Remove ZLib codec support from chromoting host and client.

remoting/codec/video_encoder_verbatim.h

+// Copyright (c) 2011 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_ENCODER_VERBATIM_H_
+#define REMOTING_CODEC_VIDEO_ENCODER_VERBATIM_H_
+
+#include "remoting/codec/video_encoder.h"
+#include "remoting/proto/video.pb.h"
+#include "third_party/skia/include/core/SkRect.h"
+
+namespace remoting {
+
+// VideoEncoderVerbatim implements a VideoEncoder that sends image data as is
+// without compression.

[Wez, 2012/10/17 22:25:16]

nit: Clarify the format we mean by "verbatim", e.g. ARGB row-based.

[Sergey Ulanov, 2012/10/18 01:09:52]

Done.

+class VideoEncoderVerbatim : public VideoEncoder {
+ public:
+  VideoEncoderVerbatim();
+  virtual ~VideoEncoderVerbatim();
+
+  void SetMaxPacketSize(int size);

[Wez, 2012/10/17 22:25:16]

nit: Clarify what this is for.

[Sergey Ulanov, 2012/10/18 01:09:52]

Done.

+
+  // VideoEncoder interface.
+  virtual void Encode(
+      scoped_refptr<CaptureData> capture_data,
+      bool key_frame,
+      const DataAvailableCallback& data_available_callback) OVERRIDE;
+
+ private:
+  // Encode a single dirty rect.
+  void EncodeRect(const SkIRect& rect, bool last);
+
+  // Marks a packet as the first in a series of rectangle updates.

[Wez, 2012/10/17 22:25:16]

nit: How is |rect| used?

[Sergey Ulanov, 2012/10/18 01:09:52]

Done.

+  void PrepareUpdateStart(const SkIRect& rect, VideoPacket* packet);
+
+  // Retrieves a pointer to the output buffer in |update| used for storing the

[Wez, 2012/10/17 22:25:16]

What is |update|?

[Sergey Ulanov, 2012/10/18 01:09:52]

That was old stale comment from row_based encoder. Fixed.

+  // encoded rectangle data.  Will resize the buffer to |size|.
+  uint8* GetOutputBuffer(VideoPacket* packet, size_t size);
+
+  // Submit |message| to |callback_|.

[Wez, 2012/10/17 22:25:16]

nit: |message| -> |packet|

[Sergey Ulanov, 2012/10/18 01:09:52]

Done.

+  void SubmitMessage(VideoPacket* packet, size_t rect_index);
+
+  scoped_refptr<CaptureData> capture_data_;
+  DataAvailableCallback callback_;
+
+  // The most recent screen size.
+  SkISize screen_size_;
+
+  int packet_size_;

[Wez, 2012/10/17 22:25:16]

nit: max_packet_size_

[Sergey Ulanov, 2012/10/18 01:09:52]

Done.

+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CODEC_VIDEO_ENCODER_VERBATIM_H_