Updates the style context of widget and all descendants
by updating its widget path. #GtkContainers may want
to use this on a child when reordering it in a way that a different
style might apply to it. See also gtk.container.Container.getPathForChild.
Updates the style context of widget and all descendants by updating its widget path. #GtkContainers may want to use this on a child when reordering it in a way that a different style might apply to it. See also gtk.container.Container.getPathForChild.