commit a6d828755ee306c0e01a078530c22bd83d56f55f
author Annie Meng <anniemeng@google.com> Fri Nov 30 12:09:08 2018 +0000
committer Annie Meng <anniemeng@google.com> Mon Dec 10 12:33:28 2018 +0000
tree 43f9f9ff4f532e50e537846628132c64ae0a91e9
parent 348c897729fef9a4c3d2f522efea0c6946071971

[Multi-user] Create setting for multi-user backup service support

Whether the backup service supports multi-user is now configured in a
Global setting: backup_multi_user_enabled

This allows us to develop multi-user support hidden behind a flag. In a
future CL, we'll also gate the types of users we support.

Also create basic infrastructure for starting the service for a newly
unlocked user (currently a no-op).

Bug: 120212806
Test: 1) atest TrampolineTest
2) adb shell settings put global backup_multi_user_enabled 0;
   unlock system user -> verify service started;
   unlock user 10 -> verify service not started;
3) adb shell settings put global backup_multi_user_enabled 1;
   unlock system user -> verify service started;
   unlock user 10 -> verify service started;

Change-Id: I048e017cfa6148097cebe2eb2916d1b53c53d3b0