Make sure a test cannot be listed twice for one builder.

Make sure a test cannot be listed twice for one builder.

This check is now made at presubmit time, preventing hard to debug failure on
the infrastructure.

The failure mode is not obvious, the recipe throw an exception at trigger time
and this is hard to diagnose.

This fixes the problem before this is even sent to run as a try job.

Tested manually.

R=thakis@chromium.org
BUG=626766
Committed: https://crrev.com/1e0384f82f2670e949e59556925978118246be92
Cr-Commit-Position: refs/heads/master@{#405194}

[Nico, 2016-07-13 15:49:21]

lgtm

[M-A Ruel, 2016-07-13 15:50:52]

The CQ bit was checked by maruel@chromium.org

[commit-bot: I haz the power, 2016-07-13 15:51:19]

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, 2016-07-13 16:54:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-13 16:57:33]

Description was changed from

==========
Make sure a test cannot be listed twice for one builder.

This check is now made at presubmit time, preventing hard to debug failure on
the infrastructure.

The failure mode is not obvious, the recipe throw an exception at trigger time
and this is hard to diagnose.

This fixes the problem before this is even sent to run as a try job.

Tested manually.

R=thakis@chromium.org
BUG=626766
==========

to

==========
Make sure a test cannot be listed twice for one builder.

This check is now made at presubmit time, preventing hard to debug failure on
the infrastructure.

The failure mode is not obvious, the recipe throw an exception at trigger time
and this is hard to diagnose.

This fixes the problem before this is even sent to run as a try job.

Tested manually.

R=thakis@chromium.org
BUG=626766

Committed: https://crrev.com/1e0384f82f2670e949e59556925978118246be92
Cr-Commit-Position: refs/heads/master@{#405194}
==========

[commit-bot: I haz the power, 2016-07-13 16:57:34]

Patchset 1 (id:??) landed as
https://crrev.com/1e0384f82f2670e949e59556925978118246be92
Cr-Commit-Position: refs/heads/master@{#405194}