bug 788001 - incorrect spdy assert conditions r=honzab

--HG--
extra : rebase_source : 9e5bc856e2075dc5b497d165e328f6f8667e5493
bug 829120 - spdy could call connection::Activate re-entrantly r=honzab

--HG--
extra : rebase_source : b9df38e82e3bf3cf7a9ba6ff92770e37f03f6977
bug 787158 - nshttpconnection::mtransaction null pointer r=honzab

--HG--
extra : rebase_source : ea0d42da6f78bd8b83415893fc0109a18ecbacc5