Support for guest signin and new user accounts in gaia signin screen.

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/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 {
 
 // 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;
+ protected:
+  virtual ~LoginDisplayWebUIHandler() {}
 };
 
 // An interface for SigninScreenHandler to call WebUILoginDisplay.
 class SigninScreenHandlerDelegate {
  public:
   // Confirms sign up by provided |username| and |password| specified.
   // Used for new user login via GAIA extension.
   virtual void CompleteLogin(const std::string& username,
                              const std::string& password) = 0;
 
   // Sign in using |username| and |password| specified.
   // Used for both known and new users.
   virtual void Login(const std::string& username,
                      const std::string& password) = 0;
 
   // Sign in into Guest session.
   virtual void LoginAsGuest() = 0;
 
+  // Create a new Google account.
+  virtual void CreateAccount() = 0;
+
   // Attempts to remove given user.
   virtual void RemoveUser(const std::string& username) = 0;
 
   // Shows Enterprise Enrollment screen.
   virtual void ShowEnterpriseEnrollmentScreen() = 0;
 
   // 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:
   SigninScreenHandler();
   virtual ~SigninScreenHandler();
 
@@ skipping 40 matching lines @@
 
   // Handles 'showAddUser' request to show proper sign-in screen.
   void HandleShowAddUser(const base::ListValue* args);
 
   // Handles Enterprise Enrollment screen toggling.
   void HandleToggleEnrollmentScreen(const base::ListValue* args);
 
   // 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);
 
   // 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_;
 
   // 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_