Merge "Polish enter PiP animation on back pressed" into tm-qpr-dev am: 955ef184

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19086852



Change-Id: Iad91bdad7f6b444ce0ad12290a6418d04b920eda
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>