Massively simplify the NetworkChangeNotifier infrastructure:...

net/base/mock_network_change_notifier.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 NET_BASE_MOCK_NETWORK_CHANGE_NOTIFIER_H_
-#define NET_BASE_MOCK_NETWORK_CHANGE_NOTIFIER_H_
-
-#include "base/basictypes.h"
-#include "base/non_thread_safe.h"
-#include "net/base/network_change_notifier.h"
-
-namespace net {
-
-class MockNetworkChangeNotifier : public NetworkChangeNotifier,
-                                  public NonThreadSafe {
- public:
-  MockNetworkChangeNotifier() : observer_(NULL) {}
-
-  virtual ~MockNetworkChangeNotifier() {
-    CHECK(!observer_);
-  }
-
-  void NotifyIPAddressChange() {
-    if (observer_)
-      observer_->OnIPAddressChanged();
-  }
-
-  virtual void AddObserver(Observer* observer) {
-    CHECK(!observer_);
-    observer_ = observer;
-  }
-
-  virtual void RemoveObserver(Observer* observer) {
-    CHECK(observer_ == observer);
-    observer_ = NULL;
-  }
-
- private:
-  Observer* observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockNetworkChangeNotifier);
-};
-
-}  // namespace net
-
-#endif  // NET_BASE_MOCK_NETWORK_CHANGE_NOTIFIER_H_