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

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



Change-Id: If9521bd7d8ea49c825baaed843a643f4b55836d4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>