Fix the DUS Loader item can't be searched.
The preference must be PreferenceControllerMixin or
BasePreferenceController otherwise it can't be searched.
Fixes: 169805654
Test: robotest Settings
Change-Id: I792467f141617ab189e80f9c42b4c58b1c2fa9fe
diff --git a/src/com/android/settings/development/SelectDSUPreferenceController.java b/src/com/android/settings/development/SelectDSUPreferenceController.java
index 6498ae7..425cdb3 100644
--- a/src/com/android/settings/development/SelectDSUPreferenceController.java
+++ b/src/com/android/settings/development/SelectDSUPreferenceController.java
@@ -23,9 +23,11 @@
import androidx.preference.Preference;
import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.development.DeveloperOptionsPreferenceController;
-class SelectDSUPreferenceController extends DeveloperOptionsPreferenceController {
+class SelectDSUPreferenceController extends DeveloperOptionsPreferenceController implements
+ PreferenceControllerMixin {
private static final String DSU_LOADER_KEY = "dsu_loader";