[webkit-reviews] review requested: [Bug 58342] Teach sub-selector chains about shadow descendants : [Attachment 90207] Patch

[bugzilla-daemon at webkit.org]

Dimitri Glazkov (Google) <dglazkov at chromium.org> has asked  for review:
Bug 58342: Teach sub-selector chains about shadow descendants
https://bugs.webkit.org/show_bug.cgi?id=58342

Attachment 90207: Patch
https://bugs.webkit.org/attachment.cgi?id=90207&action=review