DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773, 627682
Review-Url: https://codereview.chromium.org/2899243003
Cr-Commit-Position: refs/heads/master@{#474217}
Committed: https://chromium.googlesource.com/chromium/src/+/7b451a789df9be84623fc114a4efe00f5e9dbb5e

[tkent, 2017-05-24 05:07:10]

Description was changed from

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K"

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

BUG=725773
==========

to

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to
class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773
==========

[tkent, 2017-05-24 05:07:25]

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

[tkent, 2017-05-24 05:07:25]

yosin@, would you review this please?

[yosin_UTC9, 2017-05-24 05:23:27]

lgtm

This is awesome Unicode feature.

Lower case of U+U+212A[1], Kelvin sign, "k" (U+006B)

According to Unicode Character Database[2], U+212A is an only code point
to map non-ASCII to ASCII in common case folding.


[1] http://www.fileformat.info/info/unicode/char/212A/index.htm
[2] http://www.unicode.org/Public/UCD/latest/ucd/CaseFolding.txt

[tkent, 2017-05-24 05:31:36]

Description was changed from

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to
class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773
==========

to

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to
class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773,627682
==========

[tkent, 2017-05-24 05:32:09]

The CQ bit was checked by tkent@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-05-24 05:33:34]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[tkent, 2017-05-24 08:18:06]

The CQ bit was unchecked by tkent@chromium.org

[tkent, 2017-05-24 08:18:08]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2017-05-24 08:18:24]

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, 2017-05-24 08:51:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495613888554070, "parent_rev":
"4e1eccb39e0ff041f8dd7d3124d6aa8828ad1faa", "commit_rev":
"7b451a789df9be84623fc114a4efe00f5e9dbb5e"}

[commit-bot: I haz the power, 2017-05-24 08:51:16]

Description was changed from

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to
class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773,627682
==========

to

==========
DOM: Fix an incorrect result of getElementsByClassName() in quirks mode.

document.getElementsByClassName('\u212a') matched to class="k" and class="K",
and did not match to class="K".  It should match only to
class="K".

Element::ClassNames() stores ASCII-lower class string, however
getElementsByClassName() applied FoldCase().

Also, this CL removes a unused data member of ClassCollection.

BUG=725773,627682

Review-Url: https://codereview.chromium.org/2899243003
Cr-Commit-Position: refs/heads/master@{#474217}
Committed:
https://chromium.googlesource.com/chromium/src/+/7b451a789df9be84623fc114a4ef...
==========

[commit-bot: I haz the power, 2017-05-24 08:51:17]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/7b451a789df9be84623fc114a4ef...