Merge "Do not dismiss priority children of a group being dismissed" into udc-dev am: f0d08645

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23785932



Change-Id: Ic41a9af2b5ae297eabfa52e39e9de5b44c51d1de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>