[webkit-reviews] review requested: [Bug 107777] Split each RuleSet and feature out from StyleResolver into its own class. : [Attachment 186537] factor RuleSets and features

[bugzilla-daemon at webkit.org]

Hayato Ito <hayato at chromium.org> has asked  for review:
Bug 107777: Split each RuleSet and feature out from StyleResolver into its own
class.
https://bugs.webkit.org/show_bug.cgi?id=107777

Attachment 186537: factor RuleSets and features
https://bugs.webkit.org/attachment.cgi?id=186537&action=review