Move helpers_ios.cc/.h

Move helpers_ios.cc/.h

- Out from modules/utility/ and into modules/audio_device/ios/ - there they are used.

BUG=none

Committed: https://crrev.com/5de9b6a3ec7e909b2628840b50c06a26b28b899d
Cr-Commit-Position: refs/heads/master@{#15236}

[the sun, 2016-11-24 15:32:31]

solenberg@webrtc.org changed reviewers:
+ henrika@webrtc.org

[henrika_webrtc, 2016-11-24 15:40:06]

Thanks! LGTM

[the sun, 2016-11-24 15:52:02]

solenberg@webrtc.org changed reviewers:
+ perkj@webrtc.org

[the sun, 2016-11-24 15:52:03]

+perkj@, OWNER and demi-god of modules/utility/

[the sun, 2016-11-24 15:52:17]

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

[commit-bot: I haz the power, 2016-11-24 15:52:25]

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, 2016-11-24 16:11:13]

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

[commit-bot: I haz the power, 2016-11-24 16:11:14]

Dry run: This issue passed the CQ dry run.

[perkj_webrtc, 2016-11-25 08:41:58]

I wonder why.
rs lgtm

[the sun, 2016-11-25 08:45:24]

The CQ bit was checked by solenberg@webrtc.org

[commit-bot: I haz the power, 2016-11-25 08:45:31]

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, 2016-11-25 08:47:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480063524553670, "parent_rev":
"125c8ad46f1b4dc12020b8285066106d4f18de92", "commit_rev":
"eb93310b9329fd567b6ed259dffabf5c4215d26b"}

[commit-bot: I haz the power, 2016-11-25 08:47:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-25 08:47:21]

Description was changed from

==========
Move helpers_ios.cc/.h

- Out from modules/utility/ and into modules/audio_device/ios/ - there they are
used.

BUG=none
==========

to

==========
Move helpers_ios.cc/.h

- Out from modules/utility/ and into modules/audio_device/ios/ - there they are
used.

BUG=none

Committed: https://crrev.com/5de9b6a3ec7e909b2628840b50c06a26b28b899d
Cr-Commit-Position: refs/heads/master@{#15236}
==========

[commit-bot: I haz the power, 2016-11-25 08:47:22]

Patchset 1 (id:??) landed as
https://crrev.com/5de9b6a3ec7e909b2628840b50c06a26b28b899d
Cr-Commit-Position: refs/heads/master@{#15236}