Merge "Revert "Accept a Window as shown if it's in any transition"" into...

Merge "Revert "Accept a Window as shown if it's in any transition"" into udc-dev am: 2cc23465 am: 24b45f59 am: 0d43df81

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22784152



Change-Id: I294f22c5619beb5f2cd9d155c009604e375a9d66
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>