[New Tab Page] Update Fakebox input type to url.

Update Fakebox input type to url. This should fix an issue with input events.

BUG=414841
Committed: https://crrev.com/9683216a28b76556b2369336e9d77a38c7907edc
Cr-Commit-Position: refs/heads/master@{#295508}

[rsadam, 2014-09-18 17:00:10]

rsadam@chromium.org changed reviewers:
+ mathp@chromium.org

[rsadam, 2014-09-18 17:00:11]

Hi mathp, PTAL!

[Mathieu, 2014-09-18 17:24:13]

As mentioned, please test all interactions carefully (copy, then paste using
right click on fakebox).

Also according to the sample here
(http://www.coreservlets.com/html5-tutorial/input-types.html), Chrome does some
validation on submit if the input is not a URL. Don't think it should affect,
but do test :)

if you're satisfied, lgtm

[rsadam, 2014-09-18 18:17:28]

Passed my manual tests, and beaudoin@ did some more as an extra sanity step -
seems we're good to go.

[rsadam, 2014-09-18 18:17:31]

The CQ bit was checked by rsadam@chromium.org

[commit-bot: I haz the power, 2014-09-18 18:19:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/579183003/1

[commit-bot: I haz the power, 2014-09-18 18:47:56]

Committed patchset #1 (id:1) as aadd61db7617b637aa6358c01f78702d7e84c6e4

[commit-bot: I haz the power, 2014-09-18 18:49:04]

Patchset 1 (id:??) landed as
https://crrev.com/9683216a28b76556b2369336e9d77a38c7907edc
Cr-Commit-Position: refs/heads/master@{#295508}