[webkit-reviews] review requested: [Bug 137644] Use is<>() / downcast<>() for Filter / FilterOperation subclasses : [Attachment 239730] Patch

[bugzilla-daemon at webkit.org]

Chris Dumez <cdumez at apple.com> has asked  for review:
Bug 137644: Use is<>() / downcast<>() for Filter / FilterOperation subclasses
https://bugs.webkit.org/show_bug.cgi?id=137644

Attachment 239730: Patch
https://bugs.webkit.org/attachment.cgi?id=239730&action=review