[ios] Fixed memory management bug in TestJavaScriptDialogPresenter.

[ios] Fixed memory management bug in TestJavaScriptDialogPresenter.

Copy strings before passing them to scoped_nsobjects.

BUG=679032
Review-Url: https://codereview.chromium.org/2612423003
Cr-Commit-Position: refs/heads/master@{#442093}
Committed: https://chromium.googlesource.com/chromium/src/+/1d41c27d99e1f50349bee096fa92efe91635c9f1

[Eugene But (OOO till 7-30), 2017-01-06 23:14:26]

The CQ bit was checked by eugenebut@chromium.org to run a CQ dry run

[Eugene But (OOO till 7-30), 2017-01-06 23:14:34]

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

[commit-bot: I haz the power, 2017-01-06 23:14:57]

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

[Eugene But (OOO till 7-30), 2017-01-06 23:16:42]

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

[rohitrao (ping after 24h), 2017-01-06 23:18:53]

lgtm

[Eugene But (OOO till 7-30), 2017-01-06 23:20:52]

The CQ bit was unchecked by eugenebut@chromium.org

[Eugene But (OOO till 7-30), 2017-01-06 23:20:54]

The CQ bit was checked by eugenebut@chromium.org

[commit-bot: I haz the power, 2017-01-06 23:21:17]

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, 2017-01-06 23:26:42]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483744854397290, "parent_rev":
"c70beeafc5b50c1f7c00ab6aeb9577268b251a3d", "commit_rev":
"1d41c27d99e1f50349bee096fa92efe91635c9f1"}

[commit-bot: I haz the power, 2017-01-06 23:27:13]

Description was changed from

==========
[ios] Fixed memory management bug in TestJavaScriptDialogPresenter.

Copy strings before passing them to scoped_nsobjects.

BUG=679032
==========

to

==========
[ios] Fixed memory management bug in TestJavaScriptDialogPresenter.

Copy strings before passing them to scoped_nsobjects.

BUG=679032

Review-Url: https://codereview.chromium.org/2612423003
Cr-Commit-Position: refs/heads/master@{#442093}
Committed:
https://chromium.googlesource.com/chromium/src/+/1d41c27d99e1f50349bee096fa92...
==========

[commit-bot: I haz the power, 2017-01-06 23:27:14]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1d41c27d99e1f50349bee096fa92...