Show a different banner in chrome://settings for extension-controlled settings.

chrome/browser/resources/options/browser_options.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
   const OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
 
   //
   // BrowserOptions class
@@ skipping 204 matching lines @@
     },
 
     /**
      * Returns true if the custom startup page control block should
      * be enabled.
      * @returns {boolean} Whether the startup page controls should be
      *     enabled.
      */
     shouldEnableCustomStartupPageControls: function(pages) {
       return $('startupShowPagesButton').checked &&
-          !this.startup_pages_pref_.managed;
+          !this.startup_pages_pref_.controlledBy;
     },
 
     /**
      * Updates the startup pages list with the given entries.
      * @param {Array} pages List of startup pages.
      * @private
      */
     updateStartupPages_: function(pages) {
       var model = new ArrayDataModel(pages);
       // Add a "new page" row.
@@ skipping 32 matching lines @@
       chrome.send('setHomePage', [homepageField.value, doFixup]);
     },
 
     /**
      * Handle change events of the preference 'homepage'.
      * @param {event} preference changed event.
      * @private
      */
     handleHomepageChange_: function(event) {
       this.homepage_pref_.value = event.value['value'];
-      this.homepage_pref_.managed = event.value['managed'];
-      if (this.isHomepageURLNewTabPageURL_() && !this.homepage_pref_.managed &&
-          !this.homepage_is_newtabpage_pref_.managed) {
+      this.homepage_pref_.controlledBy = event.value['controlledBy'];
+      if (this.isHomepageURLNewTabPageURL_() &&
+          !this.homepage_pref_.controlledBy &&
+          !this.homepage_is_newtabpage_pref_.controlledBy) {
         var useNewTabPage = this.isHomepageIsNewTabPageChoiceSelected_();
         Preferences.setStringPref(this.homepage_pref_.name, '')
         Preferences.setBooleanPref(this.homepage_is_newtabpage_pref_.name,
                                    useNewTabPage)
       }
       this.updateHomepageControlStates_();
     },
 
     /**
      * Handle change events of the preference homepage_is_newtabpage.
      * @param {event} preference changed event.
      * @private
      */
     handleHomepageIsNewTabPageChange_: function(event) {
       this.homepage_is_newtabpage_pref_.value = event.value['value'];
-      this.homepage_is_newtabpage_pref_.managed = event.value['managed'];
+      this.homepage_is_newtabpage_pref_.controlledBy =
+          event.value['controlledBy'];
       this.updateHomepageControlStates_();
     },
 
     /**
      * Update homepage preference UI controls.  Here's a table describing the
      * desired characteristics of the homepage choice radio value, its enabled
      * state and the URL field enabled state. They depend on the values of the
      * managed bits for homepage (m_hp) and homepageIsNewTabPage (m_ntp)
      * preferences, as well as the value of the homepageIsNewTabPage preference
      * (ntp) and whether the homepage preference is equal to the new tab page
@@ skipping 54 matching lines @@
     },
 
     /**
      * Tests whether the Homepage choice "Use New Tab Page" is selected.
      * @returns {boolean} True if "Use New Tab Page" is selected.
      * @private
      */
     isHomepageIsNewTabPageChoiceSelected_: function() {
       return (this.homepage_is_newtabpage_pref_.value ||
               (this.isHomepageURLNewTabPageURL_() &&
-               (this.homepage_pref_.managed ||
-                !this.homepage_is_newtabpage_pref_.managed)));
+               (this.homepage_pref_.controlledBy ||
+                !this.homepage_is_newtabpage_pref_.controlledBy)));
     },
 
     /**
      * Tests whether the home page choice controls are enabled.
      * @returns {boolean} True if the home page choice controls are enabled.
      * @private
      */
     isHomepageChoiceEnabled_: function() {
-      return (!this.homepage_is_newtabpage_pref_.managed &&
-              !(this.homepage_pref_.managed &&
+      return (!this.homepage_is_newtabpage_pref_.controlledBy &&
+              !(this.homepage_pref_.controlledBy &&
                 this.isHomepageURLNewTabPageURL_()));
     },
 
     /**
      * Checks whether the home page field should be enabled.
      * @returns {boolean} True if the home page field should be enabled.
      * @private
      */
     isHomepageURLFieldEnabled_: function() {
       return (!this.homepage_is_newtabpage_pref_.value &&
-              !this.homepage_pref_.managed &&
+              !this.homepage_pref_.controlledBy &&
               !(this.isHomepageURLNewTabPageURL_() &&
-                !this.homepage_is_newtabpage_pref_.managed));
+                !this.homepage_is_newtabpage_pref_.controlledBy));
     },
 
     /**
      * Sets the enabled state of the custom startup page list controls
      * based on the current startup radio button selection.
      * @private
      */
     updateCustomStartupPageControlStates_: function() {
       var disable = !this.shouldEnableCustomStartupPageControls();
       var startupPagesList = $('startupPagesList');
       startupPagesList.disabled = disable;
       // Explicitly set disabled state for input text elements.
       var inputs = startupPagesList.querySelectorAll("input[type='text']");
       for (var i = 0; i < inputs.length; i++)
         inputs[i].disabled = disable;
       $('startupUseCurrentButton').disabled = disable;
     },
 
     /**
      * Handle change events of the preference
      * 'session.urls_to_restore_on_startup'.
      * @param {event} preference changed event.
      * @private
      */
     handleStartupPageListChange_: function(event) {
-      this.startup_pages_pref_.managed = event.value['managed'];
+      this.startup_pages_pref_.controlledBy = event.value['controlledBy'];
       this.updateCustomStartupPageControlStates_();
     },
 
     /**
      * Set the default search engine based on the popup selection.
      */
     setDefaultSearchEngine_: function() {
       var engineSelect = $('defaultSearchEngine');
       var selectedIndex = engineSelect.selectedIndex;
       if (selectedIndex >= 0) {
@@ skipping 51 matching lines @@
   BrowserOptions.updateAutocompleteSuggestions = function(suggestions) {
     BrowserOptions.getInstance().updateAutocompleteSuggestions_(suggestions);
   };
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 
 });