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: 5f91b992 am: b3dfba6a

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

Change-Id: I630b59e705089ce67f603f4c7c467b0104de0c7d