InsetsController: Maintain type user animation when restarting input

When the IME restarts input, it re-requests to show itself. If the app is
already animating, we should maintain that animation instead of cancelling
it.

Fixes: 155962435
Test: atest WindowInsetsAnimationControllerTests
Change-Id: I57618e43b2cddc55e5dfc32111abbbd82cc6ed48
1 file changed