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

chrome/browser/resources/options/personal_options.js

Index: chrome/browser/resources/options/personal_options.js
diff --git a/chrome/browser/resources/options/personal_options.js b/chrome/browser/resources/options/personal_options.js
index 0c3e19783e6796dca8a28bd02bc7e2c86c872b9e..551c8452ad2e1afd1a7a0084b02cf174f05d060a 100644
--- a/chrome/browser/resources/options/personal_options.js
+++ b/chrome/browser/resources/options/personal_options.js
@@ -107,11 +107,9 @@ cr.define('options', function() {
         Preferences.getInstance().addEventListener(
             'profile.password_manager_enabled',
             function(event) {
-              var managed = event.value && event.value['managed'];
+              var managed = event.value && event.value['disabled'];
               var value = event.value && event.value['value'] != undefined ?
                   event.value['value'] : event.value;
-              $('passwords-offersave').disabled = managed;
-              $('passwords-neversave').disabled = managed;
               $('manage-passwords').disabled = managed && !value;
             });
       }
@@ -128,7 +126,7 @@ cr.define('options', function() {
         Preferences.getInstance().addEventListener(
             'autofill.enabled',
             function(event) {
-              var managed = event.value && event.value['managed'];
+              var managed = event.value && event.value['disabled'];
               var value = event.value && event.value['value'] != undefined ?
                   event.value['value'] : event.value;
               $('autofill-settings').disabled = managed && !value;