Webkit-box-pack css properties switched to justify-content for oobe screens.

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

 /* Copyright (c) 2012 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.
  */
 
 #password-changed {
   height: 570px;
   /* Screen has no controls but has padding at the last text message */
   padding: 70px 17px 50px;
   width: 485px;
 }
 
 #password-changed-contents {
   color: #606060;
   margin: 20px 60px;
 }
 
 #oobe.password-changed .step-controls {
-  -webkit-box-pack: start;
   -webkit-margin-start: 60px;
+  justify-content: flex-start;
 }
 
 #password-changed-title {
   font-weight: bold;
 }
 
 #password-changed-description,
 #password-changed-more-info {
   margin-top: 25px;
 }
@@ skipping 50 matching lines @@
 #old-password-error {
   color: red;
   display: none;
   font-size: 12px;
   margin-top: 10px;
 }
 
 #password-changed.migrate.password-error #old-password-error {
   display: block;
 }