Merge "Implement resize enter animation" into udc-dev am: 460be670 am: 17ab0a3f am: 22e744e7 am: 14ba7a89

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22881925



Change-Id: I7511365ab1c5e883a6c32578a21957c644b440ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>