1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_ 6 #define CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_ 7 8 #include <string> 9 10 #include "chrome/browser/chromeos/version_loader.h" 11 #include "chrome/browser/ui/webui/version_handler.h" 12 13 // VersionHandlerChromeOS is responsible for loading the Chrome OS 14 // version. 15 class VersionHandlerChromeOS : public VersionHandler { 16 public: 17 VersionHandlerChromeOS(); 18 virtual ~VersionHandlerChromeOS(); 19 20 // VersionHandler overrides: 21 virtual void HandleRequestVersionInfo(const base::ListValue* args) OVERRIDE; 22 23 // Callback from chromeos::VersionLoader giving the version. 24 void OnVersion(const std::string& version); 25 26 private: 27 // Handles asynchronously loading the version. 28 chromeos::VersionLoader loader_; 29 30 // Used to request the version. 31 base::CancelableTaskTracker tracker_; 32 33 DISALLOW_COPY_AND_ASSIGN(VersionHandlerChromeOS); 34 }; 35 36 #endif // CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_ 37