[gtk+] gtkplacessidebar: add sidebar row style

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 528c576590eacddf9cacb083b06f09fab5f5469f
Author: Carlos Soriano <csoriano gnome org>
Date:   Tue Sep 1 14:27:58 2015 +0200

    gtkplacessidebar: add sidebar row style
    
    So designers can style it at their will.

 gtk/ui/gtksidebarrow.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/ui/gtksidebarrow.ui b/gtk/ui/gtksidebarrow.ui
index 7df6754..67fc446 100644
--- a/gtk/ui/gtksidebarrow.ui
+++ b/gtk/ui/gtksidebarrow.ui
@@ -4,6 +4,9 @@
     <property name="visible">True</property>
     <property name="margin-top">1</property>
     <property name="margin-bottom">1</property>
+    <style>
+      <class name="sidebar-row"/>
+    </style>
     <child>
       <object class="GtkRevealer" id="revealer">
         <property name="visible">True</property>