bug 850981 - make AppendChild inline around InsertChildAt() r=surkov
bug 850797 - add nsIDocument::IsVisibleConsideringAncestors() r=bz
Bug 850245 - Remove Off-Main-Thread XPCWrappedJS refcounting from DNSListenerProxy. r=mcmanus
Bug 850246 - Remove Off-Main-Thread XPCWrappedJS refcounting from ServerSocketListenerProxy. r=mcmanus