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 937f3cd0284f058e12fc6a47848ac0ad8ec98204..e72e9dcc31a11a85657c07d687b02971c194f62a 100644
--- a/webrtc/p2p/base/port.h
+++ b/webrtc/p2p/base/port.h
@@ -304,6 +304,8 @@ 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,
@@ -362,6 +364,8 @@ 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_;