Move logic in UserImageScreen from UserImageScreenHandler

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 77 matching lines @@
   // 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.
   void CallJS(const std::string& method);
   void CallJS(const std::string& method,
               const base::Value& arg1);
   void CallJS(const std::string& method,
+              const std::string& arg1);
+  void CallJS(const std::string& method,
+              int arg1);
+  void CallJS(const std::string& method,
+              bool arg1);
+  void CallJS(const std::string& method,
               const base::Value& arg1,
               const base::Value& arg2);
   void CallJS(const std::string& method,
               const base::Value& arg1,
               const base::Value& arg2,
               const base::Value& arg3);
   void CallJS(const std::string& method,
               const base::Value& arg1,
               const base::Value& arg2,
               const base::Value& arg3,
@@ skipping 69 matching lines @@
   bool page_is_ready_;
 
   base::DictionaryValue* localized_values_;
 
   DISALLOW_COPY_AND_ASSIGN(BaseScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_