Add slow test decorator

Add slow test decorator

BUG=712688
Review-Url: https://codereview.chromium.org/2834813003
Cr-Commit-Position: refs/heads/master@{#466409}
Committed: https://chromium.googlesource.com/chromium/src/+/783fbbe4d912374f3211bb5b8e2b6f0ee847a0e8

[Robert Ogden, 2017-04-21 18:38:43]

robertogden@chromium.org changed reviewers:
+ ryansturm@chromium.org

[Robert Ogden, 2017-04-21 18:38:44]

Ryan, please take a look :)

[RyanSturm, 2017-04-21 18:55:57]

lgtm

[Robert Ogden, 2017-04-21 19:05:58]

The CQ bit was checked by robertogden@chromium.org

[commit-bot: I haz the power, 2017-04-21 19:06:32]

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, 2017-04-21 19:18:00]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1492801558182930, "parent_rev":
"ad7c666c1519b9d48dea5dd224d4d6f30bced38b", "commit_rev":
"783fbbe4d912374f3211bb5b8e2b6f0ee847a0e8"}

[commit-bot: I haz the power, 2017-04-21 19:18:12]

Description was changed from

==========
Add slow test decorator

BUG=712688
==========

to

==========
Add slow test decorator

BUG=712688

Review-Url: https://codereview.chromium.org/2834813003
Cr-Commit-Position: refs/heads/master@{#466409}
Committed:
https://chromium.googlesource.com/chromium/src/+/783fbbe4d912374f3211bb5b8e2b...
==========

[commit-bot: I haz the power, 2017-04-21 19:18:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/783fbbe4d912374f3211bb5b8e2b...