Merge "Fix invalid active window if accessibility framework doesn't track...

Merge "Fix invalid active window if accessibility framework doesn't track windows" into tm-dev am: a7f5aa5b am: 5901d395 am: b63ba12e am: 240f626f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17755779



Change-Id: I27995572a621d1eb6385ac98f66251880c2bbca0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>