Revert of [Android WebView] Implement support for Network Information API and enable it.

android_webview/browser/net/aw_network_change_notifier_factory.h

-// Copyright 2016 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 ANDROID_WEBVIEW_NET_AW_NETWORK_CHANGE_NOTIFIER_FACTORY_H_
-#define ANDROID_WEBVIEW_NET_AW_NETWORK_CHANGE_NOTIFIER_FACTORY_H_
-
-#include "net/android/network_change_notifier_delegate_android.h"
-#include "net/base/network_change_notifier_factory.h"
-
-namespace net {
-class NetworkChangeNotifier;
-class NetworkChangeNotifierDelegateAndroid;
-}
-
-namespace android_webview {
-
-// AwNetworkChangeNotifierFactory creates WebView-specific specialization of
-// NetworkChangeNotifier. See aw_network_change_notifier.h for more details.
-class AwNetworkChangeNotifierFactory :
-    public net::NetworkChangeNotifierFactory {
- public:
-  // Must be called on the JNI thread.
-  AwNetworkChangeNotifierFactory();
-
-  // Must be called on the JNI thread.
-  ~AwNetworkChangeNotifierFactory() override;
-
-  // NetworkChangeNotifierFactory:
-  net::NetworkChangeNotifier* CreateInstance() override;
-
- private:
-  // Delegate passed to the instances created by this class.
-  net::NetworkChangeNotifierDelegateAndroid delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(AwNetworkChangeNotifierFactory);
-};
-
-}  // namespace android_webview
-
-#endif  // ANDROID_WEBVIEW_NET_AW_NETWORK_CHANGE_NOTIFIER_FACTORY_H_