- the switch is now a checkbox
- a dialog is posted to explain the ramifications of
disabling notifications
- the user may no longer disable notifications from system
apps (signed with the system cert); this is roughly the
same as the constraint on disabling packages (with the
exception that launchers may not be disabled entirely, but
their notifications may still be disabled).
Bug: 6493120 (checkbox)
Bug: 6448988 (confirmation dialog & protect system apps)
Change-Id: I6c7a47ba2eb943936d7f59cfc807a4390acc980d
70b5999839