[webkit-reviews] review requested: [Bug 221236] Introduce ImageExtractionContentContainer and add UA shadow root support for image extraction : [Attachment 419090] WIP

[bugzilla-daemon at webkit.org]

Wenson Hsieh <wenson_hsieh at apple.com> has asked  for review:
Bug 221236: Introduce ImageExtractionContentContainer and add UA shadow root
support for image extraction
https://bugs.webkit.org/show_bug.cgi?id=221236

Attachment 419090: WIP

https://bugs.webkit.org/attachment.cgi?id=419090&action=review