Moved XMPP notifier library from chrome/browser/sync to chrome/common....

chrome/browser/sync/notifier/base/async_network_alive.h

-// Copyright (c) 2009 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_SYNC_NOTIFIER_BASE_ASYNC_NETWORK_ALIVE_H_
-#define CHROME_BROWSER_SYNC_NOTIFIER_BASE_ASYNC_NETWORK_ALIVE_H_
-
-#include "talk/base/signalthread.h"
-
-namespace notifier {
-
-// System specific info needed for changes.
-class PlatformNetworkInfo;
-
-class AsyncNetworkAlive : public talk_base::SignalThread {
- public:
-  static AsyncNetworkAlive* Create();
-
-  virtual ~AsyncNetworkAlive() {}
-
-  bool alive() const {
-    return alive_;
-  }
-
-  bool error() const {
-    return error_;
-  }
-
-  void SetWaitForNetworkChange(PlatformNetworkInfo* previous_info) {
-    network_info_ = previous_info;
-  }
-
-  PlatformNetworkInfo* ReleaseInfo() {
-    PlatformNetworkInfo* info = network_info_;
-    network_info_ = NULL;
-    return info;
-  }
-
- protected:
-  AsyncNetworkAlive() : network_info_(NULL), alive_(false), error_(false) {
-  }
-
-  PlatformNetworkInfo* network_info_;
-  bool alive_;
-  bool error_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(AsyncNetworkAlive);
-};
-
-}  // namespace notifier
-
-#endif  // CHROME_BROWSER_SYNC_NOTIFIER_BASE_ASYNC_NETWORK_ALIVE_H_