Apply DND to visual effects.

Bug: 25423508
Change-Id: I00ace3da8a7fea089f4d0fc3f6161452285abb8e
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index fdc55d7..46d24ae 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -104,6 +104,7 @@
     public static class ZenModeScheduleRuleSettingsActivity extends SettingsActivity { /* empty */ }
     public static class ZenModeEventRuleSettingsActivity extends SettingsActivity { /* empty */ }
     public static class ZenModeExternalRuleSettingsActivity extends SettingsActivity { /* empty */ }
+    public static class ZenModeVisualInterruptionSettingsActivity extends SettingsActivity { /* empty */}
     public static class NotificationSettingsActivity extends SettingsActivity { /* empty */ }
     public static class NotificationAppListActivity extends SettingsActivity { /* empty */ }
     public static class AppNotificationSettingsActivity extends SettingsActivity { /* empty */ }