[whatwg] Update to the Adoption Agency Algorithm

[Simon Pieters]

Hi,

From: Gervase Markham <gerv at mozilla.org>
>It's much harder to spot them when they are dynamically generated by
>e.g. a cloneNode operation. You can't submit your browser's DOM tree to
>the validator...

Browsers could mark all errors as red in view source. In Firefox you can 
select a piece of text and view selection source, which will bring up the 
serialized DOM. Browsers could also log all HTML parse errors in a console, 
just like Firefox currently logs CSS parse errors and XML parse errors in 
the JavaScript Console.

Regards,
Simon Pieters