Inherits ShorthandScope class from FastAllocBase because it has been instantiated by 'new' in WebCore/css/CSSParser.cpp:902.
Created attachment 42024 [details] proposed patch
Comment on attachment 42024 [details] proposed patch For many of these it would be better to inherit from Noncopyable instead of FastAllocBase.
Created attachment 42087 [details] updated to Noncopyable
Landed in 40273. https://trac.webkit.org/changeset/50273