Re: [webcomponents] [Custom] attachedCallback and detechedCallback should be removed (#286)

The methods in Custom Elements spec certainly aren't the same what Gecko has.
The spec deals only with inserting/removing from a document in a browsing context, but
Gecko at least doesn't care whether there is browsing context and it gets a notification whenever ancestor chain has changed.
As bz said in https://lists.w3.org/Archives/Public/public-webapps/2015AprJun/0577.html

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Received on Tuesday, 21 July 2015 09:05:29 UTC