[FRP] Theme interstitials for lock screen setup

Use the setup wizard theme for EncryptionInterstital and
RedactionInterstitial as they will show during the lock screen setup
as part of setup wizard.

Bug: 18482708
Change-Id: I65c8924952345a4e17fcf4ffb7d68df53244c5d7

src/com/android/settings/SetupChooseLockGeneric.java

@@ -28,6 +28,13 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
 
+/**
+ * Setup Wizard's version of ChooseLockGeneric screen. It inherits the logic and basic structure
+ * from ChooseLockGeneric class, and should remain similar to that behaviorally. This class should
+ * only overload base methods for minor theme and behavior differences specific to Setup Wizard.
+ * Other changes should be done to ChooseLockGeneric class instead and let this class inherit
+ * those changes.
+ */
 public class SetupChooseLockGeneric extends ChooseLockGeneric
         implements SetupWizardNavBar.NavigationBarListener {
 
@@ -101,5 +108,14 @@ public class SetupChooseLockGeneric extends ChooseLockGeneric
             SetupWizardUtils.copySetupExtras(getActivity().getIntent(), intent);
             return intent;
         }
+
+        @Override
+        protected Intent getEncryptionInterstitialIntent(Context context, int quality,
+                boolean required) {
+            Intent intent = SetupEncryptionInterstitial.createStartIntent(context, quality,
+                    required);
+            SetupWizardUtils.copySetupExtras(getActivity().getIntent(), intent);
+            return intent;
+        }
     }
 }