Bug: 7136483
Store device policy information for each user and apply them when user switches.
Global proxy can only be controlled by owner.
Camera restriction applies to all users, if any one has an admin that disables it.
Storage encryption can only be controlled by owner, although other users can query the state.
Wipe data will only remove the user if non-zero, wipe the device, if zero.
Change-Id: I359be46c1bc3828fd13d4be3228f11495081c8f2
The variables mKeyguardDisabled and mAllowDisableKeyguard were
being modified unprotected by mKeyguardTokenWatcher. Fix is to
serialize accesses to these variables by only referencing them
from the same Handler that mKeyguardTokenWatcher uses. Eliminates
synchronization blocks and mKeyguardDisabled variable.
Fixes bug 7045624.
Change-Id: I6355aa393507408296316bee61e178dc81e2a172
