Settings to control Add Person and Browse as Guest.

chrome/browser/ui/webui/options/core_options_handler.cc

 // 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.
 
 #include "chrome/browser/ui/webui/options/core_options_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 74 matching lines @@
   Profile* profile = Profile::FromWebUI(web_ui());
 
   plugin_status_pref_setter_.Init(
       profile,
       base::Bind(&CoreOptionsHandler::OnPreferenceChanged,
                  base::Unretained(this),
                  profile->GetPrefs()));
 
   pref_change_filters_[prefs::kMetricsReportingEnabled] =
       base::Bind(&AllowMetricsReportingChange);
+  pref_change_filters_[prefs::kBrowserGuestModeEnabled] =
+      base::Bind(&CoreOptionsHandler::AllowedByUnsupervisedUserOnly,
+                 base::Unretained(this));
+  pref_change_filters_[prefs::kBrowserAddPersonEnabled] =
+      base::Bind(&CoreOptionsHandler::AllowedByUnsupervisedUserOnly,
+                 base::Unretained(this));
 }
 
 void CoreOptionsHandler::InitializePage() {
   UpdateClearPluginLSOData();
   UpdatePepperFlashSettingsEnabled();
 }
 
 void CoreOptionsHandler::GetLocalizedValues(
     base::DictionaryValue* localized_strings) {
   GetStaticLocalizedValues(localized_strings);
@@ skipping 545 matching lines @@
       "OptionsPage.setClearPluginLSODataEnabled", enabled);
 }
 
 void CoreOptionsHandler::UpdatePepperFlashSettingsEnabled() {
   base::FundamentalValue enabled(
           plugin_status_pref_setter_.IsPepperFlashSettingsEnabled());
   web_ui()->CallJavascriptFunction(
       "OptionsPage.setPepperFlashSettingsEnabled", enabled);
 }
 
+bool CoreOptionsHandler::AllowedByUnsupervisedUserOnly(

[Evan Stade, 2014/09/02 18:18:18]

can you just name this "IsUserUnsupervised"

[Mike Lerman, 2014/09/04 14:37:08]

Done.

+    const base::Value* to_value) {
+  return !Profile::FromWebUI(web_ui())->IsSupervised();
+}
+
 }  // namespace options