Synchronize around the certificate depot so we don't get race conditions around the certificate serial.
Synchronize around the certificate depot so we don't get race conditions around the certificate serial.


git-svn-id: 0b34dac3a39d255f46ac888f3fd4ecac3c863f70@174 b2217739-5cbd-4580-87d5-f689c6e5027b

Fingertips/certificate-depot