Update the type and cost of existing networks if its type is found later by network monitor

webrtc/p2p/base/port.h

Index: webrtc/p2p/base/port.h
diff --git a/webrtc/p2p/base/port.h b/webrtc/p2p/base/port.h
index 7ec33bcd0b18169f22998026ee4bd19d37be8830..3e125c788fb78729ac165944575b3fc8e2a34af0 100644
--- a/webrtc/p2p/base/port.h
+++ b/webrtc/p2p/base/port.h
@@ -306,6 +306,8 @@ class Port : public PortInterface, public rtc::MessageHandler,
     MSG_FIRST_AVAILABLE
   };
 
+  virtual void UpdateNetworkCost();
+
   void set_type(const std::string& type) { type_ = type; }
 
   void AddAddress(const rtc::SocketAddress& address,
@@ -364,6 +366,8 @@ class Port : public PortInterface, public rtc::MessageHandler,
 
   void OnNetworkInactive(const rtc::Network* network);
 
+  void OnNetworkTypeChanged(const rtc::Network* network);
+
   rtc::Thread* thread_;
   rtc::PacketSocketFactory* factory_;
   std::string type_;