Add Settings flag for Transform.

Bug: 177299699
Test: manual
Change-Id: I4947117b6bb11678e3ad761204d720354b9e73ae
Merged-In: I4947117b6bb11678e3ad761204d720354b9e73ae

core/java/android/provider/Settings.java

@@ -8522,6 +8522,15 @@ public final class Settings {
         public static final String ONE_HANDED_TUTORIAL_SHOW_COUNT =
                 "one_handed_tutorial_show_count";
 
+        /**
+         * Indicates whether transform is enabled.
+         * <p>
+         * Type: int (0 for false, 1 for true)
+         *
+         * @hide
+         */
+        public static final String TRANSFORM_ENABLED = "transform_enabled";
+
         /**
          * The current night mode that has been selected by the user.  Owned
          * and controlled by UiModeManagerService.  Constants are as per

packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java

@@ -749,7 +749,8 @@ public class SettingsBackupTest {
                  Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_MAGNIFICATION_CONTROLLER,
                  Settings.Secure.SUPPRESS_DOZE,
                  Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED,
-                 Settings.Secure.ACCESSIBILITY_SHOW_WINDOW_MAGNIFICATION_PROMPT);
+                 Settings.Secure.ACCESSIBILITY_SHOW_WINDOW_MAGNIFICATION_PROMPT,
+                 Settings.Secure.TRANSFORM_ENABLED);
 
     @Test
     public void systemSettingsBackedUpOrDenied() {