Refactor kiosk app launch to be part of login screen UI flow.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h

 // Copyright (c) 2013 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_
 
 #include <set>
 #include <string>
 
@@ skipping 139 matching lines @@
   // Whether user sign in has completed.
   virtual bool IsUserSigninCompleted() const = 0;
 
   // Sets the displayed email for the next login attempt. If it succeeds,
   // user's displayed email value will be updated to |email|.
   virtual void SetDisplayEmail(const std::string& email) = 0;
 
   // Signs out if the screen is currently locked.
   virtual void Signout() = 0;
 
+  // Login to kiosk mode for app with |app_id|.
+  virtual void LoginAsKioskApp(const std::string& app_id) = 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 SystemKeyEventListener::CapsLockObserver,
@@ skipping 150 matching lines @@
   void HandleMigrateUserData(const std::string& password);
   void HandleResyncUserData();
   void HandleLoginUIStateChanged(const std::string& source, bool new_value);
   void HandleUnlockOnLoginSuccess();
   void HandleLoginScreenUpdate();
   void HandleFrameLoadingCompleted(int status);
   void HandleShowLoadingTimeoutError();
   void HandleUpdateOfflineLogin(bool offline_login_active);
   void HandleShowLocallyManagedUserCreationScreen();
   void HandleFocusPod(const std::string& user_id);
+  void HandleLaunchKioskApp(const std::string& app_id);
 
   // Fills |user_dict| with information about |user|.
   static void FillUserDictionary(User* user,
                                  bool is_owner,
                                  DictionaryValue* user_dict);
 
   // Sends user list to account picker.
   void SendUserList(bool animated);
 
   // Kick off cookie / local storage cleanup.
@@ skipping 126 matching lines @@
   // NOTIFICATION_AUTH_NEEDED and reset on either NOTIFICATION_AUTH_SUPPLIED or
   // NOTIFICATION_AUTH_CANCELLED.
   bool has_pending_auth_ui_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_