Merge pull request dotnet/corefx#35485 from geoffkizer/http2streamstate
authorGeoff Kizer <geoffrek@microsoft.com>
Fri, 22 Feb 2019 00:03:00 +0000 (16:03 -0800)
committerGitHub <noreply@github.com>
Fri, 22 Feb 2019 00:03:00 +0000 (16:03 -0800)
add StreamState and rework HTTP2 stream state handling

Commit migrated from https://github.com/dotnet/corefx/commit/cab8d6bbfe49c7571f682234622f4ea3bfcf5010


Trivial merge