Refactor ZLib and Verbatim encoders.

remoting/base/compressor_zlib.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.
 
 #ifndef REMOTING_BASE_COMPRESSOR_ZLIB_H_
 #define REMOTING_BASE_COMPRESSOR_ZLIB_H_
 
 #include "base/scoped_ptr.h"
 #include "remoting/base/compressor.h"
 
 typedef struct z_stream_s z_stream;
 
 namespace remoting {
 
 // A lossless compressor using zlib.
 class CompressorZlib : public Compressor {
  public:
   CompressorZlib();
   virtual ~CompressorZlib();
 
   // Compressor implementations.
   virtual bool Process(const uint8* input_data, int input_size,
                        uint8* output_data, int output_size,
                        CompressorFlush flush, int* consumed, int* written);
 
+  virtual void Reset();
+
  private:
   scoped_ptr<z_stream> stream_;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_COMPRESSOR_ZLIB_H_