The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/93cbfad1add58d084010138d90d7ab3f74e913d2

commit 93cbfad1add58d084010138d90d7ab3f74e913d2
Author: Adam Langley <agl@chromium.org>
Date: Fri Jul 06 22:07:16 2018

Add support for Brotli-compressed certificates with TLS 1.3.

https://tools.ietf.org/html/draft-ietf-tls-certificate-compression-03

BUG= 860767 

Change-Id: Ifc49672915f0b9b89b8c56254c83909b173d8547
Reviewed-on: https://chromium-review.googlesource.com/1128054
Reviewed-by: David Benjamin <davidben@chromium.org>
Commit-Queue: Adam Langley <agl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#573086}
[modify] https://crrev.com/93cbfad1add58d084010138d90d7ab3f74e913d2/net/BUILD.gn
[modify] https://crrev.com/93cbfad1add58d084010138d90d7ab3f74e913d2/net/DEPS
[modify] https://crrev.com/93cbfad1add58d084010138d90d7ab3f74e913d2/net/socket/ssl_client_socket_impl.cc

See also https://www.chromestatus.com/features/5696925844111360 and https://groups.google.com/a/chromium.org/d/msg/blink-dev/DkMcAxxUQGI/n_U1dUTqCQAJ