Reset TURN port NONCE when a new socket is created.

webrtc/p2p/base/turnport.h

Index: webrtc/p2p/base/turnport.h
diff --git a/webrtc/p2p/base/turnport.h b/webrtc/p2p/base/turnport.h
index 4d83806a37126f96fad74abc83f942d494b79630..af49dc6c880eeabb3a62b50165928b74bf8a68fe 100644
--- a/webrtc/p2p/base/turnport.h
+++ b/webrtc/p2p/base/turnport.h
@@ -152,6 +152,10 @@ class TurnPort : public Port {
   // Returns true if the entry is found.
   bool SetEntryChannelId(const rtc::SocketAddress& address, int channel_id);
 
+  // For testing only.
+  void set_nonce(const std::string& nonce) { nonce_ = nonce; }
+  void set_hash(const std::string& hash) { hash_ = hash; }
+
  protected:
   TurnPort(rtc::Thread* thread,
            rtc::PacketSocketFactory* factory,
@@ -192,8 +196,6 @@ class TurnPort : public Port {
   virtual void OnMessage(rtc::Message* pmsg);
 
   bool CreateTurnClientSocket();
-
-  void set_nonce(const std::string& nonce) { nonce_ = nonce; }
   void set_realm(const std::string& realm) {
     if (realm != realm_) {
       realm_ = realm;
@@ -232,6 +234,7 @@ class TurnPort : public Port {
            const rtc::PacketOptions& options);
   void UpdateHash();
   bool UpdateNonce(StunMessage* response);
+  void ResetNonce();
 
   bool HasPermission(const rtc::IPAddress& ipaddr) const;
   TurnEntry* FindEntry(const rtc::SocketAddress& address) const;