[webkit-reviews] review requested: [Bug 200777] [ContentChangeObserver] Keep track of all the visibility candidates. : [Attachment 376402] Patch

[bugzilla-daemon at webkit.org]

zalan <zalan at apple.com> has asked  for review:
Bug 200777: [ContentChangeObserver] Keep track of all the visibility
candidates.
https://bugs.webkit.org/show_bug.cgi?id=200777

Attachment 376402: Patch

https://bugs.webkit.org/attachment.cgi?id=376402&action=review