Refactoring the SysInfoProvider.

chrome/browser/chromeos/system/sysinfo_provider.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_CHROMEOS_SYSTEM_SYSINFO_PROVIDER_H_
-#define CHROME_BROWSER_CHROMEOS_SYSTEM_SYSINFO_PROVIDER_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "chrome/browser/cancelable_request.h"
-
-class CancelableRequestConsumerBase;
-
-namespace chromeos {
-namespace system {
-
-typedef std::map<std::string, std::string> SysInfoResponse;
-
-// Provides CancelableRequests for fetching system info (network state, etc)
-// from the ChromeOS debug daemon.
-class SysInfoProvider : public CancelableRequestProvider {
- public:
-  // Allocates a new SysInfoProvider and returns it.
-  static SysInfoProvider* Create();
-  virtual ~SysInfoProvider() {}
-
-  typedef base::Callback<void(SysInfoResponse*)> FetchCompleteCallback;
-
-  // Fetches system info from the debug daemon, attributing the request to
-  // |consumer|. Calls |callback| when all information has been fetched.
-  virtual Handle Fetch(CancelableRequestConsumerBase* consumer,
-                       const FetchCompleteCallback& callback) = 0;
-};
-
-}  // namespace system
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_SYSINFO_PROVIDER_H_