[webkit-reviews] review requested: [Bug 109560] Implement coordinated scrollbar for subframes and sublayers : [Attachment 188261] Patch

[bugzilla-daemon at webkit.org]

Tien-Ren Chen <trchen at chromium.org> has asked  for review:
Bug 109560: Implement coordinated scrollbar for subframes and sublayers
https://bugs.webkit.org/show_bug.cgi?id=109560

Attachment 188261: Patch
https://bugs.webkit.org/attachment.cgi?id=188261&action=review