[webkit-reviews] review requested: [Bug 137199] Use the new is<>() / downcast<>() for ShadowRoot and StyledElement : [Attachment 238830] Patch

[bugzilla-daemon at webkit.org]

Chris Dumez <cdumez at apple.com> has asked  for review:
Bug 137199: Use the new is<>() / downcast<>() for ShadowRoot and StyledElement
https://bugs.webkit.org/show_bug.cgi?id=137199

Attachment 238830: Patch
https://bugs.webkit.org/attachment.cgi?id=238830&action=review