Add support for permissions that have an associated Feature Policy

[raymeskhoury]

This adds support for denying access to permissions which are not
allowed in the current context based on an associated Feature Policy.
The Feature Name and Default Allowlist of a policy-controlled feature
must still be declared in the owning spec. This also removes specific
support for the media feature policy which is covered by the more
general support.

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Preview | Diff

[raymeskhoury]

@jyasskin ptal :)

[raymeskhoury]

Btw, I'm still getting a bikeshed error with top-of-tree:
FATAL ERROR: IDL SYNTAX ERROR LINE: 1 - skipped: "PermissionName"
✘ Did not generate, due to fatal errors
make: *** [index.html] Error 1

Removing highlight='idl' from <pre highlight='idl' link-for="PermissionName"> seems to fix it but I don't know if I'm doing something wrong.

[jan-ivar]

@raymeskhoury Any progress here?

[raymeskhoury]

@jyasskin are you ok to merge this?

[jyasskin]

The change looks good to me, with an update to match Feature Policy changes since you wrote it. I'm sorry for taking so long to look at this.

[jan-ivar]

@raymeskhoury Can this be merged?

[raymeskhoury]

@jan-ivar sorry for the long delay while I was distracted with other projects.

@jyasskin please see the updated PR.

[raymeskhoury]

@marcoscaceres: jyasskin is on leave. He's approved this and I've addressed his minor comments and rebased. Are you able to merge it? Thanks!

[jan-ivar]

Thanks @marcoscaceres! Oddly, https://w3c.github.io/permissions/ still isn't reflecting github tip.

Does someone need to pull a crank or something?

[marcoscaceres]

Hmm... Travis was supposed to run the deploy script. Might need to run it manually.

[marcoscaceres]

manually pulled the crank https://w3c.github.io/permissions/