Merge "[DO NOT MERGE] Check caller's uid in backupAgentCreated callback" into udc-dev am: c459131344 am: d457f0a8c1 am: 6f42517d54 am: c349dac816

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

Change-Id: I2e4509b12b16fab8b31060ba696cace8b91e067f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>