Remove Earl Grey matcher APIs taking NSString.

Remove Earl Grey matcher APIs taking NSString.

std::string APIs provide cleaner code in tests, which have been adopted
by all tests.

BUG=614167
Committed: https://crrev.com/380c6cda0109db823121542b2c93783803f5aa33
Cr-Commit-Position: refs/heads/master@{#396014}

[baxley, 2016-05-25 21:09:09]

baxley@chromium.org changed reviewers:
+ eugenebut@chromium.org

[baxley, 2016-05-25 21:09:09]

Removing the NSString version of the matchers before any other tests start to
use them.

[Eugene But (OOO till 7-30), 2016-05-25 21:11:45]

The CQ bit was checked by eugenebut@chromium.org

[Eugene But (OOO till 7-30), 2016-05-25 21:11:46]

lgtm

[commit-bot: I haz the power, 2016-05-25 21:12:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2008183004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2008183004/1

[commit-bot: I haz the power, 2016-05-25 22:42:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-25 22:43:56]

Description was changed from

==========
Remove Earl Grey matcher APIs taking NSString.

std::string APIs provide cleaner code in tests, which have been adopted
by all tests.

BUG=614167
==========

to

==========
Remove Earl Grey matcher APIs taking NSString.

std::string APIs provide cleaner code in tests, which have been adopted
by all tests.

BUG=614167

Committed: https://crrev.com/380c6cda0109db823121542b2c93783803f5aa33
Cr-Commit-Position: refs/heads/master@{#396014}
==========

[commit-bot: I haz the power, 2016-05-25 22:43:57]

Patchset 1 (id:??) landed as
https://crrev.com/380c6cda0109db823121542b2c93783803f5aa33
Cr-Commit-Position: refs/heads/master@{#396014}