DevTools: add use strict in check gn

DevTools: add use strict in check gn

Needed for node v4 (I previously tested node w/ v7 which doesn't need it).

BUG=none

Review-Url: https://codereview.chromium.org/2929163002
Cr-Commit-Position: refs/heads/master@{#478384}
Committed: https://chromium.googlesource.com/chromium/src/+/cdaa8aeeaab0da73ea69ee456228fadd131a038e

[chenwilliam, 2017-06-09 18:37:55]

chenwilliam@chromium.org changed reviewers:
+ pfeldman@chromium.org

[chenwilliam, 2017-06-09 18:37:56]

ptal

[pfeldman, 2017-06-09 18:38:47]

lgtm

[chenwilliam, 2017-06-09 18:40:54]

The CQ bit was checked by chenwilliam@chromium.org

[commit-bot: I haz the power, 2017-06-09 18:41:29]

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, 2017-06-09 20:02:11]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497033654989570, "parent_rev":
"19dafabbd904fd024f93442b00ca27f7078f73cb", "commit_rev":
"cdaa8aeeaab0da73ea69ee456228fadd131a038e"}

[commit-bot: I haz the power, 2017-06-09 20:02:21]

Description was changed from

==========
DevTools: add use strict in check gn

Needed for node v4 (I previously tested node w/ v7 which doesn't need it).

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

to

==========
DevTools: add use strict in check gn

Needed for node v4 (I previously tested node w/ v7 which doesn't need it).

BUG=none

Review-Url: https://codereview.chromium.org/2929163002
Cr-Commit-Position: refs/heads/master@{#478384}
Committed:
https://chromium.googlesource.com/chromium/src/+/cdaa8aeeaab0da73ea69ee456228...
==========

[commit-bot: I haz the power, 2017-06-09 20:02:23]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/cdaa8aeeaab0da73ea69ee456228...