Ordinarily, changing the "when" slot when updating a Notification will move its expanded payload to the bottom of the notification panel's list. But if it's already at the bottom, this causes an unsightly out-then-in animation sequence. We now check for that exact situation. Bug: 3222274 Bug: 3162218 Change-Id: I8b643b3f8bce64e57a22bdbb06d92c196c2484c2