Apply entity header effect to storage summary screen

use EntityHeaderController.styleActionBar to apply the entity header
effect which will not show shadow under the app bar unless it starts to
scroll.
Bug: 71767969
Test: manual test

Change-Id: Iffd94db956d50b8985cfa5df3886acd3b766fd0c

src/com/android/settings/deviceinfo/StorageDashboardFragment.java

@@ -46,6 +46,7 @@ import com.android.settings.deviceinfo.storage.UserIconLoader;
 import com.android.settings.deviceinfo.storage.VolumeSizesLoader;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.search.Indexable;
+import com.android.settings.widget.EntityHeaderController;
 import com.android.settings.wrapper.UserManagerWrapper;
 import com.android.settingslib.applications.StorageStatsSource;
 import com.android.settingslib.core.AbstractPreferenceController;
@@ -106,6 +107,13 @@ public class StorageDashboardFragment extends DashboardFragment
         super.onViewCreated(v, savedInstanceState);
         initializeCacheProvider();
         maybeSetLoading(isQuotaSupported());
+
+        final Activity activity = getActivity();
+        EntityHeaderController.newInstance(activity, this /*fragment*/,
+                null /* header view */)
+                .setRecyclerView(getListView(), getLifecycle())
+                .styleActionBar(activity);
+
     }
 
     @Override