Disallow launch-behind animation if BAL blocks

There's no need to perform the launch-behind animation if the BAL
blocks.

Bug: 460778875
Test: locally verified
Flag: EXEMPT CVE_FIX
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:34bbada3964e240057515958c510ed26f539d527
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:fece5d22e1a9fe302730c60afd3c67f9f9791b64
Merged-In: Iab9bd9fc6ebe7291d2eeec7f697cb877240d1c9e
Change-Id: Iab9bd9fc6ebe7291d2eeec7f697cb877240d1c9e