[webkit-reviews] review requested: [Bug 197939] Avoid a recursive descendants layer walk sometimes : [Attachment 370020] Patch

[bugzilla-daemon at webkit.org]

Simon Fraser (smfr) <simon.fraser at apple.com> has asked	for review:
Bug 197939: Avoid a recursive descendants layer walk sometimes
https://bugs.webkit.org/show_bug.cgi?id=197939

Attachment 370020: Patch

https://bugs.webkit.org/attachment.cgi?id=370020&action=review




--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Created attachment 370020

  --> https://bugs.webkit.org/attachment.cgi?id=370020&action=review

Patch