Add native-side unit test for Android NetworkChangeNotifier

net/android/network_change_notifier_factory.cc

Index: net/android/network_change_notifier_factory.cc
diff --git a/net/android/network_change_notifier_factory.cc b/net/android/network_change_notifier_factory.cc
deleted file mode 100644
index 82d2761394939abee7f235eec69fd26201a8dd1d..0000000000000000000000000000000000000000
--- a/net/android/network_change_notifier_factory.cc
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "net/android/network_change_notifier_factory.h"
-
-#include "net/android/network_change_notifier_android.h"
-
-namespace net {
-namespace android {
-
-NetworkChangeNotifierFactory::NetworkChangeNotifierFactory() {}
-
-net::NetworkChangeNotifier* NetworkChangeNotifierFactory::CreateInstance() {
-  return new NetworkChangeNotifier();
-}
-
-}  // namespace android
-}  // namespace net