Mojo-ifying chrome://version.

chrome/browser/ui/webui/version_handler_chromeos.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_VERSION_HANDLER_CHROMEOS_H_
-#define CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_
-
-#include <string>
-
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/ui/webui/version_handler.h"
-#include "chromeos/system/version_loader.h"
-
-// VersionHandlerChromeOS is responsible for loading the Chrome OS
-// version.
-class VersionHandlerChromeOS : public VersionHandler {
- public:
-  VersionHandlerChromeOS();
-  ~VersionHandlerChromeOS() override;
-
-  // VersionHandler overrides:
-  void HandleRequestVersionInfo(const base::ListValue* args) override;
-
-  // Callback from chromeos::VersionLoader giving the version.
-  void OnVersion(const std::string& version);
-
- private:
-  base::WeakPtrFactory<VersionHandlerChromeOS> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(VersionHandlerChromeOS);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_