[gnome-shell] Revert "screenshield: Remove box-shadow"

[Jasper St. Pierre <jstpierre src gnome org>]

commit db14dc973a93a4cfbc3ed05a90671f5bc3b619ac
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sat Apr 20 10:25:44 2013 -0400

    Revert "screenshield: Remove box-shadow"
    
    This reverts commit 98e74dfd38bd44154e002000ed46be4ed622173d.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697274

 data/theme/gnome-shell.css |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index e908592..2705bdd 100644
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -2452,6 +2452,7 @@ StScrollBar StButton#vhandle:active {
 
 .screen-shield-background {
     background: black;
+    box-shadow: 0px 4px 8px rgba(0,0,0,0.9);
 }
 
 #lockDialogGroup {