Media Capture Depth Stream Extensions API: videoKind settings and constraint.

content/renderer/media/media_stream_video_track.cc

Index: content/renderer/media/media_stream_video_track.cc
diff --git a/content/renderer/media/media_stream_video_track.cc b/content/renderer/media/media_stream_video_track.cc
index 23e0ab95913510e0783918533d252a97b589a764..c18283c3220f8fe1d0d866d76783aa1f522f4f3f 100644
--- a/content/renderer/media/media_stream_video_track.cc
+++ b/content/renderer/media/media_stream_video_track.cc
@@ -14,6 +14,16 @@
 
 namespace content {
 
+const char kVideoKindColor[] = "color";
+const char kVideoKindDepth[] = "depth";
+
+blink::WebString GetVideoKindForFormat(
+    const media::VideoCaptureFormat& format) {
+  return (format.pixel_format == media::PIXEL_FORMAT_Y16)
+             ? blink::WebString::fromASCII(kVideoKindDepth)
+             : blink::WebString::fromASCII(kVideoKindColor);
+}
+
 namespace {
 void ResetCallback(std::unique_ptr<VideoCaptureDeliverFrameCB> callback) {
   // |callback| will be deleted when this exits.
@@ -311,6 +321,7 @@ void MediaStreamVideoTrack::getSettings(
     settings.frameRate = format->frame_rate;
     settings.width = format->frame_size.width();
     settings.height = format->frame_size.height();
+    settings.videoKind = GetVideoKindForFormat(*format);
   }
   switch (source_->device_info().device.video_facing) {
     case media::MEDIA_VIDEO_FACING_NONE: