Bug 903565: Don't attempt to initialize the socket protocol variant when ssl_NewSocket fails to initialize the socket.
Bug 903565: Don't attempt to initialize the socket protocol variant when
ssl_NewSocket fails to initialize the socket.

r=wtc

nmav/nss,ekr/nss-old,nmav/nss,nmav/nss,ekr/nss-old,nmav/nss,nmav/nss,ekr/nss-old,nmav/nss,ekr/nss-old,ekr/nss-old,ekr/nss-old,ekr/nss-old,nmav/nss