Re: [presentation-api] Is a new Permission type required for presentation display availability?

I think we should add `presentation` only if it is used by some UA. At
 the moment, I don't think there is a need for it and it would be a 
no-op permission. I'm not sure it is worth it.

Regarding `midi`, it was added becaus of `sysex` being linked to a 
permission (at least in Chrome) and the design of midi is to _request_
 midi access. As a consequence, for completeness, instead of having a 
`midi-sysex` permission, we decided to have a design closer to the 
Midi API: there is a `midi` permission for which some boolean (like 
`sysex`) can be passed. Note that Chromium design is changing to allow
 `midi` to become a real permission. I do not know if Chrome will use 
it as a real permission but other content embedders (ie. 
Chromium-based projects like Opera) might have a midi permission.

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Received on Sunday, 7 February 2016 22:35:27 UTC