Merge "[Keyguard Bouncer] Refine entry animation." into tm-qpr-dev am: 4e6255d4 am: f0a80327

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19912813



Change-Id: I0fb98c5ee49d54c65a4d5129441cdb0e54f6a02e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>