[ObjC ARC] Converts ios/chrome/browser/ui/authentication:unit_tests to ARC.

[ObjC ARC] Converts ios/chrome/browser/ui/authentication:unit_tests to ARC.

Automatically generated ARCMigrate commit
Notable issues:None
BUG=624363
TEST=None

Review-Url: https://codereview.chromium.org/2675243003
Cr-Commit-Position: refs/heads/master@{#448575}
Committed: https://chromium.googlesource.com/chromium/src/+/09946a97b3d028d3f897d4fc113a0045c2cdf964

[lody, 2017-02-06 16:49:45]

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

[commit-bot: I haz the power, 2017-02-06 16:50:22]

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

[lody, 2017-02-06 17:37:10]

lod@chromium.org changed reviewers:
+ bzanotti@chromium.org, stkhapugin@chromium.org

[lody, 2017-02-06 17:37:11]

More arc conversions to review! Yaaay! 🎉

[commit-bot: I haz the power, 2017-02-06 18:00:32]

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

[commit-bot: I haz the power, 2017-02-06 18:00:33]

Dry run: This issue passed the CQ dry run.

[stkhapugin, 2017-02-06 18:03:48]

lgtm

[bzanotti, 2017-02-06 18:17:23]

lgtm

[lody, 2017-02-07 09:17:40]

The CQ bit was checked by lod@chromium.org

[commit-bot: I haz the power, 2017-02-07 09:17:50]

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, 2017-02-07 09:21:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486459060151510, "parent_rev":
"d8eebb4748e2c2bc2efe5bbcfd6a0d8fa0d0ddd4", "commit_rev":
"09946a97b3d028d3f897d4fc113a0045c2cdf964"}

[commit-bot: I haz the power, 2017-02-07 09:22:35]

Description was changed from

==========
[ObjC ARC] Converts ios/chrome/browser/ui/authentication:unit_tests to ARC.

Automatically generated ARCMigrate commit
Notable issues:None
BUG=624363
TEST=None
==========

to

==========
[ObjC ARC] Converts ios/chrome/browser/ui/authentication:unit_tests to ARC.

Automatically generated ARCMigrate commit
Notable issues:None
BUG=624363
TEST=None

Review-Url: https://codereview.chromium.org/2675243003
Cr-Commit-Position: refs/heads/master@{#448575}
Committed:
https://chromium.googlesource.com/chromium/src/+/09946a97b3d028d3f897d4fc113a...
==========

[commit-bot: I haz the power, 2017-02-07 09:22:36]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/09946a97b3d028d3f897d4fc113a...