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

remoting/jingle_glue/ssl_socket_adapter.cc

 // 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.
 
 #include "remoting/jingle_glue/ssl_socket_adapter.h"
 
 #include "base/base64.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "jingle/glue/utils.h"
@@ skipping 260 matching lines @@
 int64 TransportSocket::NumBytesRead() const {
   NOTREACHED();
   return -1;
 }
 
 base::TimeDelta TransportSocket::GetConnectTimeMicros() const {
   NOTREACHED();
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
+net::NextProto TransportSocket::GetNegotiatedProtocol() const {
+  NOTREACHED();
+  return net::kProtoUnknown;
+}
+
 int TransportSocket::Read(net::IOBuffer* buf, int buf_len,
                           const net::CompletionCallback& callback) {
   DCHECK(buf);
   DCHECK(read_callback_.is_null());
   DCHECK(!read_buffer_.get());
   int result = socket_->Recv(buf->data(), buf_len);
   if (result < 0) {
     result = net::MapSystemError(socket_->GetError());
     if (result == net::ERR_IO_PENDING) {
       read_callback_ = callback;
@@ skipping 81 matching lines @@
         write_buffer_len_ = buffer_len;
         return;
       }
     }
     was_used_to_convey_data_ = true;
     callback.Run(result);
   }
 }
 
 }  // namespace remoting