Add a new GetNegotiatedProtocol method to StreamSocket and implement in all subclasses.

net/socket/ssl_client_socket.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_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_H_
 #pragma once
 
 #include <string>
 
@@ skipping 70 matching lines @@
   //
   // TODO(sergeyu): Move this method to the SSLSocket interface and
   // implemented in SSLServerSocket too.
   virtual void GetSSLInfo(SSLInfo* ssl_info) = 0;
 
   // Gets the SSL CertificateRequest info of the socket after Connect failed
   // with ERR_SSL_CLIENT_AUTH_CERT_NEEDED.
   virtual void GetSSLCertRequestInfo(
       SSLCertRequestInfo* cert_request_info) = 0;
 
+  virtual NextProto GetNegotiatedProtocol() const OVERRIDE;

[wtc, 2012/03/30 21:19:14]

Add a
  // StreamSocket:
comment here.

[Ryan Hamilton, 2012/03/30 21:53:17]

Done.

+
   // Get the application level protocol that we negotiated with the server.
   // *proto is set to the resulting protocol (n.b. that the string may have
   // embedded NULs).
   //   kNextProtoUnsupported: *proto is cleared.
   //   kNextProtoNegotiated:  *proto is set to the negotiated protocol.
   //   kNextProtoNoOverlap:   *proto is set to the first protocol in the
   //                          supported list.
   // *server_protos is set to the server advertised protocols.
   virtual NextProtoStatus GetNextProto(std::string* proto,
                                        std::string* server_protos) = 0;
@@ skipping 50 matching lines @@
   // Protocol that we negotiated with the server.
   NextProto protocol_negotiated_;
   // Type of the domain bound cert that was sent, or CLIENT_CERT_INVALID_TYPE
   // if none was sent.
   SSLClientCertType domain_bound_cert_type_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_H_