Add test for graceful GOAWAY.

Add test for graceful GOAWAY.

Review-Url: https://codereview.chromium.org/2628973004
Cr-Commit-Position: refs/heads/master@{#443282}
Committed: https://chromium.googlesource.com/chromium/src/+/1fc7b35ee14c30ec55fbdb6612821804f49c3afa

[Bence, 2017-01-12 15:03:48]

The CQ bit was checked by bnc@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-12 15:04:12]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-12 15:33:23]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-01-12 15:33:24]

Dry run: This issue passed the CQ dry run.

[Bence, 2017-01-12 15:37:14]

bnc@chromium.org changed reviewers:
+ rch@chromium.org

[Bence, 2017-01-12 15:37:15]

Ryan: PTAL.  Thank you.

[Ryan Hamilton, 2017-01-12 17:45:22]

The CQ bit was checked by rch@chromium.org

[Ryan Hamilton, 2017-01-12 17:45:23]

lgtm

[commit-bot: I haz the power, 2017-01-12 17:45:51]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-12 17:51:07]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484243122991180, "parent_rev":
"1edf45295cda206bcf8e8479d7cf94dd9b408b1d", "commit_rev":
"1fc7b35ee14c30ec55fbdb6612821804f49c3afa"}

[commit-bot: I haz the power, 2017-01-12 17:51:58]

Description was changed from

==========
Add test for graceful GOAWAY.
==========

to

==========
Add test for graceful GOAWAY.

Review-Url: https://codereview.chromium.org/2628973004
Cr-Commit-Position: refs/heads/master@{#443282}
Committed:
https://chromium.googlesource.com/chromium/src/+/1fc7b35ee14c30ec55fbdb661282...
==========

[commit-bot: I haz the power, 2017-01-12 17:51:59]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1fc7b35ee14c30ec55fbdb661282...