Fix types in display_options.js

Fix types in display_options.js

This adds and fixes some types in display_options.js, in preparation
for re-factoring it to support multiple displays.

BUG=576375
Committed: https://crrev.com/26e3461a0c2f6a1a6be9272af332421c775aa74c
Cr-Commit-Position: refs/heads/master@{#370749}

[stevenjb, 2016-01-21 03:56:17]

stevenjb@chromium.org changed reviewers:
+ xiyuan@chromium.org

[stevenjb, 2016-01-21 03:56:17]

https://codereview.chromium.org/1612873002/diff/1/chrome/browser/resources/op...
File chrome/browser/resources/options/chromeos/display_options.js (left):

https://codereview.chromium.org/1612873002/diff/1/chrome/browser/resources/op...
chrome/browser/resources/options/chromeos/display_options.js:109: }
Unused

[xiyuan, 2016-01-21 16:13:48]

lgtm

[stevenjb, 2016-01-21 18:30:38]

The CQ bit was checked by stevenjb@chromium.org

[commit-bot: I haz the power, 2016-01-21 18:30:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1612873002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1612873002/1

[commit-bot: I haz the power, 2016-01-21 19:36:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-21 19:37:39]

Description was changed from

==========
Fix types in display_options.js

This adds and fixes some types in display_options.js, in preparation
for re-factoring it to support multiple displays.

BUG=576375
==========

to

==========
Fix types in display_options.js

This adds and fixes some types in display_options.js, in preparation
for re-factoring it to support multiple displays.

BUG=576375

Committed: https://crrev.com/26e3461a0c2f6a1a6be9272af332421c775aa74c
Cr-Commit-Position: refs/heads/master@{#370749}
==========

[commit-bot: I haz the power, 2016-01-21 19:37:40]

Patchset 1 (id:??) landed as
https://crrev.com/26e3461a0c2f6a1a6be9272af332421c775aa74c
Cr-Commit-Position: refs/heads/master@{#370749}