Simplify adding callbacks.

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

 // 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.
 
 #include "chrome/browser/ui/webui/chromeos/login/terms_of_service_screen_handler.h"
 
 #include "base/values.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ skipping 100 matching lines @@
   // OnLoadError() or the OnLoadSuccess() callback is called.
   if (load_error_) {
     web_ui()->CallJavascriptFunction("cr.ui.Oobe.setTermsOfServiceLoadError");
   } else if (!terms_of_service_.empty()) {
     base::StringValue terms_of_service(terms_of_service_);
     web_ui()->CallJavascriptFunction("cr.ui.Oobe.setTermsOfService",
                                      terms_of_service);
   }
 }
 
-void TermsOfServiceScreenHandler::HandleBack(const base::ListValue* args) {
+void TermsOfServiceScreenHandler::HandleBack() {
   if (screen_)
     screen_->OnDecline();
 }
 
-void TermsOfServiceScreenHandler::HandleAccept(const base::ListValue* args) {
+void TermsOfServiceScreenHandler::HandleAccept() {
   if (!screen_)
     return;
 
   // If the Terms of Service have not been successfully downloaded, the "accept
   // and continue" button should not be accessible. If the user managed to
   // activate it somehow anway, do not treat this as acceptance of the Terms
   // and Conditions and end the session instead, as if the user had declined.
   if (terms_of_service_.empty())
     screen_->OnDecline();
   else
     screen_->OnAccept();
 }
 
 }  // namespace chromeos