Security fix for VPN app killable via lockscreen.

Do not show the active apps dialog when the screen is locked.
Instead prompt the user to unlock directly if clicked and only open the dialog on
successsful unlock.

Flag: NONE
Fix: 304772709
Test: manually, locked and unlocked
Test: atest com.android.systemui.qs.footer.ui.viewmodel.FooterActionsViewModelTest

Change-Id:I384699d478e5abcee3a165afc45211b9ed96334a
3 files changed