Switch isUserUnlocked/isUserRunning to use UMS.mUserStates

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

Test: manual
Bug: 33232933
Bug: 28957340
Change-Id: Ic5f56d7d577bc336acd2bf44fab7f74feac4f7b3
4 files changed