separate about page into its own page (included in chrome://chrome)

chrome/browser/ui/webui/options2/chromeos/about_page_handler2.h

-// Copyright (c) 2011 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_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER2_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER2_H_
-
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/ui/webui/options2/options_ui2.h"
-#include "chrome/browser/chromeos/dbus/update_engine_client.h"
-#include "chrome/browser/chromeos/version_loader.h"
-
-namespace chromeos {
-namespace options2 {
-
-// ChromeOS about page UI handler.
-class AboutPageHandler : public ::options2::OptionsPageUIHandler {
-
- public:
-  AboutPageHandler();
-  virtual ~AboutPageHandler();
-
-  // OptionsPageUIHandler implementation.
-  virtual void GetLocalizedValues(
-      base::DictionaryValue* localized_strings) OVERRIDE;
-  virtual void RegisterMessages() OVERRIDE;
-
- private:
-  class UpdateObserver;
-
-  // The function is called from JavaScript when the about page is ready.
-  void PageReady(const base::ListValue* args);
-
-  // The function is called from JavaScript to set the release track like
-  // "beta-channel" and "dev-channel".
-  void SetReleaseTrack(const base::ListValue* args);
-
-  // Initiates update check.
-  void CheckNow(const base::ListValue* args);
-
-  // Restarts the system.
-  void RestartNow(const base::ListValue* args);
-
-  // Callback from VersionLoader giving the version.
-  void OnOSVersion(VersionLoader::Handle handle,
-                   std::string version);
-  void OnOSFirmware(VersionLoader::Handle handle,
-                    std::string firmware);
-  void UpdateStatus(const UpdateEngineClient::Status& status);
-
-  // UpdateEngine Callback handler.
-  static void UpdateSelectedChannel(UpdateObserver* observer,
-                                    const std::string& channel);
-
-  // Handles asynchronously loading the version.
-  VersionLoader loader_;
-
-  // Used to request the version.
-  CancelableRequestConsumer consumer_;
-
-  // Update Observer
-  scoped_ptr<UpdateObserver> update_observer_;
-
-  int progress_;
-  bool sticky_;
-  bool started_;
-
-  DISALLOW_COPY_AND_ASSIGN(AboutPageHandler);
-};
-
-}  // namespace options2
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_ABOUT_PAGE_HANDLER2_H_