fix duplicated basename network_change_notifier.cc in net target

net/android/network_change_notifier.h

-// 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.
-
-#ifndef NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
-#define NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
-#pragma once
-
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "net/base/network_change_notifier.h"
-
-namespace net {
-namespace android {
-
-class NetworkChangeNotifier : public net::NetworkChangeNotifier {
- public:
-  NetworkChangeNotifier();
-  virtual ~NetworkChangeNotifier();
-
-  void NotifyObservers(JNIEnv* env, jobject obj);
-
-  static bool Register(JNIEnv* env);
-
- private:
-  void CreateJavaObject(JNIEnv* env);
-
-  // NetworkChangeNotifier:
-  virtual bool IsCurrentlyOffline() const OVERRIDE;
-
-  base::android::ScopedJavaGlobalRef<jobject> java_network_change_notifier_;
-
-  DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifier);
-};
-
-}  // namespace android
-}  // namespace net
-
-#endif  // NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_