ChromeOS login webui refactoring: split user selection/gaia login screens.

chrome/browser/chromeos/login/ui/webui_login_display.h

 // Copyright 2014 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_UI_WEBUI_LOGIN_DISPLAY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_DISPLAY_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/timer/timer.h"
+#include "chrome/browser/chromeos/login/screens/gaia_screen.h"
+#include "chrome/browser/chromeos/login/screens/user_selection_screen.h"
 #include "chrome/browser/chromeos/login/ui/login_display.h"
 #include "chrome/browser/chromeos/login/users/user.h"
 #include "chrome/browser/ui/webui/chromeos/login/native_window_delegate.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/user_activity_observer.h"
 
 namespace chromeos {
 // WebUI-based login UI implementation.
 class WebUILoginDisplay : public LoginDisplay,
                           public NativeWindowDelegate,
                           public SigninScreenHandlerDelegate,
                           public wm::UserActivityObserver {
  public:
   explicit WebUILoginDisplay(LoginDisplay::Delegate* delegate);
   virtual ~WebUILoginDisplay();
 
   // LoginDisplay implementation:
   virtual void ClearAndEnablePassword() OVERRIDE;
   virtual void Init(const UserList& users,
                     bool show_guest,
                     bool show_users,
                     bool show_new_user) OVERRIDE;
   virtual void OnPreferencesChanged() OVERRIDE;
   virtual void OnBeforeUserRemoved(const std::string& username) OVERRIDE;
   virtual void OnUserImageChanged(const User& user) OVERRIDE;
   virtual void OnUserRemoved(const std::string& username) OVERRIDE;
-  virtual void OnFadeOut() OVERRIDE;
-  virtual void OnLoginSuccess(const std::string& username) OVERRIDE;
   virtual void SetUIEnabled(bool is_enabled) OVERRIDE;
-  virtual void SelectPod(int index) OVERRIDE;
   virtual void ShowBannerMessage(const std::string& message) OVERRIDE;
   virtual void ShowUserPodButton(const std::string& username,
                                  const std::string& iconURL,
                                  const base::Closure& click_callback) OVERRIDE;
   virtual void HideUserPodButton(const std::string& username) OVERRIDE;
   virtual void SetAuthType(const std::string& username,
                            AuthType auth_type,
                            const std::string& initial_value) OVERRIDE;
   virtual AuthType GetAuthType(const std::string& username) const OVERRIDE;
   virtual void ShowError(int error_msg_id,
@@ skipping 42 matching lines @@
   virtual void LoginAsKioskApp(const std::string& app_id,
                                bool diagnostic_mode) OVERRIDE;
 
   // wm::UserActivityDetector implementation:
   virtual void OnUserActivity(const ui::Event* event) OVERRIDE;
 
  private:
   void StartPasswordClearTimer();
   void OnPasswordClearTimerExpired();
 
-  // Set of Users that are visible.
-  UserList users_;
-
   // Whether to show guest login.
   bool show_guest_;
 
   // Weather to show the user pods or a GAIA sign in.
   // Public sessions are always shown.
   bool show_users_;
 
   // Whether to show add new user.
   bool show_new_user_;
 
   // Timer for measuring idle state duration before password clear.
   base::OneShotTimer<WebUILoginDisplay> password_clear_timer_;
 
   // Reference to the WebUI handling layer for the login screen
   LoginDisplayWebUIHandler* webui_handler_;
 
+  scoped_ptr<GaiaScreen> gaia_screen_;
+  scoped_ptr<UserSelectionScreen> user_selection_screen_;
+
   DISALLOW_COPY_AND_ASSIGN(WebUILoginDisplay);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_DISPLAY_H_