[Sync] Move SyncBackendRegistrar to engine/

[Sync] Move SyncBackendRegistrar to engine/

BUG=663125, 669967
Committed: https://crrev.com/505aa3369bae1fb86a30ba25b093a25535d98858
Cr-Commit-Position: refs/heads/master@{#437157}

[maxbogue, 2016-12-07 19:07:14]

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

[commit-bot: I haz the power, 2016-12-07 19:07:51]

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

[maxbogue, 2016-12-07 20:38:55]

maxbogue@chromium.org changed reviewers:
+ pavely@chromium.org

[maxbogue, 2016-12-07 20:38:55]

Pavel, PTAL. This is just a mechanical file move.

[commit-bot: I haz the power, 2016-12-07 21:15:47]

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

[commit-bot: I haz the power, 2016-12-07 21:15:48]

Dry run: This issue passed the CQ dry run.

[pavely, 2016-12-08 00:12:57]

lgtm

[maxbogue, 2016-12-08 02:30:53]

The CQ bit was checked by maxbogue@chromium.org

[commit-bot: I haz the power, 2016-12-08 02:31:18]

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, 2016-12-08 02:40:26]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481164253769470, "parent_rev":
"ac6b9a1f2095b42bd5aa2a7dc69be1de493b8b85", "commit_rev":
"14c033abd1438674b2803f47198f61cae919291b"}

[commit-bot: I haz the power, 2016-12-08 02:40:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-08 02:44:19]

Description was changed from

==========
[Sync] Move SyncBackendRegistrar to engine/

BUG=663125,669967
==========

to

==========
[Sync] Move SyncBackendRegistrar to engine/

BUG=663125,669967

Committed: https://crrev.com/505aa3369bae1fb86a30ba25b093a25535d98858
Cr-Commit-Position: refs/heads/master@{#437157}
==========

[commit-bot: I haz the power, 2016-12-08 02:44:20]

Patchset 1 (id:??) landed as
https://crrev.com/505aa3369bae1fb86a30ba25b093a25535d98858
Cr-Commit-Position: refs/heads/master@{#437157}