tree d1a8f95c4a1f76c277f1b1bceb10a3e3bd40ec68
parent 7150d8c60f35806d4a4e0164821e874fec0b0caa
author Henrik Boström <hbos@webrtc.org> 1554811171 +0200
committer Commit Bot <commit-bot@chromium.org> 1554814923 +0000

Implement RTC[In/Out]boundRtpStreamStats.contentType.

Spec: https://henbos.github.io/webrtc-provisional-stats/#dom-rtcinboundrtpstreamstats-contenttype

This already exists as a goog-stat. This CL only plumbs the value to the
new stats collector.

Note: There is currently no distinction between the extension being
missing and it being present but the value being "unspecified". Until
https://crbug.com/webrtc/10529 is fixed, this metric is only exposed if
SCREENSHARE was present.

Bug: webrtc:10452
Change-Id: Ic8723f4d0efb43ab72a560e954676facd3b90659
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/131946
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27520}