Restrict screen saver settings searches to enabled users.

If a user can't enable screen saver, they shouldn't be able to
accidentally find screen saver related settings in Settings.

Bug: 260276394
Test: atest ScreenSaverPreferenceControllerTest
Test: manually by settings up a second user on a device that supports
screen saver, switching to that user, and making sure that searches for
"screen saver" don't accidentally reveal settings that can't be
accessed.

Change-Id: If2f465b2acb548455f0868507cf47217ea1a626f

src/com/android/settings/display/ScreenSaverPreferenceController.java

@@ -35,13 +35,7 @@ public class ScreenSaverPreferenceController extends BasePreferenceController im
 
     @Override
     public int getAvailabilityStatus() {
-        final boolean dreamsSupported = mContext.getResources().getBoolean(
-                com.android.internal.R.bool.config_dreamsSupported);
-        final boolean dreamsOnlyEnabledForDockUser = mContext.getResources().getBoolean(
-                com.android.internal.R.bool.config_dreamsOnlyEnabledForDockUser);
-        return (dreamsSupported && (!dreamsOnlyEnabledForDockUser
-                || Utils.canCurrentUserDream(mContext)))
-                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+        return Utils.areDreamsAvailableToCurrentUser(mContext) ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
     }
 
     @Override