Merge "Address API feedback for BackupManager#reportDelayedRestoreResult" into udc-dev am: 02bbfca8 am: 11037fec

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21609425



Change-Id: Ibd1205f0aff006c1a1d6f3cce296a3e26f623f59
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>