[gtk+] assistant: set window title with page title

[William Jon McCann <mccann src gnome org>]

commit 9698d73ade1948934a18c5790712578b9a5a16eb
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 28 22:36:16 2014 -0500

    assistant: set window title with page title
    
    This will set the headerbar title when necessary
    
    https://bugzilla.gnome.org/show_bug.cgi?id=723212

 gtk/gtkassistant.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkassistant.c b/gtk/gtkassistant.c
index 62e530c..80cb199 100644
--- a/gtk/gtkassistant.c
+++ b/gtk/gtkassistant.c
@@ -950,6 +950,8 @@ set_current_page (GtkAssistant *assistant,
 
   update_title_state (assistant);
 
+  gtk_window_set_title (GTK_WINDOW (assistant), priv->current_page->title);
+
   gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->content), page_num);
 
   /* update buttons state, flow may have changed */