Merge pull request dotnet/corefx#39638 from geoffkizer/streamshutdownfixes4
authorGeoff Kizer <geoffrek@microsoft.com>
Wed, 24 Jul 2019 09:28:18 +0000 (02:28 -0700)
committerGitHub <noreply@github.com>
Wed, 24 Jul 2019 09:28:18 +0000 (02:28 -0700)
HTTP2: Rework shutdown handling

Commit migrated from https://github.com/dotnet/corefx/commit/ca3fe6738ae6afc56e1f8fb5477a57a8dc2e183c


Trivial merge