[cros] Report captive portal message when we suspect that might be the case.

chrome/browser/chromeos/login/existing_user_controller.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_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 41 matching lines @@
 
   // Creates and shows login UI for known users.
   void Init(const UserVector& users);
 
   // Takes ownership of the specified background widget and view.
   void OwnBackground(views::Widget* background_widget,
                      chromeos::BackgroundView* background_view);
 
   // LoginDisplay::Delegate: implementation
   virtual void CreateAccount();
+  virtual void FixCaptivePortal();
   virtual void Login(const std::string& username,
                      const std::string& password);
   virtual void LoginAsGuest();
   virtual void OnUserSelected(const std::string& username);
   virtual void RemoveUser(const std::string& username);
 
   // NotificationObserver implementation.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
@@ skipping 94 matching lines @@
 
   FRIEND_TEST_ALL_PREFIXES(ExistingUserControllerTest, NewUserLogin);
   FRIEND_TEST_ALL_PREFIXES(ExistingUserControllerTest, CreateAccount);
 
   DISALLOW_COPY_AND_ASSIGN(ExistingUserController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_