Add DefaultNetworkChanged signal for ConnectivityStateHelper observers

chrome/browser/chromeos/login/screens/network_screen.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/chromeos/login/screens/network_screen.h"
 
 #include "base/logging.h"
 #include "base/string16.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
@@ skipping 62 matching lines @@
   return WizardController::kNetworkScreenName;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NetworkScreen, ConnectivityStateHelperObserver implementation:
 
 void NetworkScreen::NetworkManagerChanged() {
   UpdateStatus();
 }
 
+void NetworkScreen::DefaultNetworkChanged() {
+  NetworkManagerChanged();
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // NetworkScreen, public:
 
 void NetworkScreen::Refresh() {
   SubscribeNetworkNotification();
   NetworkManagerChanged();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // NetworkScreen, NetworkScreenActor::Delegate implementation:
@@ skipping 93 matching lines @@
   }
 
   network_id_ = network_id;
   if (actor_) {
     actor_->ShowConnectingStatus(continue_pressed_, network_id_);
     actor_->EnableContinue(false);
   }
 }
 
 }  // namespace chromeos