So that themes can select for vertical toolbars.
#include "gtkmarshalers.h"
#include "gtkmenu.h"
#include "gtkorientable.h"
+#include "gtkorientableprivate.h"
#include "gtkradiobutton.h"
#include "gtkradiotoolbutton.h"
#include "gtkseparatormenuitem.h"
gtk_toolbar_reconfigured (toolbar);
+ _gtk_orientable_set_style_classes (GTK_ORIENTABLE (toolbar));
gtk_widget_queue_resize (GTK_WIDGET (toolbar));
g_object_notify (G_OBJECT (toolbar), "orientation");
}