Merge "Make getAliveUsers() and getUsers() as @TestApi." into udc-dev am:...

Merge "Make getAliveUsers() and getUsers() as @TestApi." into udc-dev am: 7c8d60cd am: 2273659c am: 7016b445

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22995969



Change-Id: Icb06f774e5284d0bbbe41bd201d3ffe1d1643711
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>