[automerger skipped] [DataStore] Provide BackupRestoreFileStorage am: 7c599aa3 -s ours

am skip reason: Merged-In I9ad13305321d0c9f5f6dccc46c266443fd45f73e with SHA-1 50784fe9 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26552863



Change-Id: I318670f5cef0829d1d87611d799d9904e1a89346
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>