[webkit-reviews] review requested: [Bug 163640] Import the latest custom elements tests from W3C : [Attachment 292038] Adds CEReactions to more IDL files

[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 292038: Adds CEReactions to more IDL files

https://bugs.webkit.org/attachment.cgi?id=292038&action=review