Merge "Allow non-empty namespaces in system uid to cancel all jobs" into udc-dev am: 8936f814

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22133473



Change-Id: I56d915cc8c511749be86a71471404e59a9027a8a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>