Bring the search icon back in developer page

There're too many settings in developer page,
it could be helpful if we still support it in this page.

Test: Rebuilt apk, and see this page.
Fix: 186207763
Change-Id: If9cd6d4eb25199ee749e4058a635f9f8ce0a49b1

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -60,6 +60,7 @@ import com.android.settings.development.bluetooth.BluetoothSampleRateDialogPrefe
 import com.android.settings.development.qstile.DevelopmentTiles;
 import com.android.settings.development.storage.SharedDataPreferenceController;
 import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settings.search.actionbar.SearchMenuController;
 import com.android.settings.widget.SettingsMainSwitchBar;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.core.lifecycle.Lifecycle;
@@ -174,6 +175,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
+        SearchMenuController.init(this);
         if (Utils.isMonkeyRunning()) {
             getActivity().finish();
             return;