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

chrome/browser/chromeos/login/existing_user_controller.h

Index: chrome/browser/chromeos/login/existing_user_controller.h
diff --git a/chrome/browser/chromeos/login/existing_user_controller.h b/chrome/browser/chromeos/login/existing_user_controller.h
index 7a2ff11666e38d5d24e74cddcff54bab1092964d..2ddf5d5f17d60ebd8cc1c70ffac8c4edfe2a83f4 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.h
+++ b/chrome/browser/chromeos/login/existing_user_controller.h
@@ -67,9 +67,6 @@ class ExistingUserController : public LoginDisplay::Delegate,
   // Tells the controller to resume a pending login.
   void ResumeLogin();
 
-  // Invoked to prepare for a kiosk app launch attempt.
-  void PrepareKioskAppLaunch();
-
   // Start the public session auto-login timer.
   void StartPublicSessionAutoLoginTimer();
 
@@ -98,6 +95,7 @@ class ExistingUserController : public LoginDisplay::Delegate,
   virtual void SetDisplayEmail(const std::string& email) OVERRIDE;
   virtual void ShowWrongHWIDScreen() OVERRIDE;
   virtual void Signout() OVERRIDE;
+  virtual void LoginAsKioskApp(const std::string& app_id) OVERRIDE;

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

nit: Move it with other LoginAsxxx methods

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

Done.

 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,