Use webrtc::DesktopCapturer for screen capturer implementation.

remoting/codec/video_encoder.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_ENCODER_H_
 #define REMOTING_CODEC_VIDEO_ENCODER_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
-#include "media/base/data_buffer.h"
 
-namespace media {
-class ScreenCaptureData;
-}  // namespace media
+class SkRegion;
+
+namespace webrtc {
+class DesktopFrame;
+}  // namespace webrtc
 
 namespace remoting {
 
 class VideoPacket;
 
-// A class to perform the task of encoding a continous stream of
-// images.
-// This class operates asynchronously to enable maximum throughput.
+// A class to perform the task of encoding a continuous stream of images. The
+// interface is asynchronous to enable maximum throughput,.

[alexeypa (please no reviews), 2013/05/08 22:24:59]

nit: remove the comma at the end.

[Sergey Ulanov, 2013/05/09 18:49:02]

Done.

 class VideoEncoder {
  public:
 
   // DataAvailableCallback is called one or more times, for each chunk the
   // underlying video encoder generates.
   typedef base::Callback<void(scoped_ptr<VideoPacket>)> DataAvailableCallback;
 
   virtual ~VideoEncoder() {}
 
-  // Encode an image stored in |capture_data|.
-  //
-  // If |key_frame| is true, the encoder should not reference
-  // previous encode and encode the full frame.
-  //
-  // When encoded data is available, partial or full |data_available_callback|
-  // is called.
-  virtual void Encode(scoped_refptr<media::ScreenCaptureData> capture_data,
-                      bool key_frame,
+  // Encode an image stored in |frame|. Doesn't take ownership of |frame|. When
+  // encoded data is available, partial or full |data_available_callback| is
+  // called.
+  virtual void Encode(const webrtc::DesktopFrame* frame,
                       const DataAvailableCallback& data_available_callback) = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CODEC_VIDEO_ENCODER_H_