Set appropriate theme for SkipFingerprintDialog

The SkipFingerprintDialog is instantiation in
SetupFingerprintEnrollFindSensor#onSkipButtonClick()

Due to the call flow did not set appropriate theme
defined in setuplib for skip alertDialog instance
we set GlifV2ThemeAlertDialog AlertDialog.Builder.

Test: m RunSettingsRoboTests -j30 ROBOTEST_FILTER= \
      SetupFingerprintEnrollFindSensorTest
Test: manual factory reset, go through SUW, and check
      skip AlertDialog Bottom Bar Buttons visual.
Bug: 233243999
Change-Id: Ic198a23eb3e76d70e287b24f2ab1ef249b30b2fc

src/com/android/settings/biometrics/fingerprint/SetupFingerprintEnrollFindSensor.java

@@ -77,7 +77,7 @@ public class SetupFingerprintEnrollFindSensor extends FingerprintEnrollFindSenso
 
         @NonNull
         public AlertDialog.Builder onCreateDialogBuilder() {
-            return new AlertDialog.Builder(getContext())
+            return new AlertDialog.Builder(getActivity(), R.style.GlifV2ThemeAlertDialog)
                     .setTitle(R.string.setup_fingerprint_enroll_skip_title)
                     .setPositiveButton(R.string.skip_anyway_button_label, this)
                     .setNegativeButton(R.string.go_back_button_label, this)

tests/robotests/src/com/android/settings/biometrics/fingerprint/SetupFingerprintEnrollFindSensorTest.java

@@ -22,7 +22,6 @@ import static org.robolectric.RuntimeEnvironment.application;
 
 import android.content.Intent;
 import android.hardware.fingerprint.FingerprintManager;
-import android.widget.Button;
 
 import androidx.appcompat.app.AlertDialog;
 
@@ -66,6 +65,23 @@ public class SetupFingerprintEnrollFindSensorTest {
 
     @Test
     public void fingerprintEnroll_showsAlert_whenClickingSkip() {
+        final AlertDialog alertDialog = setupAlertDialog();
+        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(
+                alertDialog);
+        final int titleRes = R.string.setup_fingerprint_enroll_skip_title;
+
+        assertThat(application.getString(titleRes)).isEqualTo(shadowAlertDialog.getTitle());
+    }
+
+    @Test
+    public void fingerprintEnroll_showsAlert_setSudTheme() {
+        final AlertDialog alertDialog = setupAlertDialog();
+
+        assertThat(alertDialog.getContext().getThemeResId()).isEqualTo(
+                R.style.GlifV2ThemeAlertDialog);
+    }
+
+    private AlertDialog setupAlertDialog() {
         final Intent intent = new Intent()
                 // Set the challenge token so the confirm screen will not be shown
                 .putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, new byte[0]);
@@ -80,9 +96,6 @@ public class SetupFingerprintEnrollFindSensorTest {
         final AlertDialog alertDialog = ShadowAlertDialogCompat.getLatestAlertDialog();
         assertThat(alertDialog).isNotNull();
 
-        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(
+        return alertDialog;
-                alertDialog);
-        final int titleRes = R.string.setup_fingerprint_enroll_skip_title;
-        assertThat(application.getString(titleRes)).isEqualTo(shadowAlertDialog.getTitle());
     }
 }