[webkit-reviews] review requested: [Bug 140517] [Win] Debug assertion when attempting to change style on button with multiple style references : [Attachment 252701] patch

[bugzilla-daemon at webkit.org]

Hyungwook Lee <hyungwook.lee at navercorp.com> has asked  for review:
Bug 140517: [Win] Debug assertion when attempting to change style on button
with multiple style references
https://bugs.webkit.org/show_bug.cgi?id=140517

Attachment 252701: patch

https://bugs.webkit.org/attachment.cgi?id=252701&action=review