Add Socket::ReadIfReady()

net/socket/tcp_socket_win.cc

 // Copyright 2013 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_socket.h"
 #include "net/socket/tcp_socket_win.h"
 
 #include <errno.h>
 #include <mstcpip.h>
 
@@ skipping 479 matching lines @@
                        const CompletionCallback& callback) {
   DCHECK(CalledOnValidThread());
   DCHECK_NE(socket_, INVALID_SOCKET);
   DCHECK(!waiting_read_);
   CHECK(read_callback_.is_null());
   DCHECK(!core_->read_iobuffer_.get());
 
   return DoRead(buf, buf_len, callback);
 }
 
+int TCPSocketWin::ReadIfReady(IOBuffer* buf,
+                              int buf_len,
+                              const CompletionCallback& callback) {
+  DCHECK(CalledOnValidThread());
+  // TODO(xunjieli): Implement this.
+  return ERR_READ_IF_READY_NOT_IMPLEMENTED;
+}
+
 int TCPSocketWin::Write(IOBuffer* buf,
                         int buf_len,
                         const CompletionCallback& callback) {
   DCHECK(CalledOnValidThread());
   DCHECK_NE(socket_, INVALID_SOCKET);
   DCHECK(!waiting_write_);
   CHECK(write_callback_.is_null());
   DCHECK_GT(buf_len, 0);
   DCHECK(!core_->write_iobuffer_.get());
 
@@ skipping 522 matching lines @@
 }
 
 bool TCPSocketWin::GetEstimatedRoundTripTime(base::TimeDelta* out_rtt) const {
   DCHECK(out_rtt);
   // TODO(bmcquade): Consider implementing using
   // GetPerTcpConnectionEStats/GetPerTcp6ConnectionEStats.
   return false;
 }
 
 }  // namespace net