Show Bouncer (Unocclude it) if Activity Dismissing Keyguard is launched
while Keyguard is occluded.

Test: android.server.wm.MultiDisplayLockedKeyguardTests passing without
flakiness (10 passes/10 attempts).
Bug: 156117648

Change-Id: I744c566433614a9de6fec3de9d4e9581472f73cf
1 file changed