Massively simplify the NetworkChangeNotifier infrastructure:...

chrome/common/net/network_change_notifier_proxy.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_PROXY_H_
-#define CHROME_COMMON_NET_NETWORK_CHANGE_NOTIFIER_PROXY_H_
-
-// NetworkChangeNotifierProxy is a class that lets observers listen to
-// a NetworkChangeNotifier that lives on another thread.
-
-#include "base/basictypes.h"
-#include "base/non_thread_safe.h"
-#include "base/observer_list.h"
-#include "base/ref_counted.h"
-#include "net/base/network_change_notifier.h"
-
-class MessageLoop;
-
-namespace chrome_common_net {
-
-class NetworkChangeNotifierThread;
-class NetworkChangeObserverProxy;
-
-class NetworkChangeNotifierProxy : public net::NetworkChangeNotifier,
-                                   public NonThreadSafe {
- public:
-  // |source_thread| must be guaranteed to outlive the current thread.
-  // Does not take ownership of any arguments.
-  explicit NetworkChangeNotifierProxy(
-      NetworkChangeNotifierThread* source_thread);
-
-  virtual ~NetworkChangeNotifierProxy();
-
-  // net::NetworkChangeNotifier implementation.
-  virtual void AddObserver(net::NetworkChangeNotifier::Observer* observer);
-  virtual void RemoveObserver(net::NetworkChangeNotifier::Observer* observer);
-
- private:
-  typedef ObserverList<net::NetworkChangeNotifier::Observer, true>
-      NetworkObserverList;
-
-  // Utility class that routes received notifications to a list of
-  // observers.
-  class ObserverRepeater : public net::NetworkChangeNotifier::Observer,
-                           public NonThreadSafe {
-   public:
-    // Does not take ownership of the given observer list.
-    explicit ObserverRepeater(NetworkObserverList* observers);
-
-    virtual ~ObserverRepeater();
-
-    // net::NetworkChangeNotifier::Observer implementation.
-    virtual void OnIPAddressChanged();
-
-   private:
-    NetworkObserverList* observers_;
-
-    DISALLOW_COPY_AND_ASSIGN(ObserverRepeater);
-  };
-
-  scoped_refptr<NetworkChangeObserverProxy> observer_proxy_;
-  NetworkObserverList observers_;
-  ObserverRepeater observer_repeater_;
-
-  DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierProxy);
-};
-
-}  // namespace chrome_common_net
-
-#endif  // CHROME_COMMON_NET_NETWORK_CHANGE_NOTIFIER_PROXY_H_