Make LoggingNetworkChangeObserver log specific network changes

net/base/logging_network_change_observer.h

 // Copyright (c) 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 NET_BASE_LOGGING_NETWORK_CHANGE_OBSERVER_H_
 #define NET_BASE_LOGGING_NETWORK_CHANGE_OBSERVER_H_
 
 #include "base/macros.h"
 #include "net/base/net_export.h"
 #include "net/base/network_change_notifier.h"
 
 namespace net {
 
 class NetLog;
 
 // A class that adds NetLog events for network change events coming from the
 // net::NetworkChangeNotifier.
 class NET_EXPORT LoggingNetworkChangeObserver
     : public NetworkChangeNotifier::IPAddressObserver,
       public NetworkChangeNotifier::ConnectionTypeObserver,
-      public NetworkChangeNotifier::NetworkChangeObserver {
+      public NetworkChangeNotifier::NetworkChangeObserver,
+      public NetworkChangeNotifier::NetworkObserver {
  public:
   // Note: |net_log| must remain valid throughout the lifetime of this
   // LoggingNetworkChangeObserver.
   explicit LoggingNetworkChangeObserver(NetLog* net_log);
   ~LoggingNetworkChangeObserver() override;
 
  private:
   // NetworkChangeNotifier::IPAddressObserver implementation.
   void OnIPAddressChanged() override;
 
   // NetworkChangeNotifier::ConnectionTypeObserver implementation.
   void OnConnectionTypeChanged(
       NetworkChangeNotifier::ConnectionType type) override;
 
   // NetworkChangeNotifier::NetworkChangeObserver implementation.
   void OnNetworkChanged(NetworkChangeNotifier::ConnectionType type) override;
 
- private:
+  // NetworkChangeNotifier::NetworkObserver implementation.
+  void OnNetworkConnected(
+      NetworkChangeNotifier::NetworkHandle network) override;
+  void OnNetworkDisconnected(
+      NetworkChangeNotifier::NetworkHandle network) override;
+  void OnNetworkSoonToDisconnect(
+      NetworkChangeNotifier::NetworkHandle network) override;
+  void OnNetworkMadeDefault(
+      NetworkChangeNotifier::NetworkHandle network) override;
+
   NetLog* net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(LoggingNetworkChangeObserver);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_LOGGING_NETWORK_CHANGE_OBSERVER_H_