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

Merge "Make getAliveUsers() and getUsers() as @TestApi." into udc-dev am: 7c8d60cd am: 5c879d9c am: c7073507 am: 8f4dc4fe

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



Change-Id: I43b5a6a4b1581e73e4f16e4063840ee5e9da6fcf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>