Implement search answer "dark run" mode.

Implement search answer "dark run" mode.

This mode is controlled via variations server. In this mode, cards a loaded, perhaps from some mock location, but the results are not shown (i.e. the view size is set to 0) to the user.

Bug=712331
Review-Url: https://codereview.chromium.org/2878503004
Cr-Commit-Position: refs/heads/master@{#471014}
Committed: https://chromium.googlesource.com/chromium/src/+/3a48bde6db70230fcb838ad8d055f33b80512cad

[vadimt, 2017-05-10 22:21:04]

Description was changed from

==========
Implement search answer "dark run" mode.

This mode is controlled via variations server. In this mode, cards a loaded,
perhaps from some mock location, but the results are not shown to the suer.

Bug=712331
==========

to

==========
Implement search answer "dark run" mode.

This mode is controlled via variations server. In this mode, cards a loaded,
perhaps from some mock location, but the results are not shown (i.e. the view
size is set to 0) to the user.

Bug=712331
==========

[vadimt, 2017-05-10 22:21:59]

vadimt@chromium.org changed reviewers:
+ xiyuan@chromium.org

[xiyuan, 2017-05-11 01:41:27]

lgtm

[vadimt, 2017-05-11 17:36:02]

The CQ bit was checked by vadimt@chromium.org

[commit-bot: I haz the power, 2017-05-11 17:37:02]

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, 2017-05-11 18:35:10]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494524162657550, "parent_rev":
"2928c63356681aa17fcaa112dc7d6bd3bc29e6d8", "commit_rev":
"3a48bde6db70230fcb838ad8d055f33b80512cad"}

[commit-bot: I haz the power, 2017-05-11 18:35:20]

Description was changed from

==========
Implement search answer "dark run" mode.

This mode is controlled via variations server. In this mode, cards a loaded,
perhaps from some mock location, but the results are not shown (i.e. the view
size is set to 0) to the user.

Bug=712331
==========

to

==========
Implement search answer "dark run" mode.

This mode is controlled via variations server. In this mode, cards a loaded,
perhaps from some mock location, but the results are not shown (i.e. the view
size is set to 0) to the user.

Bug=712331

Review-Url: https://codereview.chromium.org/2878503004
Cr-Commit-Position: refs/heads/master@{#471014}
Committed:
https://chromium.googlesource.com/chromium/src/+/3a48bde6db70230fcb838ad8d055...
==========

[commit-bot: I haz the power, 2017-05-11 18:35:21]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/3a48bde6db70230fcb838ad8d055...