Merge "Moving all hierarchy chain to top when adjust focusable task." into...

Merge "Moving all hierarchy chain to top when adjust focusable task." into rvc-dev am: 17efbc62 am: e9ee4b32

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11680555

Change-Id: I277a87b5e963156e09cb17cc8d70b69871e029f4