[cros,webui] Captive portal on login screen proper handling.

chrome/browser/ui/webui/chromeos/login/signin_screen_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_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/task.h"
 #include "chrome/browser/browsing_data_remover.h"
 #include "chrome/browser/chromeos/login/help_app_launcher.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "content/browser/webui/web_ui.h"
 
 class BrowsingDataRemover;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace chromeos {
 
+class NetworkStateInformer;
+
 // An interface for WebUILoginDisplay to call SigninScreenHandler.
 class LoginDisplayWebUIHandler {
  public:
   virtual void ClearAndEnablePassword() = 0;
   virtual void OnLoginSuccess(const std::string& username) = 0;
   virtual void OnUserRemoved(const std::string& username) = 0;
   virtual void ShowError(int login_attempts,
                          const std::string& error_text,
                          const std::string& help_link_text,
                          HelpAppLauncher::HelpTopic help_topic_id) = 0;
@@ skipping 104 matching lines @@
 
   // Handles 'launchHelpApp' request.
   void HandleLaunchHelpApp(const base::ListValue* args);
 
   // Handle 'createAccount' request.
   void HandleCreateAccount(const base::ListValue* args);
 
   // Handle 'loginWebuiReady' request.
   void HandleLoginWebuiReady(const base::ListValue* args);
 
+  // Handle 'loginRequestNetworkState' request.
+  void HandleLoginRequestNetworkState(const base::ListValue* args);
+
+  // Handle 'loginAddNetworkStateObserver' request.
+  void HandleLoginAddNetworkStateObserver(const base::ListValue* args);
+
+  // Handle 'loginRemoveNetworkStateObserver' request.
+  void HandleLoginRemoveNetworkStateObserver(const base::ListValue* args);
+
   // Sends user list to account picker.
   void SendUserList(bool animated);
 
   // Kick off cookie / local storage cleanup.
   void StartClearingCookies();
 
   // Kick off DNS cache flushing.
   void StartClearingDnsCache();
   void OnDnsCleared();
 
@@ skipping 14 matching lines @@
 
   // True if cookie jar cleanup is done.
   bool cookies_cleared_;
 
   // True if new user sign in flow is driven by the extension.
   bool extension_driven_;
 
   // Help application used for help dialogs.
   scoped_refptr<HelpAppLauncher> help_app_;
 
+  // Network state infromer used to keep offline message screen up.
+  scoped_ptr<NetworkStateInformer> network_state_informer_;
+
   // Email to pre-populate with.
   std::string email_;
 
   // Test credentials.
   std::string test_user_;
   std::string test_pass_;
 
   BrowsingDataRemover* cookie_remover_;
 
   ScopedRunnableMethodFactory<SigninScreenHandler> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_