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

jingle/glue/pseudotcp_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 "jingle/glue/pseudotcp_adapter.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "net/base/address_list.h"
@@ skipping 485 matching lines @@
 int64 PseudoTcpAdapter::NumBytesRead() const {
   DCHECK(CalledOnValidThread());
   return -1;
 }
 
 base::TimeDelta PseudoTcpAdapter::GetConnectTimeMicros() const {
   DCHECK(CalledOnValidThread());
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
+net::NextProto PseudoTcpAdapter::GetNegotiatedProtocol() const {
+  DCHECK(CalledOnValidThread());
+  return net::kProtoUnknown;
+}
+
 void PseudoTcpAdapter::SetAckDelay(int delay_ms) {
   DCHECK(CalledOnValidThread());
   core_->SetAckDelay(delay_ms);
 }
 
 void PseudoTcpAdapter::SetNoDelay(bool no_delay) {
   DCHECK(CalledOnValidThread());
   core_->SetNoDelay(no_delay);
 }
 
 }  // namespace jingle_glue