Bug: 30681771
Test: SettingsUnitTests
Refactor visibility logging from InstrumentedFragment into a mixin. And
apply mixin in remaining fragments.
Change-Id: Ibbb59904336254a3e4bb9e8c7d0b36e5a6bc2622
show correct backup status after dismissing are-you-sure dialog
for turnning off backup and restore in settings
Change-Id: I31c4106cab58f84b77568356188e5ce49ca3430b
(cherry picked from commit f833588dae)