[gtk] message dialog: Make not subclassable

[Matthias Clasen <matthiasc src gnome org>]

commit 2c9a1f8b6c3bea468410443487455dd02a3f7b85
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun May 19 16:49:45 2019 +0000

    message dialog: Make not subclassable
    
    Part of being more explicit about what
    we allow to be subclassed and what not.

 gtk/gtkmessagedialog.c |  5 +++++
 gtk/gtkmessagedialog.h | 14 --------------
 2 files changed, 5 insertions(+), 14 deletions(-)
---
diff --git a/gtk/gtkmessagedialog.c b/gtk/gtkmessagedialog.c
index 5d9923900c..52d40a784c 100644
--- a/gtk/gtkmessagedialog.c
+++ b/gtk/gtkmessagedialog.c
@@ -106,6 +106,11 @@ typedef struct
   guint          message_type       : 3;
 } GtkMessageDialogPrivate;
 
+struct _GtkMessageDialogClass
+{
+  GtkDialogClass parent_class;
+};
+
 static void gtk_message_dialog_constructed  (GObject          *object);
 static void gtk_message_dialog_set_property (GObject          *object,
                                             guint             prop_id,
diff --git a/gtk/gtkmessagedialog.h b/gtk/gtkmessagedialog.h
index d39132faa3..ddfca46465 100644
--- a/gtk/gtkmessagedialog.h
+++ b/gtk/gtkmessagedialog.h
@@ -37,10 +37,7 @@ G_BEGIN_DECLS
 
 #define GTK_TYPE_MESSAGE_DIALOG                  (gtk_message_dialog_get_type ())
 #define GTK_MESSAGE_DIALOG(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), 
GTK_TYPE_MESSAGE_DIALOG, GtkMessageDialog))
-#define GTK_MESSAGE_DIALOG_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_MESSAGE_DIALOG, 
GtkMessageDialogClass))
 #define GTK_IS_MESSAGE_DIALOG(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), 
GTK_TYPE_MESSAGE_DIALOG))
-#define GTK_IS_MESSAGE_DIALOG_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_MESSAGE_DIALOG))
-#define GTK_MESSAGE_DIALOG_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_MESSAGE_DIALOG, 
GtkMessageDialogClass))
 
 typedef struct _GtkMessageDialog              GtkMessageDialog;
 typedef struct _GtkMessageDialogClass         GtkMessageDialogClass;
@@ -50,17 +47,6 @@ struct _GtkMessageDialog
   GtkDialog parent_instance;
 };
 
-struct _GtkMessageDialogClass
-{
-  GtkDialogClass parent_class;
-
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
-};
-
 /**
  * GtkButtonsType:
  * @GTK_BUTTONS_NONE: no buttons at all