Merge "[DO NOT MERGE] Check caller's uid in backupAgentCreated callback" into udc-dev am: c459131344 am: d457f0a8c1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24308899

Change-Id: I461359530e3eca1ef646e2775bb30e8470f0366e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>