Use w3c test harness in editing/selection/vertical-*.html tests 2/3

Use w3c test harness in editing/selection/vertical-*.html tests 2/3

This patch makes editing/selection/vertical-*.html to use w3c test harness
rather than pixel match for ease of maintain.

This is the first patch of three patches of rewriting vertical-*.html.
Due by Windows command prompt limitation, we can't upload once.

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

Committed: https://crrev.com/af6fd5d7ea55f301c577f559e4a1f8ce9fc37b68
Cr-Commit-Position: refs/heads/master@{#361252}

[yosin_UTC9, 2015-11-20 08:06:09]

Description was changed from

==========
Use w3c test harness in editing/selection/vertical-*.html tests 1/3

This patch makes editing/selection/vertical-*.html to use w3c test harness
rather than pixel match for ease of maintain.

This is the first patch of three patches of rewriting vertical-*.html.
Due by Windows command prompt limitation, we can't upload once.

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

to

==========
Use w3c test harness in editing/selection/vertical-*.html tests 2/3

This patch makes editing/selection/vertical-*.html to use w3c test harness
rather than pixel match for ease of maintain.

This is the first patch of three patches of rewriting vertical-*.html.
Due by Windows command prompt limitation, we can't upload once.

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

[yosin_UTC9, 2015-11-20 08:06:10]

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

[yosin_UTC9, 2015-11-20 08:35:43]

PTAL

[yoichio, 2015-11-24 02:17:54]

lgtm

[yosin_UTC9, 2015-11-24 03:32:40]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2015-11-24 03:36:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1463673003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1463673003/1

[commit-bot: I haz the power, 2015-11-24 04:31:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-24 04:32:12]

Patchset 1 (id:??) landed as
https://crrev.com/af6fd5d7ea55f301c577f559e4a1f8ce9fc37b68
Cr-Commit-Position: refs/heads/master@{#361252}