Revert of [Chromecast] Ignore interfaces not used to connect to internet.

chromecast/net/network_change_notifier_factory_cast.h

Index: chromecast/net/network_change_notifier_factory_cast.h
diff --git a/chromecast/net/network_change_notifier_factory_cast.h b/chromecast/net/network_change_notifier_factory_cast.h
deleted file mode 100644
index 058d5b91c6b123f491cee92f57b8d8fb85d2dab8..0000000000000000000000000000000000000000
--- a/chromecast/net/network_change_notifier_factory_cast.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2015 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 CHROMECAST_NET_NETWORK_CHANGE_NOTIFIER_FACTORY_CAST_H_
-#define CHROMECAST_NET_NETWORK_CHANGE_NOTIFIER_FACTORY_CAST_H_
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "net/base/network_change_notifier_factory.h"
-
-namespace chromecast {
-
-class NetworkChangeNotifierCast;
-
-class NetworkChangeNotifierFactoryCast
-    : public net::NetworkChangeNotifierFactory {
- public:
-  NetworkChangeNotifierFactoryCast() {}
-  ~NetworkChangeNotifierFactoryCast() override;
-
-  // net::NetworkChangeNotifierFactory implementation:
-  net::NetworkChangeNotifier* CreateInstance() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierFactoryCast);
-};
-
-}  // namespace chromecast
-
-#endif  // CHROMECAST_NET_NETWORK_CHANGE_NOTIFIER_FACTORY_CAST_H_