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

content/renderer/media/media_stream_video_track.h

Index: content/renderer/media/media_stream_video_track.h
diff --git a/content/renderer/media/media_stream_video_track.h b/content/renderer/media/media_stream_video_track.h
index 364a64e73525ae6006a88c478576982ed0a153c5..166e451156753418282fd0a62fb2ca44d4ad29ee 100644
--- a/content/renderer/media/media_stream_video_track.h
+++ b/content/renderer/media/media_stream_video_track.h
@@ -16,9 +16,19 @@
 #include "content/renderer/media/media_stream_track.h"
 #include "content/renderer/media/media_stream_video_source.h"
 #include "content/renderer/media/secure_display_link_tracker.h"
+#include "media/capture/video_capture_types.h"
+#include "third_party/WebKit/public/platform/WebString.h"
 
 namespace content {
 
+// VideoKind enum values. https://w3c.github.io/mediacapture-depth.

[Guido Urdaneta, 2017/02/10 12:45:21]

These are used only here and in media_stream_constraints_util_video_source
files.

Since this is more a utility than a MediaStreamVideoTrack-specific thing, I
would prefer that you move this to media_stream_constraints_util_video_source.*

[aleksandar.stojiljkovic, 2017/02/10 15:06:51]

String constants removed. It is not needed to have them in header anymore.
However, left the GetVideoKindForFormat here - it is used in
media_stream_video_track.cc (settings), media_stream_video_source (filter
formats by constraint) and media_stream_constraints_util_video_source.cc.

+CONTENT_EXPORT extern const char kVideoKindColor[];
+CONTENT_EXPORT extern const char kVideoKindDepth[];
+
+// Calculates and returns videoKind value for |format|.
+blink::WebString CONTENT_EXPORT
+GetVideoKindForFormat(const media::VideoCaptureFormat& format);
+
 // MediaStreamVideoTrack is a video specific representation of a
 // blink::WebMediaStreamTrack in content. It is owned by the blink object
 // and can be retrieved from a blink object using