Bug 563826 - Don't accidentally hold on to windows accessed via numeric properties. r=jst

--HG--
extra : rebase_source : 7dda2380711af649c10c9de25c8c331d4c159045

dom/base/nsDOMClassInfo.cpp

@@ -6356,7 +6356,7 @@ nsWindowSH::NewResolve(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
         // child frame. Define a property for this index.
 
         *_retval = ::JS_DefineElement(cx, obj, JSVAL_TO_INT(id), JSVAL_VOID,
-                                      nsnull, nsnull, 0);
+                                      nsnull, nsnull, JSPROP_SHARED);
 
         if (*_retval) {
           *objp = obj;