Remove ZLib codec support from chromoting host and client.

remoting/codec/video_decoder_verbatim.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 REMOTING_CODEC_VIDEO_DECODER_ROW_BASED_H_
-#define REMOTING_CODEC_VIDEO_DECODER_ROW_BASED_H_
+#ifndef REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_
+#define REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/codec/video_decoder.h"
 
 namespace remoting {
 
-class Decompressor;
+// Video decoder implementations that decodes video packet encoded by
+// VideoEncoderVerbatim. It just copies data from incoming packets to the
+// video frames.
+class VideoDecoderVerbatim : public VideoDecoder {
+ public:
+  virtual ~VideoDecoderVerbatim();
 
-class VideoDecoderRowBased : public VideoDecoder {
- public:
-  virtual ~VideoDecoderRowBased();
-
-  static VideoDecoderRowBased* CreateZlibDecoder();
-  static VideoDecoderRowBased* CreateVerbatimDecoder();
+  VideoDecoderVerbatim();
 
   // VideoDecoder implementation.
   virtual bool IsReadyForData() OVERRIDE;
   virtual void Initialize(const SkISize& screen_size) OVERRIDE;
   virtual DecodeResult DecodePacket(const VideoPacket* packet) OVERRIDE;
   virtual VideoPacketFormat::Encoding Encoding() OVERRIDE;
   virtual void Invalidate(const SkISize& view_size,
                           const SkRegion& region) OVERRIDE;
   virtual void RenderFrame(const SkISize& view_size,
                            const SkIRect& clip_area,
                            uint8* image_buffer,
                            int image_stride,
                            SkRegion* output_region) OVERRIDE;
 
  private:
   enum State {
     kUninitialized,
     kReady,
     kProcessing,
     kPartitionDone,
     kDone,
     kError,
   };
 
-  VideoDecoderRowBased(Decompressor* decompressor,
-                       VideoPacketFormat::Encoding encoding);
-
   // Helper method. Called from DecodePacket to updated state of the decoder.
   void UpdateStateForPacket(const VideoPacket* packet);
 
   // The internal state of the decoder.
   State state_;
 
   // Keeps track of the updating rect.
   SkIRect clip_;
 
-  // The compression for the input byte stream.
-  scoped_ptr<Decompressor> decompressor_;
-
-  // The encoding of the incoming stream.
-  VideoPacketFormat::Encoding encoding_;
-
   // The position in the row that we are updating.
   int row_pos_;
 
   // The current row in the rect that we are updaing.
   int row_y_;
 
   // The region updated that hasn't been copied to the screen yet.
   SkRegion updated_region_;
 
   // Size of the remote screen.
   SkISize screen_size_;
 
   // The bitmap holding the remote screen bits.
   scoped_array<uint8> screen_buffer_;
 
-  DISALLOW_COPY_AND_ASSIGN(VideoDecoderRowBased);
+  DISALLOW_COPY_AND_ASSIGN(VideoDecoderVerbatim);
 };
 
 }  // namespace remoting
 
-#endif  // REMOTING_CODEC_VIDEO_DECODER_ROW_BASED_H_
+#endif  // REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_