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

chrome/browser/ui/webui/options/browser_options_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #pragma once
 
 #include "chrome/browser/autocomplete/autocomplete_controller_delegate.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/search_engines/template_url_service_observer.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "ui/base/models/table_model_observer.h"
 
 class AutocompleteController;
 class CustomHomePagesTableModel;
-class OptionsManagedBannerHandler;
 class TemplateURLService;
 
 // Chrome browser options page UI handler.
 class BrowserOptionsHandler : public OptionsPageUIHandler,
                               public AutocompleteControllerDelegate,
                               public ShellIntegration::DefaultWebClientObserver,
                               public TemplateURLServiceObserver,
                               public ui::TableModelObserver {
  public:
   BrowserOptionsHandler();
@@ skipping 89 matching lines @@
   // Used to observe updates to the preference of the list of URLs to load
   // on startup, which can be updated via sync.
   PrefChangeRegistrar pref_change_registrar_;
 
   TemplateURLService* template_url_service_;  // Weak.
 
   // TODO(stuartmorgan): Once there are no other clients of
   // CustomHomePagesTableModel, consider changing it to something more like
   // TemplateURLService.
   scoped_ptr<CustomHomePagesTableModel> startup_custom_pages_table_model_;
-  scoped_ptr<OptionsManagedBannerHandler> banner_handler_;
 
   scoped_ptr<AutocompleteController> autocomplete_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_