If a secondary user is added to the device and in the middle of SUW, the
SUW process can be killed via ADB. This will cause the process to get
restarted and call StatusBarManager#disable()/disable2(), which uses the
StatusBarManagerService methods that use the current uid.
The fix is to use Binder.getCallingUserHandle() in StatusBarManager so that the
SUW from another user can't affect the current user unless it is
current.
Test: start SUW from new user, cancel set up and go back to primary
user. Kill the SUW process. Nav bars remain un-hidden
Change-Id: Ie6f648827d8d384ae87f74e2d746b7566a7b9011
Fixes: 78360699
172708b539