[webkit-reviews] review requested: [Bug 128831] Add a way to efficiently thumbnail WKViews : [Attachment 224402] rebase

[bugzilla-daemon at webkit.org]

Tim Horton <thorton at apple.com> has asked  for review:
Bug 128831: Add a way to efficiently thumbnail WKViews
https://bugs.webkit.org/show_bug.cgi?id=128831

Attachment 224402: rebase
https://bugs.webkit.org/attachment.cgi?id=224402&action=review