[webkit-reviews] review requested: [Bug 157631] Optimize layer repaint rects to compute less often : [Attachment 278843] Patch

[bugzilla-daemon at webkit.org]

Dave Hyatt <hyatt at apple.com> has asked	for review:
Bug 157631: Optimize layer repaint rects to compute less often
https://bugs.webkit.org/show_bug.cgi?id=157631

Attachment 278843: Patch

https://bugs.webkit.org/attachment.cgi?id=278843&action=review