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

net/spdy/spdy_proxy_client_socket.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 "net/spdy/spdy_proxy_client_socket.h"
 
 #include <algorithm>  // min
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 151 matching lines @@
 }
 
 int64 SpdyProxyClientSocket::NumBytesRead() const {
   return -1;
 }
 
 base::TimeDelta SpdyProxyClientSocket::GetConnectTimeMicros() const {
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
+NextProto SpdyProxyClientSocket::GetNegotiatedProtocol() const {
+  return kProtoUnknown;
+}
+
 int SpdyProxyClientSocket::Read(IOBuffer* buf, int buf_len,
                                 const CompletionCallback& callback) {
   DCHECK(read_callback_.is_null());
   DCHECK(!user_buffer_);
 
   if (next_state_ == STATE_DISCONNECTED)
     return ERR_SOCKET_NOT_CONNECTED;
 
   if (next_state_ == STATE_CLOSED && read_buffer_.empty()) {
     return 0;
@@ skipping 361 matching lines @@
   }
   // This may have been deleted by read_callback_, so check first.
   if (weak_ptr && !write_callback.is_null())
     write_callback.Run(ERR_CONNECTION_CLOSED);
 }
 
 void SpdyProxyClientSocket::set_chunk_callback(ChunkCallback* /*callback*/) {
 }
 
 }  // namespace net