Bug 905366: Fix a comment typo by renaming "key" to "cx"
Bug 905366: Fix a comment typo by renaming "key" to "cx"

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