code: @Override
      protected Widget createChild(final GVRContext context,
              GVRSceneObject sceneObjectChild) throws InstantiationException {
          return super.createChild(context, sceneObjectChild);
      }
docs: Create a child {@link Widget} to wrap a {@link GVRSceneObject}. Deriving
  classes can override this method to handle creation of specific Widgets.
  
  @param context
  The current {@link GVRContext}.
  @param sceneObjectChild
  The {@link GVRSceneObject} to wrap.
  @return
  @throws InstantiationException