[webkit-reviews] review requested: [Bug 164851] Add an experimental API to find elements across shadow boundaries : [Attachment 295019] Adds the feature

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 164851: Add an experimental API to find elements across shadow boundaries
https://bugs.webkit.org/show_bug.cgi?id=164851

Attachment 295019: Adds the feature

https://bugs.webkit.org/attachment.cgi?id=295019&action=review