Changes:
(1) When unified work challenge is enabled and screen lock is secure
- Store work profile secure key in primary profile
- When primary user keystore unlocked, unlock work profile keystore
- When primary user change lock to none, remove work secure key
(2) When unified work challenge is enabled but screen lock is not secure
- When screen lock changes to secure, store work secure key in primary
(3) When user changes work challenge from unified to separated
- Remove work secure key in primary
(4) When user changes work challenge from separate to unified
- Do (1) and (2)
Bug: 27460698
Change-Id: Id7464c178e6ea7b561643477e7cd84f963048c87
Use a retained worker fragment to track the asynchronous
save-and-finish task so that ChoosePattern/Password activity
is properly dismissed after a configuration change.
Bug:23424884
Bug:23521530
Change-Id: I328022c1603cfb0f6812cd8aa7916ae7b72c9950
