net: remove UsingTCPFastOpen() method from StreamSocket class

jingle/glue/proxy_resolving_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 "jingle/glue/proxy_resolving_client_socket.h"
 
 #include <stdint.h>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 382 matching lines @@
     NOTREACHED();
 }
 
 bool ProxyResolvingClientSocket::WasEverUsed() const {
   if (transport_.get() && transport_->socket())
     return transport_->socket()->WasEverUsed();
   NOTREACHED();
   return false;
 }
 
-bool ProxyResolvingClientSocket::UsingTCPFastOpen() const {
-  if (transport_.get() && transport_->socket())
-    return transport_->socket()->UsingTCPFastOpen();
-  NOTREACHED();
-  return false;
-}
-
 bool ProxyResolvingClientSocket::WasNpnNegotiated() const {
   return false;
 }
 
 net::NextProto ProxyResolvingClientSocket::GetNegotiatedProtocol() const {
   if (transport_.get() && transport_->socket())
     return transport_->socket()->GetNegotiatedProtocol();
   NOTREACHED();
   return net::kProtoUnknown;
 }
@@ skipping 12 matching lines @@
   return 0;
 }
 
 void ProxyResolvingClientSocket::CloseTransportSocket() {
   if (transport_.get() && transport_->socket())
     transport_->socket()->Disconnect();
   transport_.reset();
 }
 
 }  // namespace jingle_glue