Simplify adding callbacks.

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

 // 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.
 
 #include "chrome/browser/ui/webui/chromeos/login/error_screen_handler.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "base/values.h"
@@ skipping 110 matching lines @@
 
 bool ErrorScreenHandler::GetScreenName(OobeUI::Screen screen,
                                        std::string* name) const {
   OobeUI* oobe_ui = static_cast<OobeUI*>(web_ui()->GetController());
   if (!oobe_ui)
     return false;
   *name = oobe_ui->GetScreenName(screen);
   return true;
 }
 
-void ErrorScreenHandler::HandleShowCaptivePortal(const base::ListValue* args) {
+void ErrorScreenHandler::HandleShowCaptivePortal() {
   ShowCaptivePortal();
 }
 
-void ErrorScreenHandler::HandleHideCaptivePortal(const base::ListValue* args) {
+void ErrorScreenHandler::HandleHideCaptivePortal() {
   HideCaptivePortal();
 }
 
 void ErrorScreenHandler::RegisterMessages() {
   AddCallback("showCaptivePortal",
               &ErrorScreenHandler::HandleShowCaptivePortal);
   AddCallback("hideCaptivePortal",
               &ErrorScreenHandler::HandleHideCaptivePortal);
 }
 
@@ skipping 16 matching lines @@
 void ErrorScreenHandler::Initialize() {
   if (!page_is_ready())
     return;
   if (show_on_init_) {
     Show(parent_screen_, NULL);
     show_on_init_ = false;
   }
 }
 
 }  // namespace chromeos