Bug 193367: do not call PR_Now() in a loop.  r=nelsonb.
Bug 193367: do not call PR_Now() in a loop.  r=nelsonb.

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