Refactor ZLib and Verbatim encoders.

remoting/base/encoder_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_ENCODER_ZLIB_H_
-#define REMOTING_BASE_ENCODER_ZLIB_H_
-
-#include "remoting/base/encoder.h"
-
-#include "gfx/rect.h"
-
-namespace remoting {
-
-class CompressorZlib;
-class UpdateStreamPacket;
-
-// EncoderZlib implements an Encoder using Zlib for compression.
-class EncoderZlib : public Encoder {
- public:
-  EncoderZlib();
-  EncoderZlib(int packet_size);
-
-  virtual ~EncoderZlib();
-
-  virtual void Encode(scoped_refptr<CaptureData> capture_data,
-                      bool key_frame,
-                      DataAvailableCallback* data_available_callback);
-
- private:
-  // Encode a single dirty rect using compressor.
-  void EncodeRect(CompressorZlib* compressor, const gfx::Rect& rect,
-                  size_t rect_index);
-
-  // Marks a packets as the first in a series of rectangle updates.
-  void PrepareUpdateStart(const gfx::Rect& rect, VideoPacket* packet);
-
-  // Retrieves a pointer to the output buffer in |update| used for storing the
-  // encoded rectangle data.  Will resize the buffer to |size|.
-  uint8* GetOutputBuffer(VideoPacket* packet, size_t size);
-
-  // Submit |message| to |callback_|.
-  void SubmitMessage(VideoPacket* packet, size_t rect_index);
-
-  scoped_refptr<CaptureData> capture_data_;
-  scoped_ptr<DataAvailableCallback> callback_;
-  //size_t current_rect_;
-  int packet_size_;
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_BASE_ENCODER_ZLIB_H_