Remove a host_resolver()->ClearRules call in a test body and replace it with an AddRule call that h…

Remove a host_resolver()->ClearRules call in a test body and replace it with an AddRule call that happens in SetUpOnMainThread.

This allows us to enforce that mock host resolver isn't modified in a test body.

BUG=713847
Review-Url: https://codereview.chromium.org/2854693002
Cr-Commit-Position: refs/heads/master@{#468479}
Committed: https://chromium.googlesource.com/chromium/src/+/dd5f1e9961edb89b0df27420a76ed3fcc5703424

[jam, 2017-05-01 21:06:34]

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

[commit-bot: I haz the power, 2017-05-01 21:07:37]

Dry run: CQ is trying da patch.

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

[jam, 2017-05-01 21:08:01]

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

[jam, 2017-05-01 21:08:02]

Patchset #1 (id:1) has been deleted

[jam, 2017-05-01 21:08:13]

jam@chromium.org changed reviewers:
+ rockot@chromium.org

[commit-bot: I haz the power, 2017-05-01 21:09:08]

Dry run: CQ is trying da patch.

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

[Ken Rockot(use gerrit already), 2017-05-01 22:29:03]

lgtm

[commit-bot: I haz the power, 2017-05-01 22:58:46]

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

[commit-bot: I haz the power, 2017-05-01 22:58:47]

Dry run: This issue passed the CQ dry run.

[jam, 2017-05-01 23:14:55]

The CQ bit was checked by jam@chromium.org

[commit-bot: I haz the power, 2017-05-01 23:15:54]

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, 2017-05-01 23:21:36]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493680495733180,
"parent_rev": "faf14f70fbb1920e12c952dd64f7c4e5cb670b5b", "commit_rev":
"dd5f1e9961edb89b0df27420a76ed3fcc5703424"}

[commit-bot: I haz the power, 2017-05-01 23:21:48]

Description was changed from

==========
Remove a host_resolver()->ClearRules call in a test body and replace it with an
AddRule call that happens in SetUpOnMainThread.

This allows us to enforce that mock host resolver isn't modified in a test body.

BUG=713847
==========

to

==========
Remove a host_resolver()->ClearRules call in a test body and replace it with an
AddRule call that happens in SetUpOnMainThread.

This allows us to enforce that mock host resolver isn't modified in a test body.

BUG=713847

Review-Url: https://codereview.chromium.org/2854693002
Cr-Commit-Position: refs/heads/master@{#468479}
Committed:
https://chromium.googlesource.com/chromium/src/+/dd5f1e9961edb89b0df27420a76e...
==========

[commit-bot: I haz the power, 2017-05-01 23:21:49]

Committed patchset #1 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/dd5f1e9961edb89b0df27420a76e...