Create a NetworkConnect class and Delegate

ash/system/tray/system_tray_notifier.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_TRAY_SYSTEM_TRAY_NOTIFIER_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_NOTIFIER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 124 matching lines @@
   void NotifyOnCaptivePortalDetected(const std::string& service_path);
   void NotifyEnterpriseDomainChanged();
   void NotifyMediaCaptureChanged();
   void NotifyScreenCaptureStart(const base::Closure& stop_callback,
                                 const base::string16& sharing_app_name);
   void NotifyScreenCaptureStop();
   void NotifyScreenShareStart(const base::Closure& stop_callback,
                               const base::string16& helper_name);
   void NotifyScreenShareStop();
   void NotifyLastWindowClosed();
-
-  NetworkStateNotifier* network_state_notifier() {
-    return network_state_notifier_.get();
-  }
 #endif
 
  private:
   ObserverList<AccessibilityObserver> accessibility_observers_;
   ObserverList<AudioObserver> audio_observers_;
   ObserverList<BluetoothObserver> bluetooth_observers_;
   ObserverList<ClockObserver> clock_observers_;
   ObserverList<IMEObserver> ime_observers_;
   ObserverList<LocaleObserver> locale_observers_;
   ObserverList<TracingObserver> tracing_observers_;
   ObserverList<UpdateObserver> update_observers_;
   ObserverList<UserObserver> user_observers_;
 #if defined(OS_CHROMEOS)
   ObserverList<LogoutButtonObserver> logout_button_observers_;
   ObserverList<SessionLengthLimitObserver> session_length_limit_observers_;
   ObserverList<NetworkObserver> network_observers_;
   ObserverList<NetworkPortalDetectorObserver>
       network_portal_detector_observers_;
   ObserverList<EnterpriseDomainObserver> enterprise_domain_observers_;
   ObserverList<MediaCaptureObserver> media_capture_observers_;
   ObserverList<ScreenCaptureObserver> screen_capture_observers_;
   ObserverList<ScreenShareObserver> screen_share_observers_;
   ObserverList<LastWindowClosedObserver> last_window_closed_observers_;
-  scoped_ptr<NetworkStateNotifier> network_state_notifier_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayNotifier);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_NOTIFIER_H_