ChromeOS Gaia: UI polishing

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

 /* Copyright 2015 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.
  */
 
 #oauth-enrollment {
-  height: 609px;
+  height: 528px;
   padding: 0;
-  width: 522px;
+  width: 448px;
 }
 
 #oauth-enrollment.saml {
   height: 528px;
   width: 562px;
 }
 
 #oauth-enroll-step-contents {
   color: #666;
   height: 100%;
@@ skipping 172 matching lines @@
   border-color: black;
   font-size: 16px;
   position: relative;
   width: 250px;
 }
 
 .oauth-enroll-textbox.auth-enroll-attribute-label {
   display: inline;
   position: relative;
 }