SELECT element: Introduce light-weight OPTION iterater.

SELECT element: Introduce light-weight OPTION iterater.

blink::OptionList iterates over OPTION elements of a SELECT element without
producing vector-like cache. It's useful to avoid listeItems() in critical
paths.

This CL should not have user-visible behaivor changes.

BUG=577989
Committed: https://crrev.com/32713e5ba38025b491292a51a139d45ab0f7d46b
Cr-Commit-Position: refs/heads/master@{#404100}

[tkent, 2016-07-07 04:33:25]

tkent@chromium.org changed reviewers:
+ keishi@chromium.org

[tkent, 2016-07-07 04:33:25]

Keishi, would you review this please?

[keishi, 2016-07-07 08:07:08]

LGTM

[tkent, 2016-07-07 08:11:57]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2016-07-07 08:12:06]

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, 2016-07-07 08:16:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-07 08:18:01]

Description was changed from

==========
SELECT element: Introduce light-weight OPTION iterater.

blink::OptionList iterates over OPTION elements of a SELECT element without
producing vector-like cache. It's useful to avoid listeItems() in critical
paths.

This CL should not have user-visible behaivor changes.

BUG=577989
==========

to

==========
SELECT element: Introduce light-weight OPTION iterater.

blink::OptionList iterates over OPTION elements of a SELECT element without
producing vector-like cache. It's useful to avoid listeItems() in critical
paths.

This CL should not have user-visible behaivor changes.

BUG=577989

Committed: https://crrev.com/32713e5ba38025b491292a51a139d45ab0f7d46b
Cr-Commit-Position: refs/heads/master@{#404100}
==========

[commit-bot: I haz the power, 2016-07-07 08:18:01]

Patchset 1 (id:??) landed as
https://crrev.com/32713e5ba38025b491292a51a139d45ab0f7d46b
Cr-Commit-Position: refs/heads/master@{#404100}