[Autofill] Control using Variations the sending of Autofill field metadata

[Autofill] Control using Variations the sending of Autofill field metadata

We default most tests to having the trial enabled because that is the expected way forward. Nevertheless we put the trial so we can control rollout or kill it after the fact.

BUG=488602
TBR=asvitkine
TEST=FormStructureTest*,AutofillServerTest*

Committed: https://crrev.com/fef3d83eac2958b2e65297da7cccd384757deb6b
Cr-Commit-Position: refs/heads/master@{#330601}

[Mathieu, 2015-05-15 19:27:03]

mathp@chromium.org changed reviewers:
+ estade@chromium.org

[Mathieu, 2015-05-15 19:27:03]

Hi Evan, please have a look. Would like to have this in M44, but can merge later
if it doesn't make it.

[Mathieu, 2015-05-19 15:34:12]

Friendly ping.

[Evan Stade, 2015-05-19 16:15:44]

sorry for slowness -- lgtm

[Mathieu, 2015-05-19 18:02:32]

The CQ bit was checked by mathp@chromium.org

[commit-bot: I haz the power, 2015-05-19 18:04:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141133003/1

[commit-bot: I haz the power, 2015-05-19 18:11:58]

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

[commit-bot: I haz the power, 2015-05-19 18:11:59]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[Mathieu, 2015-05-19 18:16:00]

mathp@chromium.org changed reviewers:
+ asvitkine@chromium.org

[Mathieu, 2015-05-19 18:16:30]

Hi Alexei, I need your approval for adding variations as a DEPS...

Thanks

[Mathieu, 2015-05-19 20:15:00]

The CQ bit was checked by mathp@chromium.org

[commit-bot: I haz the power, 2015-05-19 20:15:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141133003/1

[Mathieu, 2015-05-19 20:15:45]

TBR asvitkine@ since the DEPS approval requirement is a bit silly

[Alexei Svitkine (slow), 2015-05-19 20:18:51]

lgtm

[commit-bot: I haz the power, 2015-05-19 20:50:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 20:51:49]

Patchset 1 (id:??) landed as
https://crrev.com/fef3d83eac2958b2e65297da7cccd384757deb6b
Cr-Commit-Position: refs/heads/master@{#330601}