Support alternate button

Align the behavior of frp and repair to have them
support the alternate button.

Bug: 339735656
Test: presubmit
Change-Id: Ib785db5ef16a68df4980dee451c6b638692adc5f

src/com/android/settings/password/ConfirmDeviceCredentialActivity.java

@@ -239,6 +239,7 @@ public class ConfirmDeviceCredentialActivity extends FragmentActivity {
                     new ChooseLockSettingsHelper.Builder(this);
             launchedCDC = builder.setHeader(mTitle)
                     .setDescription(mDetails)
+                    .setAlternateButton(alternateButton)
                     .setExternal(true)
                     .setUserId(LockPatternUtils.USER_REPAIR_MODE)
                     .show();

src/com/android/settings/password/ConfirmDeviceCredentialBaseFragment.java

@@ -197,8 +197,8 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
         mCancelButton = view.findViewById(R.id.cancelButton);
         boolean showCancelButton = mRemoteValidation || getActivity().getIntent().getBooleanExtra(
                 SHOW_CANCEL_BUTTON, false);
-        boolean hasAlternateButton = (mFrp || mRemoteValidation) && !TextUtils.isEmpty(
-                mAlternateButtonText);
+        boolean hasAlternateButton = (mFrp || mRemoteValidation || mRepairMode)
+                && !TextUtils.isEmpty(mAlternateButtonText);
         mCancelButton.setVisibility(showCancelButton || hasAlternateButton
                 ? View.VISIBLE : View.GONE);
         if (hasAlternateButton) {