[webkit-reviews] review requested: [Bug 74639] Add ScrollingCoordinator class and ENABLE_THREADED_SCROLLING define : [Attachment 119483] Patch

[bugzilla-daemon at webkit.org]

Anders Carlsson <andersca at apple.com> has asked	for review:
Bug 74639: Add ScrollingCoordinator class and ENABLE_THREADED_SCROLLING define
https://bugs.webkit.org/show_bug.cgi?id=74639

Attachment 119483: Patch
https://bugs.webkit.org/attachment.cgi?id=119483&action=review