Remove shaped desktop support from remoting host and client.

remoting/codec/video_decoder_vpx.h

 // Copyright 2013 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_VPX_H_
 #define REMOTING_CODEC_VIDEO_DECODER_VPX_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/codec/scoped_vpx_codec.h"
 #include "remoting/codec/video_decoder.h"
 
 typedef const struct vpx_codec_iface vpx_codec_iface_t;
 typedef struct vpx_image vpx_image_t;
 
-namespace webrtc {
-class DesktopRect;
-class DesktopRegion;
-}  // namespace webrtc
-
 namespace remoting {
 
 class VideoDecoderVpx : public VideoDecoder {
  public:
   // Create decoders for the specified protocol.
   static scoped_ptr<VideoDecoderVpx> CreateForVP8();
   static scoped_ptr<VideoDecoderVpx> CreateForVP9();
 
   ~VideoDecoderVpx() override;
 
   // VideoDecoder interface.
   bool DecodePacket(const VideoPacket& packet,
                     webrtc::DesktopFrame* frame) override;
 
  private:
   explicit VideoDecoderVpx(vpx_codec_iface_t* codec);
 
   ScopedVpxCodec codec_;
 
-  // The shape of the most-recent frame, if any.
-  scoped_ptr<webrtc::DesktopRegion> desktop_shape_;
-
   DISALLOW_COPY_AND_ASSIGN(VideoDecoderVpx);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CODEC_VIDEO_DECODER_VP8_H_