Remove non-ARC code from the codebase.

Remove non-ARC code from the codebase.

BUG=webrtc:7198
Review-Url: https://codereview.webrtc.org/2702153004
Cr-Commit-Position: refs/heads/master@{#16765}
Committed: https://chromium.googlesource.com/external/webrtc/+/de6adbe0ba02a5a659db5f3abd809c668d146b69

[kthelgason, 2017-02-21 08:15:24]

kthelgason@webrtc.org changed reviewers:
+ henrika@webrtc.org, magjed@webrtc.org

[kthelgason, 2017-02-21 08:15:24]

Please take a look when time allows :)

[kthelgason, 2017-02-21 08:39:01]

The CQ bit was checked by kthelgason@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2017-02-21 08:39:03]

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

[commit-bot: I haz the power, 2017-02-21 08:41:34]

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

[commit-bot: I haz the power, 2017-02-21 08:41:35]

Dry run: Try jobs failed on following builders:
  ios32_sim_ios9_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios32_sim_ios9_dbg/buil...)
  ios_arm64_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_arm64_rel/builds/17558)
  mac_baremetal on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_baremetal/builds/19010)
  mac_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_rel/builds/23029)

[henrika_webrtc, 2017-02-21 08:57:14]

LGTM

[kthelgason, 2017-02-21 09:50:34]

Turns out the files originally removed were needed. 
thread.cc is a pure c++ file and can't use arc, so the @autoreleasepool
annotations would not have worked in any case.

[magjed_webrtc, 2017-02-21 13:33:01]

lgtm

[kthelgason, 2017-02-22 07:57:40]

The CQ bit was checked by kthelgason@webrtc.org

[kthelgason, 2017-02-22 07:57:41]

The patchset sent to the CQ was uploaded after l-g-t-m from henrika@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2702153004/#ps20001 (title:
"Remove non-ARC code from the codebase.")

[commit-bot: I haz the power, 2017-02-22 07:57:49]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-02-22 08:42:12]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1487750260485350,
"parent_rev": "59fc9030ea86656f8bf1135b56dced3917df4a1c", "commit_rev":
"de6adbe0ba02a5a659db5f3abd809c668d146b69"}

[commit-bot: I haz the power, 2017-02-22 08:42:18]

Description was changed from

==========
Remove non-ARC code from the codebase.

BUG=webrtc:7198
==========

to

==========
Remove non-ARC code from the codebase.

BUG=webrtc:7198

Review-Url: https://codereview.webrtc.org/2702153004
Cr-Commit-Position: refs/heads/master@{#16765}
Committed:
https://chromium.googlesource.com/external/webrtc/+/de6adbe0ba02a5a659db5f3ab...
==========

[commit-bot: I haz the power, 2017-02-22 08:42:20]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/external/webrtc/+/de6adbe0ba02a5a659db5f3ab...