when we don't know how large the download is. r=sspitzer sr=blake git-svn-id: svn://10.0.0.236/trunk@98621 18797224-902f-48f8-a5cc-f745e15eee43
when we don't know how large the download is. r=sspitzer sr=blake git-svn-id: svn://10.0.0.236/trunk@98621 18797224-902f-48f8-a5cc-f745e15eee43