[webkit-reviews] review requested: [Bug 155011] Add basic support for attributeChanged lifecycle callback : [Attachment 272842] Implements lifecycle callback

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 155011: Add basic support for attributeChanged lifecycle callback
https://bugs.webkit.org/show_bug.cgi?id=155011

Attachment 272842: Implements lifecycle callback

https://bugs.webkit.org/attachment.cgi?id=272842&action=review