[quicwg/base-drafts] Replace SETTINGS with EXTENDED_SETTINGS (#80)

[Mike Bishop <[e-mail]>]

[EXTENDED_SETTINGS](https://tools.ietf.org/html/draft-bishop-httpbis-extended-settings-01) was proposed in the HTTP WG as an extension providing an alternative to the HTTP/2 SETTINGS frame.  While feedback was that it was "the design we should have had for HTTP/2... more general, saves space in most cases, and includes a flag to request acknowledgment", there was also a feeling that as an extension it was overkill since most things that needed settings already used SETTINGS.  The advice was to hold it for HTTP/QUIC and make it the default SETTINGS frame there.  So here it is.

Note that while it uses a slightly different ACK mechanism than HTTP/2 SETTINGS, it's subject to the same timing issues as HTTP/2 SETTINGS ACK over QUIC, namely that you can't know when the setting change has been applied on each stream.  This pull request doesn't fix that; it's tracked by #75 still.
You can view, comment on, or merge this pull request online at:

  https://github.com/quicwg/base-drafts/pull/80

-- Commit Summary --

  * Replace SETTINGS with EXTENDED_SETTINGS

-- File Changes --

    M draft-ietf-quic-http.md (183)

-- Patch Links --

https://github.com/quicwg/base-drafts/pull/80.patch
https://github.com/quicwg/base-drafts/pull/80.diff

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