Improve the accessibility of some of the oobe html pages.

chrome/browser/resources/chromeos/login/oobe.css

 /* Copyright (c) 2011 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * This is the stylesheet used by the Out of the box experience (OOBE) flow.
  */
 
 body {
   background: -webkit-gradient(radial, center center, 0, center center, 400,
               from(#fefefe), to(#efefef));
@@ skipping 162 matching lines @@
   display: inline-block;
   width: 360px;
 }
 
 #user-image-list img {
   border-radius: 4px;
   height: 50px;
   margin: 0 10px 8px 0;
   padding: 4px;
   width: 50px;
+  outline: none;

[whywhat, 2011/08/05 07:23:15]

nit: sort properties alphabetically, please

 }
 
 #user-image-list .user-image-selected {
   border: 2px solid rgb(0, 102, 204);
   padding: 2px;
 }
 
 #user-image-preview {
   border-radius: 4px;
   float: right;
@@ skipping 334 matching lines @@
 #version-labels {
   -webkit-transition: all .5s linear;
   bottom: 10px;
   color: #999;
   font-size: 11px;
   left: 10px;
   opacity: 1.0;
   position: absolute;
   text-shadow: 0 1px 1px #fff;
 }