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: I41ec7399280cc9e3b4f6a9234b0f7dee4408d39b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>