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

net/socket/tcp_client_socket_libevent.cc

 // Copyright (c) 2011 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.
 
 #include "net/socket/tcp_client_socket.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <netdb.h>
 #include <sys/socket.h>
@@ skipping 534 matching lines @@
 
 bool TCPClientSocketLibevent::SetSendBufferSize(int32 size) {
   DCHECK(CalledOnValidThread());
   int rv = setsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
       reinterpret_cast<const char*>(&size),
       sizeof(size));
   DCHECK(!rv) << "Could not set socket send buffer size: " << errno;
   return rv == 0;
 }
 
+NextProto TCPClientSocketLibevent::GetNegotiatedProtocol() const {

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

Nit: define this after the GetConnectTimeMicros() method.

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

Done.

+  return kProtoUnknown;
+}
+
 void TCPClientSocketLibevent::LogConnectCompletion(int net_error) {
   if (net_error == OK)
     UpdateConnectionTypeHistograms(CONNECTION_ANY);
 
   if (net_error != OK) {
     net_log_.EndEventWithNetErrorCode(NetLog::TYPE_TCP_CONNECT, net_error);
     return;
   }
 
   struct sockaddr_storage source_address;
@@ skipping 162 matching lines @@
 
 int64 TCPClientSocketLibevent::NumBytesRead() const {
   return num_bytes_read_;
 }
 
 base::TimeDelta TCPClientSocketLibevent::GetConnectTimeMicros() const {
   return connect_time_micros_;
 }
 
 }  // namespace net