[2/n] Add aspect ratio app list page under apps

Apps > General > Screen Size

To enable feature:
adb shell device_config put window_manager enable_app_compat_user_aspect_ratio_settings true
adb shell am force-stop com.android.settings

Fix: 287448088
Test: Manual
      atest AspectRatioAppsPageProviderTest
      atest AspectRatioUtilsTest
      All CUJs passed in go/settings-cujs
Change-Id: I4de6c3cbdbdfbc79ed839ec149fb633344dcd3a7
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 3efa18f..5249e5a 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -378,6 +378,8 @@
     public static class NotificationAppListActivity extends SettingsActivity { /* empty */ }
     /** Activity to manage Cloned Apps page */
     public static class ClonedAppsListActivity extends SettingsActivity { /* empty */ }
+    /** Activity to manage Aspect Ratio app list page */
+    public static class UserAspectRatioAppListActivity extends SettingsActivity { /* empty */ }
     public static class NotificationReviewPermissionsActivity extends SettingsActivity { /* empty */ }
     public static class AppNotificationSettingsActivity extends SettingsActivity { /* empty */ }
     public static class ChannelNotificationSettingsActivity extends SettingsActivity { /* empty */ }