commit 13fd76a041fb3443821e8d57eb396248af04208c
author Roger McFarlane <rogerm@chromium.org> Fri Nov 09 19:38:33 2018
committer Commit Bot <commit-bot@chromium.org> Fri Nov 09 19:38:33 2018
tree a975f0319109f68040e0446f9b6601b9f1af32e2
parent 4943b1d166f85579dfe1ff8a189c009d5aa02c79

[autofill] Add helpers to get the ARIA labels and descriptions

This CL adds the GetAriaLabel() and GetAriaDescription() helper functions
to the autofill::form_util namespace. These functions return the ARIA
label and description strings associated with an element.

The ARIA Label is the text referenced by one or more containing element
ids in the labelled elements aria-labelledby attribute, or the value
of the element's aria-label attribute, with preference given to the
aria-labelledby attribute. For example:

    <div id='foo-label'>Label for Foo</div>
    <input name='foo' aria-labelledby='foo-label'>
    <input name='bar' aria-label='Label for Bar'>

The aria-description is similar to aria-labelledby. For example:

    <div id='foo-description'>Long descriptive text for Foo</div>
    <input name='foo' aria-describedby='foo-descrition'>

Bug: 896719
Change-Id: Ida72c467d2e876b4d7a60ad56de56c7bac5489ec
Reviewed-on: https://chromium-review.googlesource.com/c/1325535
Commit-Queue: Roger McFarlane <rogerm@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606936}