Convert track-webvtt* http tests to testharness.js

Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956
Committed: https://crrev.com/4594925725434f930cc1cd49c270c60ae91cb55a
Cr-Commit-Position: refs/heads/master@{#407163}

[Srirama, 2016-07-22 13:26:33]

Description was changed from

==========
fix

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

to

==========
Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of
video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956
==========

[Srirama, 2016-07-22 13:31:26]

srirama.m@samsung.com changed reviewers:
+ foolip@chromium.org, fs@opera.com

[Srirama, 2016-07-22 13:31:26]

PTAL

[fs, 2016-07-22 14:11:18]

lgtm

[Srirama, 2016-07-22 14:17:50]

The CQ bit was checked by srirama.m@samsung.com

[commit-bot: I haz the power, 2016-07-22 14:18:09]

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, 2016-07-22 15:20:29]

Description was changed from

==========
Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of
video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956
==========

to

==========
Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of
video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956
==========

[commit-bot: I haz the power, 2016-07-22 15:20:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-22 15:22:23]

Description was changed from

==========
Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of
video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956
==========

to

==========
Convert track-webvtt* http tests to testharness.js

Cleaning up track-webvtt* http tests to use testharness.js instead of
video-test.js.
This will enable to upstream these tests to web-platform-tests.

BUG=588956

Committed: https://crrev.com/4594925725434f930cc1cd49c270c60ae91cb55a
Cr-Commit-Position: refs/heads/master@{#407163}
==========

[commit-bot: I haz the power, 2016-07-22 15:22:24]

Patchset 1 (id:??) landed as
https://crrev.com/4594925725434f930cc1cd49c270c60ae91cb55a
Cr-Commit-Position: refs/heads/master@{#407163}