Massively simplify the NetworkChangeNotifier infrastructure:...

chrome/common/net/network_change_notifier_thread.h

-// Copyright (c) 2010 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_COMMON_NET_NETWORK_CHANGE_NOTIFIER_THREAD_H_
-#define CHROME_COMMON_NET_NETWORK_CHANGE_NOTIFIER_THREAD_H_
-
-// A simple interface that represents a thread which owns a
-// NetworkChangeNotifier.
-
-class MessageLoop;
-
-namespace net {
-class NetworkChangeNotifier;
-}  // namespace net
-
-namespace chrome_common_net {
-
-// An instance of this interface must live no longer than the thread
-// it represents and its message loop and network change notifier.
-class NetworkChangeNotifierThread {
- public:
-  virtual ~NetworkChangeNotifierThread() {}
-
-  // Returns the message loop for the thread that owns the
-  // NetworkChangeNotifier.  Can be called on any thread.
-  virtual MessageLoop* GetMessageLoop() const = 0;
-
-  // Returns the NetworkChangeNotifier of the thread.  This method
-  // must be called only from the owning thread (i.e., by posting a
-  // task onto the message loop returned by GetMessageLoop()).
-  virtual net::NetworkChangeNotifier* GetNetworkChangeNotifier() const = 0;
-};
-
-}  // namespace chrome_common_net
-
-#endif  // CHROME_COMMON_NET_NETWORK_CHANGE_NOTIFIER_THREAD_H_