Show notification during ARC managed provision
Display a notification during ARC provisioning when the opt-in flow
happens silently (without showing the Terms of Service screen)
due to enterprise policies.
The notification is removed either when provisioning finishes
successfully, or when it fails and some error is displayed.
BUG=700609
BUG=b/35865652
TEST=New unit tests;
Manual test: set up enterprise policies ArcEnabled,
ArcBackupRestoreEnabled, ArcLocationServiceEnabled,
log into a fresh profile, check that the notification about
ARC being installed is shown, and after 1-2 minutes the
notification goes away and Play Store is available.
Review-Url: https://codereview.chromium.org/2745533005
Cr-Commit-Position: refs/heads/master@{#464707}
11 files changed
