GetHiddenValue(V8HiddenPropertyName::state());
             if (!result.IsEmpty()) {
                 v8SetReturnValue(info, cacheState(info.Holder(), result));
                 return;
             }
         }
         result = event->serializedState()->deserialize(info.GetIsolate());
         v8History->SetHiddenValue(V8HiddenPropertyName::state(), result);
-    } else
+    } else {
         result = event->serializedState()->deserialize(info.GetIsolate());
+    }
 
     v8SetReturnValue(info, cacheState(info.Holder(), result));
 }
 
 } // namespace WebCore