[automerge] Import mobile-data-download code to AOSP. 2p: 540fcb0c91

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/mobile-data-download/+/19105744

Bug: 236694189
Change-Id: Ifa17e065b5d5f1a58c2aef328adfd53698962ca3