Forced cookie removal before sign-in page is shown.

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 "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"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace chromeos {
@@ skipping 40 matching lines @@
   // Let the delegate know about the handler it is supposed to be using.
   virtual void SetWebUIHandler(LoginDisplayWebUIHandler* webui_handler) = 0;
 
  protected:
   virtual ~SigninScreenHandlerDelegate() {}
 };
 
 // A class that handles the WebUI hooks in sign-in screen in OobeDisplay
 // and LoginDisplay.
 class SigninScreenHandler : public BaseScreenHandler,
-                            public LoginDisplayWebUIHandler {
+                            public LoginDisplayWebUIHandler,
+                            public BrowsingDataRemover::Observer {
  public:
   SigninScreenHandler();
   virtual ~SigninScreenHandler();
 
   // Shows the sign in screen. |oobe_ui| indicates whether the signin
   // screen is for OOBE or usual sign-in flow.
   void Show(bool oobe_ui);
 
  private:
   // BaseScreenHandler implementation:
   virtual void GetLocalizedStrings(
       base::DictionaryValue* localized_strings) OVERRIDE;
   virtual void Initialize() OVERRIDE;
 
   // WebUIMessageHandler implementation:
   virtual void RegisterMessages() OVERRIDE;
 
   // BaseLoginUIHandler implementation.
   virtual void ClearAndEnablePassword() OVERRIDE;
   virtual void OnLoginSuccess(const std::string& username) OVERRIDE;
   virtual void OnUserRemoved(const std::string& username) OVERRIDE;
   virtual void ShowError(int login_attempts,
                          const std::string& error_text,
                          const std::string& help_link_text,
                          HelpAppLauncher::HelpTopic help_topic_id) OVERRIDE;
 
+  // BrowsingDataRemover::Observer overrides.
+  virtual void OnBrowsingDataRemoverDone() OVERRIDE;
+
   // Handles confirmation message of user authentication that was performed by
   // the authentication extension.
   void HandleCompleteLogin(const base::ListValue* args);
 
   // Handles get existing user list request when populating account picker.
   void HandleGetUsers(const base::ListValue* args);
 
   // Handles authentication request when signing in an existing user.
   void HandleAuthenticateUser(const base::ListValue* args);
 
@@ skipping 14 matching lines @@
 
   // Handles 'launchHelpApp' request.
   void HandleLaunchHelpApp(const base::ListValue* args);
 
   // Handle 'createAccount' request.
   void HandleCreateAccount(const base::ListValue* args);
 
   // Sends user list to account picker.
   void SendUserList(bool animated);
 
+  // Kick off cookie / local storage cleanup.
+  void StartClearingCookies();
+
   // A delegate that glues this handler with backend LoginDisplay.
   SigninScreenHandlerDelegate* delegate_;
 
   // Whether screen should be shown right after initialization.
   bool show_on_init_;
 
   // Keeps whether screen should be shown for OOBE.
   bool oobe_ui_;
 
   // True if new user sign in flow is driven by the extension.
   bool extension_driven_;
 
+  std::string email_;
   // Help application used for help dialogs.
   scoped_refptr<HelpAppLauncher> help_app_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_