[webkit-reviews] review requested: [Bug 51907] Style selector should only be recalculated when the pending sheet count goes to zero : [Attachment 77945] patch

[bugzilla-daemon at webkit.org]

Antti Koivisto <koivisto at iki.fi> has asked  for review:
Bug 51907: Style selector should only be recalculated when the pending sheet
count goes to zero
https://bugs.webkit.org/show_bug.cgi?id=51907

Attachment 77945: patch
https://bugs.webkit.org/attachment.cgi?id=77945&action=review

------- Additional Comments from Antti Koivisto <koivisto at iki.fi>
Shark says this is a significant performance improvement on some sites with
lots of stylesheets. For example in Facebook the time spent in style resolve
during page loading is reduced by >30%.