Put Kiosk App parameters into device settings.

chrome/browser/chromeos/login/user_manager.h

Index: chrome/browser/chromeos/login/user_manager.h
diff --git a/chrome/browser/chromeos/login/user_manager.h b/chrome/browser/chromeos/login/user_manager.h
index 6caecc58a75632025f99517f11308efdfae5b5cd..20b26255dfe5b1c75c671763db78d34e964474ae 100644
--- a/chrome/browser/chromeos/login/user_manager.h
+++ b/chrome/browser/chromeos/login/user_manager.h
@@ -84,6 +84,13 @@ class UserManager {
   // Registers user manager preferences.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
+  // Parses a Kiosk App user ID. Fills in |app_id| and returns true on success.
+  static bool ParseKioskAppUserId(const std::string& user_id,
+                                  std::string* app_id);
+
+  // Formats a Kiosk App user ID for a given |app_id|.
+  static std::string FormatKioskAppUserId(const std::string& app_id);
+
   virtual ~UserManager();
 
   virtual UserImageManager* GetUserImageManager() = 0;