user-accounts: Move gdm-languages to common/

Move gdm-languages and some of the helper functions to common/,
so that we can share it with the region panel.

panels/common/cc-common-language.h

@@ -0,0 +1,47 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2009-2010  Red Hat, Inc,
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Written by: Matthias Clasen <mclasen@redhat.com>
+ */
+
+#ifndef __CC_COMMON_LANGUAGE_H__
+#define __CC_COMMON_LANGUAGE_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#if 0
+void              um_add_user_languages       (GtkTreeModel     *model);
+gchar            *um_get_current_language     (void);
+gboolean          um_get_iter_for_language    (GtkTreeModel     *model,
+                                               const gchar      *lang,
+                                               GtkTreeIter      *iter);
+
+GtkWidget        *um_language_chooser_new          (void);
+gchar            *um_language_chooser_get_language (GtkWidget *chooser);
+#endif
+
+gint cc_common_language_sort_languages (GtkTreeModel *model,
+					GtkTreeIter  *a,
+					GtkTreeIter  *b,
+					gpointer      data);
+
+G_END_DECLS
+
+#endif