[webkit-reviews] review requested: [Bug 163640] Import the latest custom elements tests from W3C : [Attachment 292021] Reimports the tests

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 163640: Import the latest custom elements tests from W3C
https://bugs.webkit.org/show_bug.cgi?id=163640

Attachment 292021: Reimports the tests

https://bugs.webkit.org/attachment.cgi?id=292021&action=review