[webkit-reviews] review requested: [Bug 137978] Avoid repeated is<MutableStyleProperties>() checks in StyleProperties : [Attachment 240290] Patch

[bugzilla-daemon at webkit.org]

Chris Dumez <cdumez at apple.com> has asked  for review:
Bug 137978: Avoid repeated is<MutableStyleProperties>() checks in
StyleProperties
https://bugs.webkit.org/show_bug.cgi?id=137978

Attachment 240290: Patch

https://bugs.webkit.org/attachment.cgi?id=240290&action=review