[gtk] toggle button: Use standard padding

[Matthias Clasen <matthiasc src gnome org>]

commit 6d9bac47b365d9ec7676ac4190fbf3b2649da28f
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 27 04:08:07 2019 +0000

    toggle button: Use standard padding

 gtk/gtktogglebutton.h | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtktogglebutton.h b/gtk/gtktogglebutton.h
index 9f55ade4c3..3879efcd6f 100644
--- a/gtk/gtktogglebutton.h
+++ b/gtk/gtktogglebutton.h
@@ -57,11 +57,9 @@ struct _GtkToggleButtonClass
 
   void (* toggled) (GtkToggleButton *toggle_button);
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+
+  gpointer padding[8];
 };