[webkit-reviews] review requested: [Bug 56846] Incorrect rendering of composited element with negative z-index child : [Attachment 86509] Patch

[bugzilla-daemon at webkit.org]

Simon Fraser (smfr) <simon.fraser at apple.com> has asked	for review:
Bug 56846: Incorrect rendering of composited element with negative z-index
child
https://bugs.webkit.org/show_bug.cgi?id=56846

Attachment 86509: Patch
https://bugs.webkit.org/attachment.cgi?id=86509&action=review