Simplify adding callbacks.

chrome/browser/ui/webui/chromeos/login/terms_of_service_screen_handler.h

 // Copyright (c) 2013 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_TERMS_OF_SERVICE_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_TERMS_OF_SERVICE_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/chromeos/login/screens/terms_of_service_screen_actor.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 
-namespace base {
-class ListValue;
-}
-
 namespace chromeos {
 
 // The sole implementation of the TermsOfServiceScreenActor, using WebUI.
 class TermsOfServiceScreenHandler : public BaseScreenHandler,
                                     public TermsOfServiceScreenActor {
  public:
   TermsOfServiceScreenHandler();
   virtual ~TermsOfServiceScreenHandler();
 
   // content::WebUIMessageHandler:
@@ skipping 17 matching lines @@
   // Update the domain name shown in the UI.
   void UpdateDomainInUI();
 
   // Update the UI to show an error message or the Terms of Service, depending
   // on whether the download of the Terms of Service was successful. Does
   // nothing if the download is still in progress.
   void UpdateTermsOfServiceInUI();
 
   // Called when the user declines the Terms of Service by clicking the "back"
   // button.
-  void HandleBack(const base::ListValue* args);
+  void HandleBack();
 
   // Called when the user accepts the Terms of Service by clicking the "accept
   // and continue" button.
-  void HandleAccept(const base::ListValue* args);
+  void HandleAccept();
 
   TermsOfServiceScreenHandler::Delegate* screen_;
 
   // Whether the screen should be shown right after initialization.
   bool show_on_init_;
 
   // The domain name whose Terms of Service are being shown.
   std::string domain_;
 
   // Set to |true| when the download of the Terms of Service fails.
   bool load_error_;
 
   // Set to the Terms of Service when the download is successful.
   std::string terms_of_service_;
 
   DISALLOW_COPY_AND_ASSIGN(TermsOfServiceScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_TERMS_OF_SERVICE_SCREEN_HANDLER_H_