[ios] Convert //ios/chrome/browser/tabs:unit_tests to ARC.

[ios] Convert //ios/chrome/browser/tabs:unit_tests to ARC.

BUG=None

Review-Url: https://codereview.chromium.org/2886763003
Cr-Commit-Position: refs/heads/master@{#473940}
Committed: https://chromium.googlesource.com/chromium/src/+/5634194e49b9dee7385e757ecdd4bd9fd2206065

[sdefresne, 2017-05-16 14:06:45]

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

[commit-bot: I haz the power, 2017-05-16 14:07:20]

Dry run: 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, 2017-05-16 16:09:39]

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

[commit-bot: I haz the power, 2017-05-16 16:09:40]

Dry run: Try jobs failed on following builders:
  ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)

[sdefresne, 2017-05-23 15:13:00]

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

[commit-bot: I haz the power, 2017-05-23 15:13:44]

Dry run: CQ is trying da patch.

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

[sdefresne, 2017-05-23 15:15:51]

The CQ bit was unchecked by sdefresne@chromium.org

[sdefresne, 2017-05-23 15:16:10]

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

[commit-bot: I haz the power, 2017-05-23 15:16:43]

Dry run: CQ is trying da patch.

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

[sdefresne, 2017-05-23 15:29:02]

sdefresne@chromium.org changed reviewers:
+ lpromero@chromium.org

[sdefresne, 2017-05-23 15:29:02]

Please take a look.

[lpromero, 2017-05-23 15:41:17]

lgtm

[sdefresne, 2017-05-23 16:11:41]

The CQ bit was unchecked by sdefresne@chromium.org

[sdefresne, 2017-05-23 16:11:45]

The CQ bit was checked by sdefresne@chromium.org

[commit-bot: I haz the power, 2017-05-23 16:12:39]

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, 2017-05-23 16:53:03]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1495555905783190,
"parent_rev": "2df25af11bbad658a261076cef020590b9988f9b", "commit_rev":
"5634194e49b9dee7385e757ecdd4bd9fd2206065"}

[commit-bot: I haz the power, 2017-05-23 16:53:17]

Description was changed from

==========
[ios] Convert //ios/chrome/browser/tabs:unit_tests to ARC.

BUG=None
==========

to

==========
[ios] Convert //ios/chrome/browser/tabs:unit_tests to ARC.

BUG=None

Review-Url: https://codereview.chromium.org/2886763003
Cr-Commit-Position: refs/heads/master@{#473940}
Committed:
https://chromium.googlesource.com/chromium/src/+/5634194e49b9dee7385e757ecdd4...
==========

[commit-bot: I haz the power, 2017-05-23 16:53:19]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/5634194e49b9dee7385e757ecdd4...