Add a command-line flag for overriding variations country.

Add a command-line flag for overriding variations country.

BUG=725294
Review-Url: https://codereview.chromium.org/2914163003
Cr-Commit-Position: refs/heads/master@{#476797}
Committed: https://chromium.googlesource.com/chromium/src/+/424a0fd2d03d63853f57258fdbd08ba5751dae17

[Alexei Svitkine (slow), 2017-06-01 20:35:16]

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

[commit-bot: I haz the power, 2017-06-01 20:35:38]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Alexei Svitkine (slow), 2017-06-02 00:21:18]

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

[rkaplow, 2017-06-02 18:03:49]

lgtm

[Alexei Svitkine (slow), 2017-06-02 18:08:15]

The CQ bit was checked by asvitkine@chromium.org

[commit-bot: I haz the power, 2017-06-02 18:08:57]

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, 2017-06-02 21:22:40]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1496426895410430,
"parent_rev": "5e56378a4010596474851b57a8fccf49ea0c88f6", "commit_rev":
"424a0fd2d03d63853f57258fdbd08ba5751dae17"}

[commit-bot: I haz the power, 2017-06-02 21:22:50]

Description was changed from

==========
Add a command-line flag for overriding variations country.

BUG=725294
==========

to

==========
Add a command-line flag for overriding variations country.

BUG=725294

Review-Url: https://codereview.chromium.org/2914163003
Cr-Commit-Position: refs/heads/master@{#476797}
Committed:
https://chromium.googlesource.com/chromium/src/+/424a0fd2d03d63853f57258fdbd0...
==========

[commit-bot: I haz the power, 2017-06-02 21:22:51]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/424a0fd2d03d63853f57258fdbd0...