Fix iOS code signing issue

Fix iOS code signing issue

Fix a bug where code signing on iOS would fail if the iPhone developer
identity is not the first item in the output of `security find-identity`

BUG=chromium:661944
Committed: https://crrev.com/784ae901cc0ee477e57f50d25f801f1ab17882f1
Cr-Commit-Position: refs/heads/master@{#429561}

[kthelgason_chromium, 2016-11-03 11:19:50]

kthelgason@chromium.org changed reviewers:
+ kjellander@chromium.org, sdefresne@chromium.org

[kthelgason_chromium, 2016-11-03 11:19:50]

please take a look

[kjellander_chromium, 2016-11-03 12:44:33]

lgtm

[sdefresne, 2016-11-03 13:27:41]

lgtm

[kthelgason_chromium, 2016-11-03 13:30:51]

The CQ bit was checked by kthelgason@chromium.org

[commit-bot: I haz the power, 2016-11-03 13:31:11]

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, 2016-11-03 13:40:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-03 13:42:55]

Description was changed from

==========
Fix iOS code signing issue

Fix a bug where code signing on iOS would fail if the iPhone developer
identity is not the first item in the output of `security find-identity`

BUG=chromium:661944
==========

to

==========
Fix iOS code signing issue

Fix a bug where code signing on iOS would fail if the iPhone developer
identity is not the first item in the output of `security find-identity`

BUG=chromium:661944

Committed: https://crrev.com/784ae901cc0ee477e57f50d25f801f1ab17882f1
Cr-Commit-Position: refs/heads/master@{#429561}
==========

[commit-bot: I haz the power, 2016-11-03 13:42:56]

Patchset 1 (id:??) landed as
https://crrev.com/784ae901cc0ee477e57f50d25f801f1ab17882f1
Cr-Commit-Position: refs/heads/master@{#429561}