Remove HTTP pipelining support.

net/socket/buffered_write_stream_socket.h

-// 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.
-
-#ifndef NET_SOCKET_BUFFERED_WRITE_STREAM_SOCKET_H_
-#define NET_SOCKET_BUFFERED_WRITE_STREAM_SOCKET_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "net/base/net_log.h"
-#include "net/socket/stream_socket.h"
-
-namespace base {
-class TimeDelta;
-}
-
-namespace net {
-
-class AddressList;
-class GrowableIOBuffer;
-class IPEndPoint;
-
-// A StreamSocket decorator. All functions are passed through to the wrapped
-// socket, except for Write().
-//
-// Writes are buffered locally so that multiple Write()s to this class are
-// issued as only one Write() to the wrapped socket. This is useful to force
-// multiple requests to be issued in a single packet, as is needed to trigger
-// edge cases in HTTP pipelining.
-//
-// Note that the Write() always returns synchronously. It will either buffer the
-// entire input or return the most recently reported error.
-//
-// There are no bounds on the local buffer size. Use carefully.
-class NET_EXPORT_PRIVATE BufferedWriteStreamSocket : public StreamSocket {
- public:
-  explicit BufferedWriteStreamSocket(scoped_ptr<StreamSocket> socket_to_wrap);
-  virtual ~BufferedWriteStreamSocket();
-
-  // Socket interface
-  virtual int Read(IOBuffer* buf, int buf_len,
-                   const CompletionCallback& callback) OVERRIDE;
-  virtual int Write(IOBuffer* buf, int buf_len,
-                    const CompletionCallback& callback) OVERRIDE;
-  virtual int SetReceiveBufferSize(int32 size) OVERRIDE;
-  virtual int SetSendBufferSize(int32 size) OVERRIDE;
-
-  // StreamSocket interface
-  virtual int Connect(const CompletionCallback& callback) OVERRIDE;
-  virtual void Disconnect() OVERRIDE;
-  virtual bool IsConnected() const OVERRIDE;
-  virtual bool IsConnectedAndIdle() const OVERRIDE;
-  virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE;
-  virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE;
-  virtual const BoundNetLog& NetLog() const OVERRIDE;
-  virtual void SetSubresourceSpeculation() OVERRIDE;
-  virtual void SetOmniboxSpeculation() OVERRIDE;
-  virtual bool WasEverUsed() const OVERRIDE;
-  virtual bool UsingTCPFastOpen() const OVERRIDE;
-  virtual bool WasNpnNegotiated() const OVERRIDE;
-  virtual NextProto GetNegotiatedProtocol() const OVERRIDE;
-  virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE;
-
- private:
-  void DoDelayedWrite();
-  void OnIOComplete(int result);
-
-  scoped_ptr<StreamSocket> wrapped_socket_;
-  scoped_refptr<GrowableIOBuffer> io_buffer_;
-  scoped_refptr<GrowableIOBuffer> backup_buffer_;
-  bool callback_pending_;
-  bool wrapped_write_in_progress_;
-  int error_;
-
-  base::WeakPtrFactory<BufferedWriteStreamSocket> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(BufferedWriteStreamSocket);
-};
-
-}  // namespace net
-
-#endif  // NET_SOCKET_STREAM_SOCKET_H_