Added ConsumerManagementService class to handle enroll state and device owner info in boot lockbox.

chrome/browser/resources/chromeos/login/screen_gaia_signin.js

 // 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.
 
 /**
  * @fileoverview Oobe signin screen implementation.
  */
 
 <include src="../../gaia_auth_host/gaia_auth_host.js">
 
@@ skipping 202 matching lines @@
 
     /**
      * Event handler that is invoked just before the frame is shown.
      * @param {string} data Screen init payload. Url of auth extension start
      *                      page.
      */
     onBeforeShow: function(data) {
       chrome.send('loginUIStateChanged', ['gaia-signin', true]);
       $('login-header-bar').signinUIState =
           this.isEnrollingConsumerManagement_ ?
-          SIGNIN_UI_STATE.CONSUMER_MANAGEMENT_ENROLLMENT :
-          SIGNIN_UI_STATE.GAIA_SIGNIN;
+              SIGNIN_UI_STATE.CONSUMER_MANAGEMENT_ENROLLMENT :
+              SIGNIN_UI_STATE.GAIA_SIGNIN;
 
       // Ensure that GAIA signin (or loading UI) is actually visible.
       window.requestAnimationFrame(function() {
         chrome.send('loginVisible', ['gaia-loading']);
       });
 
       // Button header is always visible when sign in is presented.
       // Header is hidden once GAIA reports on successful sign in.
       Oobe.getInstance().headerHidden = false;
     },
@@ skipping 76 matching lines @@
       $('guestSignin').hidden = !data.guestSignin;
       $('createSupervisedUserPane').hidden = !data.supervisedUsersEnabled;
 
       $('createSupervisedUserLinkPlaceholder').hidden =
           !data.supervisedUsersCanCreate;
       $('createSupervisedUserNoManagerText').hidden =
           data.supervisedUsersCanCreate;
       $('createSupervisedUserNoManagerText').textContent =
           data.supervisedUsersRestrictionReason;
 
-      $('consumerManagementEnrollment').hidden =
-          !data.isEnrollingConsumerManagement;
+      var isEnrollingConsumerManagement = data.isEnrollingConsumerManagement;
+      $('consumerManagementEnrollment').hidden = !isEnrollingConsumerManagement;
 
       this.isShowUsers_ = data.isShowUsers;
       this.updateCancelButtonState();
 
-      this.isEnrollingConsumerManagement_ = data.isEnrollingConsumerManagement;
+      this.isEnrollingConsumerManagement_ = isEnrollingConsumerManagement;
 
       // Sign-in right panel is hidden if all of its items are hidden.
       var noRightPanel = $('gaia-signin-reason').hidden &&
                          $('createAccount').hidden &&
                          $('guestSignin').hidden &&
                          $('createSupervisedUserPane').hidden &&
                          $('consumerManagementEnrollment').hidden;
       this.classList.toggle('no-right-panel', noRightPanel);
       if (Oobe.getInstance().currentScreen === this)
         Oobe.getInstance().updateScreenSize(this);
@@ skipping 310 matching lines @@
      * For more info see C++ class 'WebUILoginView' which calls this method.
      * @param {number} error Error code.
      * @param {string} url The URL that failed to load.
      */
     onFrameError: function(error, url) {
       this.error_ = error;
       chrome.send('frameLoadingCompleted', [this.error_]);
     },
   };
 });