a testcase and patch coming.
Created attachment 247096 [details] [diff] [review] proposed patch Keeping things simple for now. If dispatching DOMAttrModified shows in profiles, we could add a method to get attr node using PRInt32 and nsIAtom*.
We should "mochify" those tests.
Patch checked in. Testcase needs mochifying.
Comment on attachment 247162 [details] [diff] [review] mochitest Not sure if mochitests need reviews