[webkit-reviews] review requested: [Bug 78268] The scrolling tree should know more about the scrollbar state : [Attachment 126349] Patch

[bugzilla-daemon at webkit.org]

Anders Carlsson <andersca at apple.com> has asked	for review:
Bug 78268: The scrolling tree should know more about the scrollbar state
https://bugs.webkit.org/show_bug.cgi?id=78268

Attachment 126349: Patch
https://bugs.webkit.org/attachment.cgi?id=126349&action=review