[gtk+] Move gtk_builder_extend_with_template to public header

[Matthias Clasen <matthiasc src gnome org>]

commit c2a9202a66437d4d8ee814c0f1da356c7c289621
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Nov 8 19:19:20 2015 -0500

    Move gtk_builder_extend_with_template to public header
    
    We export the symbol, so we should not hide it in private
    headers.

 gtk/gtkbuilder.h        |    7 +++++++
 gtk/gtkbuilderprivate.h |    6 ------
 2 files changed, 7 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtkbuilder.h b/gtk/gtkbuilder.h
index 9f19fe1..959d7cf 100644
--- a/gtk/gtkbuilder.h
+++ b/gtk/gtkbuilder.h
@@ -226,6 +226,13 @@ GtkApplication * gtk_builder_get_application     (GtkBuilder     *builder);
 #define GTK_BUILDER_WARN_INVALID_CHILD_TYPE(object, type) \
   g_warning ("'%s' is not a valid child type of '%s'", type, g_type_name (G_OBJECT_TYPE (object)))
 
+GDK_AVAILABLE_IN_3_18
+guint     gtk_builder_extend_with_template  (GtkBuilder    *builder,
+                                             GtkWidget     *widget,
+                                             GType          template_type,                                   
                       const gchar   *buffer,
+                                             gsize          length,
+                                             GError       **error);
+
 G_END_DECLS
 
 #endif /* __GTK_BUILDER_H__ */
diff --git a/gtk/gtkbuilderprivate.h b/gtk/gtkbuilderprivate.h
index b2b26fd..6fbf996 100644
--- a/gtk/gtkbuilderprivate.h
+++ b/gtk/gtkbuilderprivate.h
@@ -182,12 +182,6 @@ void      _gtk_builder_menu_start (ParserData   *parser_data,
 void      _gtk_builder_menu_end   (ParserData  *parser_data);
 
 GType     _gtk_builder_get_template_type (GtkBuilder *builder);
-GDK_AVAILABLE_IN_3_18
-guint     gtk_builder_extend_with_template  (GtkBuilder    *builder,
-                                             GtkWidget     *widget,
-                                             GType          template_type,                                   
                       const gchar   *buffer,
-                                             gsize          length,
-                                             GError       **error);
 
 void _gtk_builder_prefix_error            (GtkBuilder           *builder,
                                            GMarkupParseContext  *context,