Add a dedicated error code for TLS 1.3 interference.

net/socket/ssl_client_socket_pool.h

 // Copyright (c) 2012 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_SOCKET_SSL_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_POOL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 133 matching lines @@
 
   // Returns the initial state for the state machine based on the
   // |connection_type|.
   static State GetInitialState(SSLSocketParams::ConnectionType connection_type);
 
   // Starts the SSL connection process.  Returns OK on success and
   // ERR_IO_PENDING if it cannot immediately service the request.
   // Otherwise, it returns a net error code.
   int ConnectInternal() override;
 
+  void ResetStateForRetry();
+
   scoped_refptr<SSLSocketParams> params_;
   TransportClientSocketPool* const transport_pool_;
   SOCKSClientSocketPool* const socks_pool_;
   HttpProxyClientSocketPool* const http_proxy_pool_;
   ClientSocketFactory* const client_socket_factory_;
 
   const SSLClientSocketContext context_;
 
   State next_state_;
   CompletionCallback callback_;
   std::unique_ptr<ClientSocketHandle> transport_socket_handle_;
   std::unique_ptr<SSLClientSocket> ssl_socket_;
 
   HttpResponseInfo error_response_info_;
 
   ConnectionAttempts connection_attempts_;
   // The address of the server the connect job is connected to. Populated if
   // and only if the connect job is connected *directly* to the server (not
   // through an HTTPS CONNECT request or a SOCKS proxy).
   IPEndPoint server_address_;
 
+  bool version_interference_probe_;
+
+  // The error which triggered a TLS 1.3 version interference probe, or OK if
+  // none was triggered.
+  int version_interference_error_;
+
   DISALLOW_COPY_AND_ASSIGN(SSLConnectJob);
 };
 
 class NET_EXPORT_PRIVATE SSLClientSocketPool
     : public ClientSocketPool,
       public HigherLayeredPool,
       public SSLConfigService::Observer {
  public:
   typedef SSLSocketParams SocketParams;
 
@@ skipping 122 matching lines @@
   HttpProxyClientSocketPool* const http_proxy_pool_;
   PoolBase base_;
   const scoped_refptr<SSLConfigService> ssl_config_service_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLClientSocketPool);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_POOL_H_