Add field trial testing config for Scout study.

Add field trial testing config for Scout study.

BUG=648292
Committed: https://crrev.com/9c5e2946272ea6778fbf23596142c7265d452cc4
Cr-Commit-Position: refs/heads/master@{#437640}

[lpz, 2016-12-09 17:24:42]

The CQ bit was checked by lpz@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-09 17:25:16]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[lpz, 2016-12-09 18:13:27]

lpz@chromium.org changed reviewers:
+ asvitkine@chromium.org, nparker@chromium.org

[Nathan Parker, 2016-12-09 18:54:15]

lgtm

https://codereview.chromium.org/2562103002/diff/1/testing/variations/fieldtri...
File testing/variations/fieldtrial_testing_config.json (right):

https://codereview.chromium.org/2562103002/diff/1/testing/variations/fieldtri...
testing/variations/fieldtrial_testing_config.json:1822: "name":
"CanShowScoutOptInGroup",
Last I heard, only the first experiment listed will be activated in tests.  So
this'll run bots w/ CanShowCoutOptInGroup.  Seems reasonable.

[Alexei Svitkine (slow), 2016-12-09 19:22:05]

lgtm

Nathan is correct but in the future we may set up bots to run the other groups.

[commit-bot: I haz the power, 2016-12-09 19:46:40]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-09 19:46:44]

Dry run: This issue passed the CQ dry run.

[lpz, 2016-12-09 19:58:51]

The CQ bit was checked by lpz@chromium.org

[commit-bot: I haz the power, 2016-12-09 20:00:00]

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, 2016-12-09 20:51:42]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481313531973490, "parent_rev":
"61b5ca9aaff36db8c474548de84256a322b55e6e", "commit_rev":
"6096412b620320bc8776c7e0bfd38c6030f51a8a"}

[commit-bot: I haz the power, 2016-12-09 20:52:12]

Description was changed from

==========
Add field trial testing config for Scout study.

BUG=648292
==========

to

==========
Add field trial testing config for Scout study.

BUG=648292

Review-Url: https://codereview.chromium.org/2562103002
==========

[commit-bot: I haz the power, 2016-12-09 20:52:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-12 14:40:22]

Description was changed from

==========
Add field trial testing config for Scout study.

BUG=648292

Review-Url: https://codereview.chromium.org/2562103002
==========

to

==========
Add field trial testing config for Scout study.

BUG=648292

Committed: https://crrev.com/9c5e2946272ea6778fbf23596142c7265d452cc4
Cr-Commit-Position: refs/heads/master@{#437640}
==========

[commit-bot: I haz the power, 2016-12-12 14:40:23]

Patchset 1 (id:??) landed as
https://crrev.com/9c5e2946272ea6778fbf23596142c7265d452cc4
Cr-Commit-Position: refs/heads/master@{#437640}