android_frameworks_base/packages/SystemUI/proguard.flags

-keep class com.android.systemui.statusbar.tablet.TabletStatusBarService {
  public void notificationIconsClicked(android.view.View);
  public void systemInfoClicked(android.view.View);
  public void recentButtonClicked(android.view.View);
  public void toggleLightsOut(android.view.View);
}