[gnome-chess] Pack the header bar buttons in a vertical size group

[Yosef Or Boczko <yoseforb src gnome org>]

commit cd9c80bae923039d6fff2aa66862d441cfd7a092
Author: Yosef Or Boczko <yoseforb src gnome org>
Date:   Mon Feb 17 12:03:23 2014 +0200

    Pack the header bar buttons in a vertical size group
    
    https://bugzilla.gnome.org/show_bug.cgi?id=724530

 data/gnome-chess.ui |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/data/gnome-chess.ui b/data/gnome-chess.ui
index b25aad3..2ba68de 100644
--- a/data/gnome-chess.ui
+++ b/data/gnome-chess.ui
@@ -348,4 +348,15 @@
       <widget name="right_nav_box"/>
     </widgets>
   </object>
+  <object class="GtkSizeGroup" id="header_bar_buttons_sizegroup">
+    <property name="mode">vertical</property>
+    <widgets>
+      <widget name="new_game_button"/>
+      <widget name="undo_move_button"/>
+      <widget name="pause_button"/>
+      <widget name="gear_button"/>
+      <widget name="save_game_button"/>
+      <widget name="open_game_button"/>
+    </widgets>
+  </object>
 </interface>