Update a comment in proxy_resolution_service_provider_unittest.cc following deprecation of base::No…

Update a comment in proxy_resolution_service_provider_unittest.cc following deprecation of base::NonThreadSafe.

BUG=676387
Review-Url: https://codereview.chromium.org/2921013003
Cr-Commit-Position: refs/heads/master@{#476924}
Committed: https://chromium.googlesource.com/chromium/src/+/60b3f18fedd0b2eb42a06d719cd121ecf7214c4b

[gab, 2017-06-02 19:00:23]

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

[gab, 2017-06-02 19:00:34]

gab@chromium.org changed reviewers:
+ hashimoto@chromium.org

[gab, 2017-06-02 19:00:34]

PTaL and CQ, thanks

[commit-bot: I haz the power, 2017-06-02 19:01:10]

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, 2017-06-02 19:13:00]

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

[commit-bot: I haz the power, 2017-06-02 19:13:00]

Dry run: This issue passed the CQ dry run.

[hashimoto, 2017-06-05 02:18:24]

The CQ bit was checked by hashimoto@chromium.org

[hashimoto, 2017-06-05 02:18:24]

lgtm

[commit-bot: I haz the power, 2017-06-05 02:18:38]

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, 2017-06-05 02:27:26]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496629104347630, "parent_rev":
"9b638538ae77c863dc68cd7e6c0495cba7747f37", "commit_rev":
"60b3f18fedd0b2eb42a06d719cd121ecf7214c4b"}

[commit-bot: I haz the power, 2017-06-05 02:27:33]

Description was changed from

==========
Update a comment in proxy_resolution_service_provider_unittest.cc following
deprecation of base::NonThreadSafe.

BUG=676387
==========

to

==========
Update a comment in proxy_resolution_service_provider_unittest.cc following
deprecation of base::NonThreadSafe.

BUG=676387

Review-Url: https://codereview.chromium.org/2921013003
Cr-Commit-Position: refs/heads/master@{#476924}
Committed:
https://chromium.googlesource.com/chromium/src/+/60b3f18fedd0b2eb42a06d719cd1...
==========

[commit-bot: I haz the power, 2017-06-05 02:27:34]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/60b3f18fedd0b2eb42a06d719cd1...