[DO NOT MERGE] Switch to using UMS.mUserStates

UserManager.isUserUnlocked/isUserRunning/isUserUnlockingOrUnlocked now
return state from UMS.mUserStates that is pushed from ActivityManager.

Test: create managed profile using TestDPC and check Launcher3
Test: manually create unstarted managed profile and check launchers
Bug: 33232933
Change-Id: I6b619ba1880188eabdd6e3e4cc7eb60d3a22a977