Fix video_loopback on Mac.

webrtc/video/video_quality_test.cc

Index: webrtc/video/video_quality_test.cc
diff --git a/webrtc/video/video_quality_test.cc b/webrtc/video/video_quality_test.cc
index c773e431502c2e150b2caf1d8a6279ca03ef2d1f..788d4b4c2ec403dd2b23377118575fc9d9a37b9b 100644
--- a/webrtc/video/video_quality_test.cc
+++ b/webrtc/video/video_quality_test.cc
@@ -99,6 +99,10 @@ class VideoStreamFactory
       int width,
       int height,
       const webrtc::VideoEncoderConfig& encoder_config) override {
+    // The highest layer must match the incoming resolution.
+    std::vector<webrtc::VideoStream> streams = streams_;
+    streams[streams_.size() -1].height = height;
+    streams[streams_.size() -1].width = width;

[stefan-webrtc, 2016/11/09 18:19:29]

"streams_.size() - 1"

[perkj_webrtc, 2016/11/10 12:03:54]

Done.

     return streams_;
   }