Convert editing/before-after-input-element.html to use w3c test harness

Convert editing/before-after-input-element.html to use w3c test harness

This patch converts "editing/before-after-input-element.html" to use w3c test
harness to simplify test script for improving readability.

BUG=n/a
TEST=n/a; no behavior changes

Committed: https://crrev.com/596044410bd1c79dcbea07a4d09c5b7a963fd759
Cr-Commit-Position: refs/heads/master@{#414359}

[yosin_UTC9, 2016-08-25 06:46:45]

Description was changed from

==========
2016-08-25T15:45:05

BUG=
==========

to

==========
Convert editing/before-after-input-element.html to use w3c test harness

This patch converts "editing/before-after-input-element.html" to use w3c test
harness to simplify test script for improving readability.

BUG=n/a
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2016-08-25 06:48:00]

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

[commit-bot: I haz the power, 2016-08-25 06:48:20]

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

[yosin_UTC9, 2016-08-25 07:47:58]

yosin@chromium.org changed reviewers:
+ xiaochengh@chromium.org, yoichio@chromium.org

[yosin_UTC9, 2016-08-25 07:47:59]

PTAL

[Xiaocheng, 2016-08-25 08:03:07]

lgtm

[yosin_UTC9, 2016-08-25 08:07:24]

The CQ bit was unchecked by yosin@chromium.org

[yosin_UTC9, 2016-08-25 08:07:26]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2016-08-25 08:07:53]

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, 2016-08-25 08:21:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-25 08:23:34]

Description was changed from

==========
Convert editing/before-after-input-element.html to use w3c test harness

This patch converts "editing/before-after-input-element.html" to use w3c test
harness to simplify test script for improving readability.

BUG=n/a
TEST=n/a; no behavior changes
==========

to

==========
Convert editing/before-after-input-element.html to use w3c test harness

This patch converts "editing/before-after-input-element.html" to use w3c test
harness to simplify test script for improving readability.

BUG=n/a
TEST=n/a; no behavior changes

Committed: https://crrev.com/596044410bd1c79dcbea07a4d09c5b7a963fd759
Cr-Commit-Position: refs/heads/master@{#414359}
==========

[commit-bot: I haz the power, 2016-08-25 08:23:35]

Patchset 1 (id:??) landed as
https://crrev.com/596044410bd1c79dcbea07a4d09c5b7a963fd759
Cr-Commit-Position: refs/heads/master@{#414359}