[DevTools] Mark tests as slow

[DevTools] Mark tests as slow

http/tests/inspector/elements/styles/edit-css-with-source-url.html
http/tests/inspector-enabled/shadow-dom-rules-restart.html

Tests are slow on WebKit Linux Oulpan bot.

BUG=451577
TBR=pfeldman@chromium.org
NOTRY=true

Committed: https://crrev.com/4bcdaa935641c632c546917e0442ade23c0a01a2
Cr-Commit-Position: refs/heads/master@{#366683}

[kozy, 2015-12-22 23:06:09]

The CQ bit was checked by kozyatinskiy@chromium.org

[commit-bot: I haz the power, 2015-12-22 23:07:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1548823002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1548823002/1

[commit-bot: I haz the power, 2015-12-22 23:12:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-22 23:13:25]

Description was changed from

==========
[DevTools] Mark tests as slow

http/tests/inspector/elements/styles/edit-css-with-source-url.html
http/tests/inspector-enabled/shadow-dom-rules-restart.html

Tests are slow on WebKit Linux Oulpan bot.

BUG=451577
TBR=pfeldman@chromium.org
NOTRY=true
==========

to

==========
[DevTools] Mark tests as slow

http/tests/inspector/elements/styles/edit-css-with-source-url.html
http/tests/inspector-enabled/shadow-dom-rules-restart.html

Tests are slow on WebKit Linux Oulpan bot.

BUG=451577
TBR=pfeldman@chromium.org
NOTRY=true

Committed: https://crrev.com/4bcdaa935641c632c546917e0442ade23c0a01a2
Cr-Commit-Position: refs/heads/master@{#366683}
==========

[commit-bot: I haz the power, 2015-12-22 23:13:25]

Patchset 1 (id:??) landed as
https://crrev.com/4bcdaa935641c632c546917e0442ade23c0a01a2
Cr-Commit-Position: refs/heads/master@{#366683}