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

Merge "Accept a Window as shown if it's in any transition" into udc-dev am: a27edf5a am: e61f1591

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21780005



Change-Id: I62ee9f73a204db280550ad20a7c17e83ef0e3e13
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>