Issue 212: RTCIceCandidate support for "generation"

Issue raised by Philipp Hancke:

https://lists.w3.org/Archives/Public/public-ortc/2015Jun/0010.html


"> 17) page 12, section 3.11 (RTCIceCandidate)

WebIDL
how does this deal with the extensibility defined in RFC 5245 --
https://tools.ietf.org/html/rfc5245#section-15.1 (extension-att-name etc)

[BA] It is possible to add variables to the dictionary. so it is possible to add new attributes for extension-att-name/extension-att-value. Do you think there is something missing in particular that needs to be added?


[Philipp] the generation attribute from
http://xmpp.org/extensions/xep-0176.html#protocol-syntax is pretty common."