Simplify adding callbacks.

chrome/browser/ui/webui/chromeos/login/eula_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_EULA_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_EULA_SCREEN_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/chromeos/login/eula_screen_actor.h"
@@ skipping 29 matching lines @@
   // BaseScreenHandler implementation:
   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
   virtual void GetAdditionalParameters(base::DictionaryValue* dict) OVERRIDE;
   virtual void Initialize() OVERRIDE;
 
   // WebUIMessageHandler implementation:
   virtual void RegisterMessages() OVERRIDE;
 
  private:
   // JS messages handlers.
-  void HandleOnExit(const base::ListValue* args);
-  void HandleOnLearnMore(const base::ListValue* args);
-  void HandleOnInstallationSettingsPopupOpened(const base::ListValue* args);
+  void HandleOnExit(bool accepted, bool usager_stats_enabled);
+  void HandleOnLearnMore();
+  void HandleOnInstallationSettingsPopupOpened();
 
   Delegate* delegate_;
 
   // Help application used for help dialogs.
   scoped_refptr<HelpAppLauncher> help_app_;
 
   // Keeps whether screen should be shown right after initialization.
   bool show_on_init_;
 
   DISALLOW_COPY_AND_ASSIGN(EulaScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_EULA_SCREEN_HANDLER_H_