Require password to FR in carrier demo mode

Bug: 34341567
Test: manual - password is not required for regular user factory
resets and is required in carrier demo mode.

Change-Id: Ic594ebafdac02fc467dc6b2e46dfbd520db3ce9f

src/com/android/settings/MasterClear.java

@@ -20,6 +20,7 @@ import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.accounts.AuthenticatorDescription;
 import android.app.Activity;
+import android.app.FragmentManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
@@ -46,6 +47,7 @@ import android.widget.ScrollView;
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.widget.CarrierDemoPasswordDialogFragment;
 import com.android.settingslib.RestrictedLockUtils;
 
 import java.util.List;
@@ -62,7 +64,8 @@ import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
  *
  * This is the initial screen.
  */
-public class MasterClear extends OptionsMenuFragment {
+public class MasterClear extends OptionsMenuFragment
+        implements CarrierDemoPasswordDialogFragment.Callback {
     private static final String TAG = "MasterClear";
 
     private static final int KEYGUARD_REQUEST = 55;
@@ -127,12 +130,23 @@ public class MasterClear extends OptionsMenuFragment {
     private final Button.OnClickListener mInitiateListener = new Button.OnClickListener() {
 
         public void onClick(View v) {
-            if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
+            if ( Utils.isCarrierDemoUser(v.getContext())) {
+                // Require the carrier password before displaying the final confirmation.
+                final FragmentManager fm = getChildFragmentManager();
+                if (fm != null && !fm.isDestroyed()) {
+                    new CarrierDemoPasswordDialogFragment().show(fm, null /* tag */);
+                }
+            } else if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
                 showFinalConfirmation();
             }
         }
     };
 
+    @Override
+    public void onPasswordVerified() {
+        showFinalConfirmation();
+    }
+
     /**
      * In its initial state, the activity presents a button for the user to
      * click in order to initiate a confirmation sequence.  This method is