MD User Manager: Supervised user checkbox is always displaying

chrome/browser/resources/md_user_manager/create_profile.js

 // Copyright 2016 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 'create-profile' is a page that contains controls for creating
  * a (optionally supervised) profile, including choosing a name, and an avatar.
  */
 (function() {
 /**
- * It means the sentinel menu item is selected.
+ * Sentinel signed-in user's index value.
  * @const {number}
  */
 var NO_USER_SELECTED = -1;
 
 Polymer({
   is: 'create-profile',
 
   behaviors: [
     I18nBehavior,
     WebUIListenerBehavior
@@ skipping 65 matching lines @@
 
     /**
      * Index of the selected signed-in user.
      * @private {number}
      */
     signedInUserIndex_: {
       type: Number,
       value: NO_USER_SELECTED
     },
 
+    /**
+     * Sentinel signed-in user's index value.
+     * @private {number}
+     */
+    sentinelSignedInUserIndex_: {
+      type: Number,
+      value: NO_USER_SELECTED,
+      readOnly: true
+    },
+
     /** @private {!signin.ProfileBrowserProxy} */
     browserProxy_: Object
   },
 
   listeners: {
     'tap': 'onTap_',
     'importUserPopup.import': 'onImportUserPopupImport_'
   },
 
   /** @override */
@@ skipping 11 matching lines @@
       'create-profile-error', this.handleMessage_.bind(this));
     this.addWebUIListener(
       'profile-icons-received', this.handleProfileIcons_.bind(this));
     this.addWebUIListener(
       'profile-defaults-received', this.handleProfileDefaults_.bind(this));
     this.addWebUIListener(
       'signedin-users-received', this.handleSignedInUsers_.bind(this));
 
     this.browserProxy_.getAvailableIcons();
     this.browserProxy_.getSignedInUsers();
-
-    // Alias on 'this' to use in html.
-    this.NO_USER_SELECTED = NO_USER_SELECTED;
   },
 
   /**
-   * Handles tap events from dynamically created links in warning/error messages
-   * pushed by the browser.
+   * Handles tap events from:
+   * - links within dynamic warning/error messages pushed from the browser.
+   * - the 'noSignedInUserMessage' i18n string.
    * @param {!Event} event
    * @private
    */
   onTap_: function(event) {
     var element = Polymer.dom(event).rootTarget;
 
     if (element.id == 'supervised-user-import-existing') {
       this.onImportUserTap_(event);
       event.preventDefault();
+    } else if (element.id == 'sign-in-to-chrome') {
+      this.browserProxy_.openUrlInLastActiveProfileBrowser(element.href);
+      event.preventDefault();
     }
     // TODO(mahmadi): handle tap event on '#reauth' to re-auth the custodian.
   },
 
   /**
    * Handler for when the profile icons are pushed from the browser.
    * @param {!Array<string>} iconUrls
    * @private
    */
   handleProfileIcons_: function(iconUrls) {
@@ skipping 257 matching lines @@
    * Computed binding that returns True if there are any signed-in users.
    * @param {!Array<!SignedInUser>} signedInUsers signed-in users.
    * @return {boolean}
    * @private
    */
   isSignedIn_: function(signedInUsers) {
     return signedInUsers.length > 0;
   }
 });
 }());