Add tryserver.infra to Rietveld.

Add tryserver.infra to Rietveld.

BUG=403494
Committed: https://chromium.googlesource.com/infra/infra/+/1f556d3a26310188ebd8e4b36282b0970e617de9

[Adrian Kuegel, 2015-08-12 13:14:47]

akuegel@chromium.org changed reviewers:
+ tandrii@chromium.org

[Adrian Kuegel, 2015-08-12 13:14:47]

PTAL

[Adrian Kuegel, 2015-08-12 13:17:17]

akuegel@chromium.org changed reviewers:
+ jrobbins@chromium.org

[tandrii(chromium), 2015-08-12 13:18:26]

The CQ bit was checked by tandrii@chromium.org

[tandrii(chromium), 2015-08-12 13:18:26]

lgtm

[commit-bot: I haz the power, 2015-08-12 13:18:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1283133004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1283133004/1

[commit-bot: I haz the power, 2015-08-12 13:21:33]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/infra/infra/+/1f556d3a26310188ebd8e4b36282b...

[tandrii(chromium), 2015-08-18 16:08:12]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1294023007/ by tandrii@chromium.org.

The reason for reverting is: Because we don't have and can't easily have
TryJobRietveld inside our master definition. So, let's not confuse people -
scheduling from Rietveld won't work.

See http://crbug.com/403494#42 for more..