[cros] Fixes hanging on the OOBE's network screen.

chrome/browser/resources/chromeos/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 134 matching lines @@
   margin: 5px 5px 5px 0;
   padding: 5px 5px 5px 0;
   width: 170px;
 }
 
 .menu-area {
   margin: 5px 5px 5px 5px;
 }
 
 .menu-control {
-  width: 150px;
+  width: 250px;
 }
 
 #connect {
   box-sizing: border-box;
   padding: 60px 0 0 145px;
 }
 
 #logging {
   clear: both;
   margin-top: 20px;
@@ skipping 136 matching lines @@
   bottom: 0;
   display: -webkit-box;
   left: 0;
   padding-bottom: 130px;
   padding: 20px;
   position: fixed;
   right: 0;
   top: 0;
   z-index: 5;
 }