Change base fragment to InstrumentedFragment

- Modify PrivateVolumeForget, PrivateVolumeFormat, PrivateVolumeUnmount
- Add ShadowStorageManager
- Add test cases

Test: manual
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.deviceinfo

Change-Id: I6883dd12cec00abbc3099bf31d285e6fe455eba6

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

@@ -30,10 +30,11 @@ import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
-import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.deviceinfo.StorageSettings.UnmountTask;
+import com.android.settings.search.actionbar.SearchMenuController;
 
-public class PrivateVolumeUnmount extends SettingsPreferenceFragment {
+public class PrivateVolumeUnmount extends InstrumentedFragment {
     private VolumeInfo mVolume;
     private DiskInfo mDisk;
 
@@ -42,6 +43,13 @@ public class PrivateVolumeUnmount extends SettingsPreferenceFragment {
         return MetricsEvent.DEVICEINFO_STORAGE;
     }
 
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        setHasOptionsMenu(true);
+        SearchMenuController.init(this /* host */);
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {