[webkit-reviews] review requested: [Bug 129794] Remove 'visibilitychange' attribute event listener from document : [Attachment 225974] Patch

[bugzilla-daemon at webkit.org]

Jinwoo Song <jinwoo7.song at samsung.com> has asked  for review:
Bug 129794: Remove 'visibilitychange' attribute event listener from document
https://bugs.webkit.org/show_bug.cgi?id=129794

Attachment 225974: Patch
https://bugs.webkit.org/attachment.cgi?id=225974&action=review