[gnome-clocks] Add class style titlebar to the headerbar for the csd

[Yosef Or Boczko <yoseforb src gnome org>]

commit c7df5ed96602d33cb97b25664a635f138a4ffd71
Author: Yosef Or Boczko <yoseforb gmail com>
Date:   Thu Aug 15 14:53:33 2013 +0300

    Add class style titlebar to the headerbar for the csd

 data/ui/window.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/window.ui b/data/ui/window.ui
index bba49e5..681b38a 100644
--- a/data/ui/window.ui
+++ b/data/ui/window.ui
@@ -8,6 +8,9 @@
         <property name="visible">True</property>
         <property name="hexpand">True</property>
         <property name="vexpand">False</property>
+        <style>
+          <class name="titlebar"/>
+        </style>
         <child type="title">
           <object class="GtkStackSwitcher" id="stack_switcher">
             <property name="visible">True</property>