DevTools: Fix eslint errors

DevTools: Fix eslint errors

Found these eslint errors on the new devtools buildbot I setup!

Right now, the buildbot is configured to be non-blocking (i.e. the errors
don't prevent commits from landing), but eventually it will be.

Eslint errors from buildbot:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.fyi%2FChromium_DevTools_Linux%2F475%2F%2B%2Frecipes%2Fsteps%2Frun_eslint%2F0%2Fstdout

BUG=none

Committed: https://crrev.com/8aacb7fc357ade50fe72bbd6149bd8c14b2a23c6
Cr-Commit-Position: refs/heads/master@{#417125}

[chenwilliam, 2016-09-07 19:31:58]

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

[chenwilliam, 2016-09-07 19:31:58]

PTAL.

[dgozman, 2016-09-07 22:09:51]

lgtm

This is great!

[chenwilliam, 2016-09-07 22:14:12]

The CQ bit was checked by chenwilliam@chromium.org

[commit-bot: I haz the power, 2016-09-07 22:14:59]

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, 2016-09-08 00:04:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-08 00:07:19]

Description was changed from

==========
DevTools: Fix eslint errors

Found these eslint errors on the new devtools buildbot I setup!

Right now, the buildbot is configured to be non-blocking (i.e. the errors
don't prevent commits from landing), but eventually it will be.

Eslint errors from buildbot:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.fyi%2FChromium_...

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

to

==========
DevTools: Fix eslint errors

Found these eslint errors on the new devtools buildbot I setup!

Right now, the buildbot is configured to be non-blocking (i.e. the errors
don't prevent commits from landing), but eventually it will be.

Eslint errors from buildbot:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.fyi%2FChromium_...

BUG=none

Committed: https://crrev.com/8aacb7fc357ade50fe72bbd6149bd8c14b2a23c6
Cr-Commit-Position: refs/heads/master@{#417125}
==========

[commit-bot: I haz the power, 2016-09-08 00:07:20]

Patchset 1 (id:??) landed as
https://crrev.com/8aacb7fc357ade50fe72bbd6149bd8c14b2a23c6
Cr-Commit-Position: refs/heads/master@{#417125}