kiosk: Show enrollment screen first if needed.

chrome/browser/ui/webui/chromeos/login/base_screen_handler.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_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/bind.h"
@@ skipping 76 matching lines @@
   virtual ~BaseScreenHandler();
 
   // Gets localized strings to be used on the page.
   void GetLocalizedStrings(
       base::DictionaryValue* localized_strings);
 
   // This method is called when page is ready. It propagates to inherited class
   // via virtual Initialize() method (see below).
   void InitializeBase();
 
+  void set_async_assets_load_id(const std::string& async_assets_load_id) {
+    async_assets_load_id_ = async_assets_load_id;
+  }
+  const std::string& async_assets_load_id() const {
+    return async_assets_load_id_;
+  }
+
  protected:
   // All subclasses should implement this method to provide localized values.
   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) = 0;
 
   // Subclasses can override these methods to pass additional parameters
   // to loadTimeData. Generally, it is a bad approach, and it should be replaced
   // with Context at some point.
   virtual void GetAdditionalParameters(base::DictionaryValue* parameters);
 
   // Shortcut for calling JS methods on WebUI side.
@@ skipping 107 matching lines @@
   // Keeps whether page is ready.
   bool page_is_ready_;
 
   base::DictionaryValue* localized_values_;
 
   // Full name of the corresponding JS screen object. Can be empty, if
   // there are no corresponding screen object or several different
   // objects.
   std::string js_screen_path_prefix_;
 
+  // The string id used in the async asset load in JS. If it is set to a
+  // non empty value, the Initialize will be deferred until the underlying load
+  // is finished.
+  std::string async_assets_load_id_;
+
   DISALLOW_COPY_AND_ASSIGN(BaseScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_