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: 4d48ea00 am: 16e6a491 am: b3c2e049

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



Change-Id: I90e970bed9b3c1eed3adf968ab3443ce804463e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>