Show extension settings for extension notifications

ash/system/web_notification/web_notification_tray.h

 // 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.
 
 #ifndef ASH_SYSTEM_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_
 #define ASH_SYSTEM_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_
 
 #include "ash/ash_export.h"
 #include "ash/system/tray/tray_background_view.h"
 #include "ash/system/user/login_status.h"
@@ skipping 125 matching lines @@
   // Request the Delegate to the settings dialog.
   void ShowSettings(const std::string& id);
 
   // Called when a notification is clicked on. Event is passed to the Delegate.
   void OnClicked(const std::string& id);
 
  private:
   class Bubble;
   friend class internal::WebNotificationButtonView;
   friend class internal::WebNotificationMenuModel;
+  friend class internal::WebNotificationList;
   friend class internal::WebNotificationView;
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotifications);
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotificationBubble);
 
   int GetNotificationCount() const;
   void UpdateTray();
   void UpdateTrayAndBubble();
   void HideBubble(Bubble* bubble);
   bool HasNotificationForTest(const std::string& id) const;
 
   const internal::WebNotificationList* notification_list() const {
     return notification_list_.get();
   }
   Bubble* message_center_bubble() const { return message_center_bubble_.get(); }
   Bubble* notification_bubble() const { return notification_bubble_.get(); }
 
   scoped_ptr<internal::WebNotificationList> notification_list_;
   scoped_ptr<Bubble> message_center_bubble_;
   scoped_ptr<Bubble> notification_bubble_;
   views::Label* count_label_;
   Delegate* delegate_;
   bool show_message_center_on_unlock_;
 
   DISALLOW_COPY_AND_ASSIGN(WebNotificationTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_NOTIFICATION_WEB_NOTIFICATION_TRAY_H_