Add FullStack test for simulcast screenshare mode.

webrtc/video/video_receive_stream.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 376 matching lines @@
   stats_proxy_.OnRenderedFrame(video_frame);
 }
 
 // TODO(asapersson): Consider moving callback from video_encoder.h or
 // creating a different callback.
 EncodedImageCallback::Result VideoReceiveStream::OnEncodedImage(
     const EncodedImage& encoded_image,
     const CodecSpecificInfo* codec_specific_info,
     const RTPFragmentationHeader* fragmentation) {
   stats_proxy_.OnPreDecode(encoded_image, codec_specific_info);
+  size_t simulcast_idx = 0;
+  if (codec_specific_info->codecType == kVideoCodecVP8) {
+    simulcast_idx = codec_specific_info->codecSpecific.VP8.simulcastIdx;
+  }
   if (config_.pre_decode_callback) {
-    config_.pre_decode_callback->EncodedFrameCallback(
-        EncodedFrame(encoded_image._buffer, encoded_image._length,
-                     encoded_image._frameType, encoded_image._encodedWidth,
-                     encoded_image._encodedHeight, encoded_image._timeStamp));
+    config_.pre_decode_callback->EncodedFrameCallback(EncodedFrame(
+        encoded_image._buffer, encoded_image._length, encoded_image._frameType,
+        simulcast_idx, encoded_image._timeStamp));
   }
   {
     rtc::CritScope lock(&ivf_writer_lock_);
     if (ivf_writer_.get()) {
       RTC_DCHECK(codec_specific_info);
       bool ok = ivf_writer_->WriteFrame(encoded_image,
                                         codec_specific_info->codecType);
       RTC_DCHECK(ok);
     }
   }
@@ skipping 76 matching lines @@
       rtp_stream_receiver_.FrameDecoded(frame->picture_id);
   } else {
     LOG(LS_WARNING) << "No decodable frame in " << kMaxWaitForFrameMs
                     << " ms, requesting keyframe.";
     RequestKeyFrame();
   }
   return true;
 }
 }  // namespace internal
 }  // namespace webrtc