[gnome-shell] userMenu: Handle the case where the user has no icon file

[Adel Gadllah <agadllah src gnome org>]

commit 4ab1e893f06a39bfc089cd87dbb5f15ce549c166
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Mon Feb 11 17:16:44 2013 +0100

    userMenu: Handle the case where the user has no icon file
    
    Fix a crash in UserAvatarWidget.update that gets triggered when the user has
    no icon file.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=693385

 js/ui/userMenu.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/userMenu.js b/js/ui/userMenu.js
index 9bffe67..1196c66 100644
--- a/js/ui/userMenu.js
+++ b/js/ui/userMenu.js
@@ -68,7 +68,7 @@ const UserAvatarWidget = new Lang.Class({
 
     update: function() {
         let iconFile = this._user.get_icon_file();
-        if (!GLib.file_test(iconFile, GLib.FileTest.EXISTS))
+        if (iconFile && !GLib.file_test(iconFile, GLib.FileTest.EXISTS))
             iconFile = null;
 
         if (iconFile) {