Merge "Handle openning transition while animating a pair to home" into udc-dev...

Merge "Handle openning transition while animating a pair to home" into udc-dev am: 032c4d58 am: b3be7baf am: 89cc7b8e am: 10d11df7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23352436



Change-Id: I9bb8d6836fd1d2882cc4683dad8c7b61e45f73ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>