Merge "Fix Settings crash"

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        final Context context = getPrefContext();

        mUserManager = context.getSystemService(UserManager.class);

        mFaceManager = context.getSystemService(FaceManager.class);

        mToken = getIntent().getByteArrayExtra(KEY_TOKEN);

        mUserManager = getPrefContext().getSystemService(UserManager.class);

        mFaceManager = getPrefContext().getSystemService(FaceManager.class);

        if (!isAvailable(context)) {

            Log.w(TAG, "no faceManager, finish this");

            finish();

            return;

        }

        mUserId = getActivity().getIntent().getIntExtra(

                Intent.EXTRA_USER_ID, UserHandle.myUserId());