Convert textarea-paste-newline.html to the testharness.js style.

Convert textarea-paste-newline.html to the testharness.js style.

textarea-paste-newline.html used dumpAsText() without js-test.js.
This CL has no behaivor changes.
This is a preparation of crbug.com/380471.

BUG=380471
Committed: https://crrev.com/3242e5d006f531af516d464c7084dde7e1346f0d
Cr-Commit-Position: refs/heads/master@{#381669}

[tkent, 2016-03-17 07:00:20]

tkent@chromium.org changed reviewers:
+ yosin@chromium.org

[tkent, 2016-03-17 07:00:21]

yosin@, would you review this please?

[yosin_UTC9, 2016-03-17 07:24:57]

The CQ bit was checked by yosin@chromium.org

[yosin_UTC9, 2016-03-17 07:24:58]

lgtm

[commit-bot: I haz the power, 2016-03-17 07:25:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1807123002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1807123002/1

[commit-bot: I haz the power, 2016-03-17 07:54:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-17 07:55:47]

Description was changed from

==========
Convert textarea-paste-newline.html to the testharness.js style.

textarea-paste-newline.html used dumpAsText() without js-test.js.
This CL has no behaivor changes.
This is a preparation of crbug.com/380471.

BUG=380471
==========

to

==========
Convert textarea-paste-newline.html to the testharness.js style.

textarea-paste-newline.html used dumpAsText() without js-test.js.
This CL has no behaivor changes.
This is a preparation of crbug.com/380471.

BUG=380471

Committed: https://crrev.com/3242e5d006f531af516d464c7084dde7e1346f0d
Cr-Commit-Position: refs/heads/master@{#381669}
==========

[commit-bot: I haz the power, 2016-03-17 07:55:48]

Patchset 1 (id:??) landed as
https://crrev.com/3242e5d006f531af516d464c7084dde7e1346f0d
Cr-Commit-Position: refs/heads/master@{#381669}