base

Try to dismiss Keyguard bypassing bouncer only for active users

Some bouncers might allow showing keyguards for users that are not
currently active (e.g. before any user is signed in, in which case the
system user is active). Make sure that keyguard is not dismissed
without showing bouncer in these cases.

Change-Id: I0e037b2d4e095d49c1f0d06a9fe1b9a6233421b0
(cherry picked from commit aa69fd417f32435d7d7c06f8d033efa7fa21475a)