Added CompoundBuffer that will be used to store data in the encoding/decoding

remoting/base/multiple_array_input_stream.h

-// Copyright (c) 2010 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.
-
-// MultipleArrayInputStream implements ZeroCopyInputStream to be used by
-// protobuf to decode bytes into a protocol buffer message.
-//
-// This input stream is made of multiple IOBuffers received from the network.
-// This object retains the IOBuffers added to it.
-//
-// Internally, we wrap each added IOBuffer in a DrainableIOBuffer. This allows
-// us to track how much data has been consumed from each IOBuffer.
-
-#ifndef REMOTING_BASE_MULTIPLE_ARRAY_INPUT_STREAM_H_
-#define REMOTING_BASE_MULTIPLE_ARRAY_INPUT_STREAM_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/ref_counted.h"
-#include "google/protobuf/io/zero_copy_stream.h"
-
-namespace net {
-class DrainableIOBuffer;
-class IOBuffer;
-}  // namespace net
-
-namespace remoting {
-
-class MultipleArrayInputStream :
-      public google::protobuf::io::ZeroCopyInputStream {
- public:
-  MultipleArrayInputStream();
-  virtual ~MultipleArrayInputStream();
-
-  // Add a buffer to the list. |buffer| is retained by this object.
-  void AddBuffer(net::IOBuffer* buffer, int size);
-
-  // google::protobuf::io::ZeroCopyInputStream interface.
-  virtual bool Next(const void** data, int* size);
-  virtual void BackUp(int count);
-  virtual bool Skip(int count);
-  virtual int64 ByteCount() const;
-
- private:
-  std::vector<scoped_refptr<net::DrainableIOBuffer> > buffers_;
-
-  size_t current_buffer_;
-  int position_;
-  int last_returned_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(MultipleArrayInputStream);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_BASE_MULTIPLE_ARRAY_INPUT_STREAM_H_