[webkit-reviews] review requested: [Bug 57202] Allow setting composited backing stores for scrollbars and scroll corners : [Attachment 87824] Patch

[bugzilla-daemon at webkit.org]

James Robinson <jamesr at chromium.org> has asked	for review:
Bug 57202: Allow setting composited backing stores for scrollbars and scroll
corners
https://bugs.webkit.org/show_bug.cgi?id=57202

Attachment 87824: Patch
https://bugs.webkit.org/attachment.cgi?id=87824&action=review