Changed MessageReader so that it doesn't read from the socket if there are

remoting/base/compound_buffer.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.
 
 // CompoundBuffer implements a data buffer that is composed of several pieces,
 // each stored in a refcounted IOBuffer. It is needed for encoding/decoding
 // video pipeline to represent data packet and minimize data copying.
 // It is particularly useful for splitting data between multiple RTP packets
 // and assembling them into one buffer on the receiving side.
 //
@@ skipping 87 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(CompoundBuffer);
 };
 
 class CompoundBufferInputStream
     : public google::protobuf::io::ZeroCopyInputStream  {
  public:
   // Caller keeps ownership of |buffer|. |buffer| must be locked.
   explicit CompoundBufferInputStream(const CompoundBuffer* buffer);
   virtual ~CompoundBufferInputStream();
 
+  int position() const { return position_; }
+
   // 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:
   const CompoundBuffer* buffer_;
 
   size_t current_chunk_;
   int current_chunk_position_;
   int position_;
   int last_returned_size_;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_COMPOUND_BUFFER_H_