[gtk+] docs: add keys_changed signal to GtkWindowClass

[William Jon McCann <mccann src gnome org>]

commit f49e077c27d7065e63e92f4cf1a2c9eecd6b0b27
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 10:40:52 2014 -0500

    docs: add keys_changed signal to GtkWindowClass

 gtk/gtkwindow.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwindow.h b/gtk/gtkwindow.h
index 426970e..dce09f1 100644
--- a/gtk/gtkwindow.h
+++ b/gtk/gtkwindow.h
@@ -63,6 +63,8 @@ struct _GtkWindow
  * @set_focus: Sets child as the focus widget for the window.
  * @activate_focus: Activates the current focused widget within the window.
  * @activate_default: Activates the default widget for the window.
+ * @keys_changed: Signal gets emitted when the set of accelerators or
+ *   mnemonics that are associated with window changes.
  */
 struct _GtkWindowClass
 {