[webkit-reviews] review requested: [Bug 74111] Some overlay scrollbar API calls in ScrollAnimatorMac can lead to an assertion in RenderBox::mapAbsoluteToLocalPoint : [Attachment 145022] Fix 2 + manual test that asserts

[bugzilla-daemon at webkit.org]

Ion Rosca <rosca at adobe.com> has asked  for review:
Bug 74111: Some overlay scrollbar API calls in ScrollAnimatorMac can lead to an
assertion in RenderBox::mapAbsoluteToLocalPoint
https://bugs.webkit.org/show_bug.cgi?id=74111

Attachment 145022: Fix 2 + manual test that asserts
https://bugs.webkit.org/attachment.cgi?id=145022&action=review