Fix chaining bug.  Cert's trust needs to be set before call to matchUsage.
Fix chaining bug.  Cert's trust needs to be set before call to matchUsage.

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