[gnome-control-center] shell: use the "view" style class for the main viewport

[Cosimo Cecchi <cosimoc src gnome org>]

commit 867fff4f4cc68acb40be655db038fe8d1c9272a8
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed Dec 5 09:36:12 2012 -0500

    shell: use the "view" style class for the main viewport
    
    Currently, gnome-themes-standard sets a white background on all
    GtkViewport widgets.
    We want to stop rendering one by default, so add a style class to the
    main viewport that ensures it gets the same background as the icon
    views it packs inside.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689700

 shell/shell.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/shell/shell.ui b/shell/shell.ui
index 60b084c..718cc16 100644
--- a/shell/shell.ui
+++ b/shell/shell.ui
@@ -129,6 +129,9 @@
                     <property name="visible">True</property>
                     <property name="resize_mode">queue</property>
                     <property name="shadow_type">none</property>
+                    <style>
+                      <class name="view" />
+                    </style>
                     <child>
                       <object class="GtkVBox" id="main-vbox">
                         <property name="visible">True</property>