Move ios_helpers to sdk folder

Move ios_helpers to sdk folder

BUG=webrtc:5582
Review-Url: https://codereview.webrtc.org/2572743004
Cr-Commit-Position: refs/heads/master@{#15649}
Committed: https://chromium.googlesource.com/external/webrtc/+/beafee3009ac5f17e9e18d9452c3ae8d29ca92b0

[kthelgason, 2016-12-14 09:20:15]

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

[kthelgason, 2016-12-14 09:20:16]

I'm splitting this work up into smaller CLs, of which this is the first. Next I
will dedup some of the code that also exists in UIDevice+RTCDevice.mm and
eventually get this helpers file to compile on mac so we can replace the n
implementations of getThreadCount scattered throughout the codebase.

[henrika_webrtc, 2016-12-14 10:38:00]

Great work.

LGTM

[tkchin_webrtc, 2016-12-15 22:29:15]

On 2016/12/14 10:38:00, henrika_webrtc wrote:
> Great work.
> 
> LGTM

lgtm

[kthelgason, 2016-12-16 09:56:46]

The CQ bit was checked by kthelgason@webrtc.org

[commit-bot: I haz the power, 2016-12-16 09:56:55]

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, 2016-12-16 10:12:43]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481882206743510, "parent_rev":
"8d66245cccdc1c6e3c5521de64934b0b9b9d8bf5", "commit_rev":
"beafee3009ac5f17e9e18d9452c3ae8d29ca92b0"}

[commit-bot: I haz the power, 2016-12-16 10:12:44]

Description was changed from

==========
Move ios_helpers to sdk folder

BUG=webrtc:5582
==========

to

==========
Move ios_helpers to sdk folder

BUG=webrtc:5582

Review-Url: https://codereview.webrtc.org/2572743004
Cr-Commit-Position: refs/heads/master@{#15649}
Committed:
https://chromium.googlesource.com/external/webrtc/+/beafee3009ac5f17e9e18d945...
==========

[commit-bot: I haz the power, 2016-12-16 10:12:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/beafee3009ac5f17e9e18d945...