Add array traits for WTF::Vector.

Add array traits for WTF::Vector.

With this traits, in blink code a StructTraits can directly return WTF::Vector from its field getters or read mojo arrays as WTF::Vectors from DataView.

BUG=577686
Committed: https://crrev.com/a9ed6ac06479e1c77dfc9b596f93787e4ca7e993
Cr-Commit-Position: refs/heads/master@{#393584}

[yzshen1, 2016-05-13 17:04:19]

yzshen@chromium.org changed reviewers:
+ rockot@chromium.org

[yzshen1, 2016-05-13 17:04:20]

Hi, Ken.

Would you please take a look? Thanks!

[Ken Rockot(use gerrit already), 2016-05-13 17:06:45]

lgtm

[yzshen1, 2016-05-13 17:35:21]

The CQ bit was checked by yzshen@chromium.org

[commit-bot: I haz the power, 2016-05-13 17:35:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1979513004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1979513004/1

[commit-bot: I haz the power, 2016-05-13 18:14:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-13 18:16:30]

Description was changed from

==========
Add array traits for WTF::Vector.

With this traits, in blink code a StructTraits can directly return WTF::Vector
from its field getters or read mojo arrays as WTF::Vectors from DataView.

BUG=577686
==========

to

==========
Add array traits for WTF::Vector.

With this traits, in blink code a StructTraits can directly return WTF::Vector
from its field getters or read mojo arrays as WTF::Vectors from DataView.

BUG=577686

Committed: https://crrev.com/a9ed6ac06479e1c77dfc9b596f93787e4ca7e993
Cr-Commit-Position: refs/heads/master@{#393584}
==========

[commit-bot: I haz the power, 2016-05-13 18:16:32]

Patchset 1 (id:??) landed as
https://crrev.com/a9ed6ac06479e1c77dfc9b596f93787e4ca7e993
Cr-Commit-Position: refs/heads/master@{#393584}