[webkit-reviews] review requested: [Bug 54241] Enable ancestor identifier filtering for tree building : [Attachment 82048] patch

[bugzilla-daemon at webkit.org]

Antti Koivisto <koivisto at iki.fi> has asked  for review:
Bug 54241: Enable ancestor identifier filtering for tree building
https://bugs.webkit.org/show_bug.cgi?id=54241

Attachment 82048: patch
https://bugs.webkit.org/attachment.cgi?id=82048&action=review

------- Additional Comments from Antti Koivisto <koivisto at iki.fi>
Call CSSStyleSelector::push/popParent() during tree building too, fix up the
parent element stack as needed.

This roughly halves the remaining time in style matching over a typical page
load.