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

chrome/browser/chromeos/login/login_display.h

 // Copyright (c) 2012 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_LOGIN_DISPLAY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 82 matching lines @@
     virtual void ResyncUserData() = 0;
 
     // Sets the displayed email for the next login attempt with |CompleteLogin|.
     // If it succeeds, user's displayed email value will be updated to |email|.
     virtual void SetDisplayEmail(const std::string& email) = 0;
 
     // Sign out the currently signed in user.
     // Used when the lock screen is being displayed.
     virtual void Signout() = 0;
 
+    // Login to kiosk mode for app with |app_id|.
+    virtual void LoginAsKioskApp(const std::string& app_id) = 0;

[xiyuan, 2013/08/19 17:40:29]

nit: move it with other LoginAsxxx methods.

[Tim Song, 2013/08/19 20:05:07]

Done.

+
    protected:
     virtual ~Delegate();
   };
 
   // |background_bounds| determines the bounds of login UI background.
   LoginDisplay(Delegate* delegate, const gfx::Rect& background_bounds);
   virtual ~LoginDisplay();
 
   // Clears and enables fields on user pod or GAIA frame.
   virtual void ClearAndEnablePassword() = 0;
@@ skipping 78 matching lines @@
   // in redesigned login stack.
   // Login stack (and this object) will be recreated for next user sign in.
   bool is_signin_completed_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginDisplay);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_H_