testharness.js: support output_document setting.

testharness.js: support output_document setting.

Support output_document as specified here:

https://github.com/w3c/testharness.js/blob/master/docs/api.md#setup

BUG=670796
R=foolip@chromium.org,tkent@chromium.org,rbyers@chromium.org

Committed: https://crrev.com/70eb799287ce4c2208441fc057053a5b07ceabac
Cr-Commit-Position: refs/heads/master@{#436382}

[szager1, 2016-12-02 21:12:54]

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

[commit-bot: I haz the power, 2016-12-02 21:13:59]

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, 2016-12-03 00:33:54]

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

[commit-bot: I haz the power, 2016-12-03 00:33:54]

Dry run: This issue passed the CQ dry run.

[tkent, 2016-12-05 00:05:10]

lgtm

[szager1, 2016-12-05 19:05:48]

The CQ bit was checked by szager@chromium.org

[commit-bot: I haz the power, 2016-12-05 19:06:22]

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, 2016-12-05 20:12:50]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480964748752020, "parent_rev":
"6076c11404e1310702b35393cdb6e1a1d8ed1b1c", "commit_rev":
"3287c4ddd4e1da0ad045cc55c3436ef12f859b87"}

[commit-bot: I haz the power, 2016-12-05 20:13:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-05 20:15:47]

Description was changed from

==========
testharness.js: support output_document setting.

Support output_document as specified here:

https://github.com/w3c/testharness.js/blob/master/docs/api.md#setup

BUG=670796
R=foolip@chromium.org,tkent@chromium.org,rbyers@chromium.org
==========

to

==========
testharness.js: support output_document setting.

Support output_document as specified here:

https://github.com/w3c/testharness.js/blob/master/docs/api.md#setup

BUG=670796
R=foolip@chromium.org,tkent@chromium.org,rbyers@chromium.org

Committed: https://crrev.com/70eb799287ce4c2208441fc057053a5b07ceabac
Cr-Commit-Position: refs/heads/master@{#436382}
==========

[commit-bot: I haz the power, 2016-12-05 20:15:48]

Patchset 1 (id:??) landed as
https://crrev.com/70eb799287ce4c2208441fc057053a5b07ceabac
Cr-Commit-Position: refs/heads/master@{#436382}