[webkit-reviews] review requested: [Bug 138855] Give clients a way to cancel preview popovers : [Attachment 241839] Patch

[bugzilla-daemon at webkit.org]

Conrad Shultz <conrad_shultz at apple.com> has asked  for review:
Bug 138855: Give clients a way to cancel preview popovers
https://bugs.webkit.org/show_bug.cgi?id=138855

Attachment 241839: Patch

https://bugs.webkit.org/attachment.cgi?id=241839&action=review