[gtk] cell renderer text: Use standard padding

[Matthias Clasen <matthiasc src gnome org>]

commit a5c2ad18d568b109af1a869f4f0ba68fdcbd6049
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun May 26 20:21:50 2019 -0400

    cell renderer text: Use standard padding

 gtk/gtkcellrenderertext.h | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkcellrenderertext.h b/gtk/gtkcellrenderertext.h
index 54b5741dc9..9a198b2496 100644
--- a/gtk/gtkcellrenderertext.h
+++ b/gtk/gtkcellrenderertext.h
@@ -56,11 +56,9 @@ struct _GtkCellRendererTextClass
                   const gchar         *path,
                   const gchar         *new_text);
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+
+  gpointer padding[8];
 };
 
 GDK_AVAILABLE_IN_ALL