It appears that https://android-git.corp.google.com/g/#/c/144795/1 was incorrectly merged down into master. This commit is to correctly add the change from that cl into the master branch. Without this change, if you bring up the emergency dialer while Face Unlock is running, you momentarily see the backup lock. Change-Id: I6350150bf46ac52d5c50c9e88119f09397d22902