Rename "managed (mode|user)" to "supervised user" (part 8)

chrome/browser/resources/chromeos/login/screen_gaia_signin.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.
  */
 
 #gaia-signin {
   height: 609px; /* Should be the same as #user-image.loading min-heigth. */
   padding: 70px 17px 69px;    /* Screen has no controls. */
   width: 722px; /* Should be the same as #user-image.loading width. */
 }
@@ skipping 106 matching lines @@
 #enterprise-info-container #enterprise-info {
   display: inline-block;
 }
 
 #gaia-signin .step-contents {
   -webkit-box-pack: center;
   display: -webkit-box;
   height: 100%;
 }
 
-#createManagedUserSeparator {
+#createSupervisedUserSeparator {
   background-color: rgba(128,128,128,0.3);
   height: 1px;
   width: 200px;
 }
 
-#createManagedUserLogo {
+#createSupervisedUserLogo {
   font-weight: bold;
   margin-top: 16px;
 }
 
-#createManagedUserLogo img {
+#createSupervisedUserLogo img {
   vertical-align: text-bottom;
 }
 
-#createManagedUserLogo span {
+#createSupervisedUserLogo span {
   vertical-align: -10%;
 }
 
-#createManagedUserLinkPlaceholder,
-#createManagedUserNoManagerText {
+#createSupervisedUserLinkPlaceholder,
+#createSupervisedUserNoManagerText {
   margin-top: 10px;
 }
 
 #saml-notice-container {
   left: 0;
   position: absolute;
   right: 0;
   text-align: center;
   top: 50px;
 }
 
 #saml-notice-message {
   margin: 0 auto;
 }