HTMLSelectElement.item() does not behave according to specification

HTMLSelectElement.item() does not behave according to specification

HTMLSelectElement.item() does not behave according to specification:
http://www.w3.org/TR/html51/forms.html#dom-select-item
http://dom.spec.whatwg.org/#dom-htmlcollection-item

Namely, we should not throw if the offset argument is negative. Also,
the argument should be mandatory.

IE10 and Firefox do not throw when HTMLSelectElement.item() is called
with a negative value (as per the specification).

The argument is mandatory in Firefox but optional in IE10 (it returns
null when called without argument). This looks like a bug in IE because
other item() getters' argument is usually mandatory in IE (e.g.
NodeList.item()).

BUG=237739
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=155515

[haraken, 2013-08-02 13:39:52]

LGTM. Needs an approval from an API owner.

[arv (Not doing code reviews), 2013-08-02 14:03:02]

LGTM

You have a typo in the CL description. 

The argument is mandatory _in_ Firefox

[tkent, 2013-08-04 22:30:11]

lgtm

> LayoutTests/fast/html/select-element-item-argument.html

It should be in fast/dom/HTMLSelectElement/ or fast/forms/select/.

[commit-bot: I haz the power, 2013-08-05 06:50:52]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ch.dumez@sisa.samsung.com/21834002/11001

[commit-bot: I haz the power, 2013-08-05 08:17:23]

Change committed as 155515