[webkit-reviews] review requested: [Bug 86383] Scrolling is sluggish on pages with many relative elements : [Attachment 161660] Patch

[bugzilla-daemon at webkit.org]

Allan Sandfeld Jensen <allan.jensen at nokia.com> has asked  for review:
Bug 86383: Scrolling is sluggish on pages with many relative elements
https://bugs.webkit.org/show_bug.cgi?id=86383

Attachment 161660: Patch
https://bugs.webkit.org/attachment.cgi?id=161660&action=review

------- Additional Comments from Allan Sandfeld Jensen <allan.jensen at nokia.com>
Minimized patch. Fixes the hottest path of scrolling on platforms that does not
have overlay scrollbars. On platforms with overlay scrollbars, hit-testing
still need to be improved.