MD Settings: cr-policy-pref-indicator: Eliminate controllingUser

ui/webui/resources/cr_elements/policy/cr_policy_pref_indicator.js

 // 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.
 
 /**
  * @fileoverview Polymer element for indicating policies that apply to an
  * element controlling a settings preference.
  */
 Polymer({
   is: 'cr-policy-pref-indicator',
 
   behaviors: [CrPolicyIndicatorBehavior, CrPolicyPrefBehavior],
 
   properties: {
     /**
      * Optional preference object associated with the indicator. Initialized to
      * null so that computed functions will get called if this is never set.
-     * @type {?chrome.settingsPrivate.PrefObject}
+     * @type {!chrome.settingsPrivate.PrefObject|undefined}
      */
-    pref: {type: Object, value: null},
-
-    /**
-     * Optional email of the user controlling the setting when the setting does
-     * not correspond to a pref (Chrome OS only). Only used when pref is null.
-     * Initialized to '' so that computed functions will get called if this is
-     * never set. TODO(stevenjb/michaelpg): Create a separate indicator for
-     * non-pref (i.e. explicitly set) indicators (see language_detail_page).
-     */
-    controllingUser: {type: String, value: ''},
+    pref: Object,
 
     /**
      * Which indicator type to show (or NONE).
      * @type {CrPolicyIndicatorType}
      */
     indicatorType: {
       type: String,
       value: CrPolicyIndicatorType.NONE,
       computed: 'getIndicatorType(pref.controlledBy, pref.enforcement)',
     },
   },
 
   /**
    * @param {CrPolicyIndicatorType} type
-   * @param {?chrome.settingsPrivate.PrefObject} pref
+   * @param {!chrome.settingsPrivate.PrefObject} pref
    * @return {string} The tooltip text for |type|.
    * @private
    */
-  getTooltip_: function(type, pref, controllingUser) {
+  getTooltip_: function(type, pref) {
     if (type == CrPolicyIndicatorType.RECOMMENDED) {
       if (pref && pref.value == pref.recommendedValue)
         return this.i18n_('controlledSettingRecommendedMatches');
       return this.i18n_('controlledSettingRecommendedDiffers');
     }
-    var name = pref ? pref.controlledByName : controllingUser;
-    return this.getPolicyIndicatorTooltip(type, name);
+    return this.getPolicyIndicatorTooltip(type, pref.controlledByName || '');
   }
 });