From `addColorStop(offset, color)`s spec:
If multiple stops are added at the same offset on a gradient, they must
be placed in the order added, with the first one closest to the start of
the gradient, and each subsequent one infinitesimally further along
towards the end point (in effect causing all but the first and last stop
added at each point to be ignored)
https://www.w3.org/html/test/results/2dcontext/annotated-spec/canvas.html#testrefs.2d.gradient.interpolate.overlapu
Removed createEvent cases, removed now-unused new_uninitializeds
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document.createEvent was creating some event types WHATWG now says shouldn't be created that way. This was the only caller of a few new_uninitialized methods, so those are removed too.
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De-deplicate is_cors_safelisted_request_header helper functions
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Separate is_cors_safelisted_request_header implementations in script::dom::request and net::fetch::methods have been merged to a single implementation in net_traits::request, with additional logic for spec requirements that weren't previously there. This doesn't pass all the failing tests, but it doesn't fail any passing ones either and it reduces confusion about what's supposed to happen where.
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Named form getter
This PR contains changes related to adding named getter in Servo for getting the list of all meaningful property names for a HTMLFormElement object, and getting the value of a specific property name. The following changes have been made:
* uncomment the [named getter](f63b404e0c/components/script/dom/webidls/HTMLFormElement.webidl (L30)) from HTMLFormElement.webidl
* add the missing `NamedGetter` and `SupportedPropertyNames` methods to [HTMLFormElement](f63b404e0c/components/script/dom/htmlformelement.rs (L113))
* implement `SupportedPropertyNames` according to [the specification](https://html.spec.whatwg.org/multipage/forms.html#the-form-element:supported-property-names):
* create an enum to represent the `id`, `name`, and `past` states for the sourced names
* create a vector of `(SourcedName, DomRoot<HTMLElement>)` by iterating over `self.controls` and checking the element type and calling methods like `HTMLElement::is_listed_element`
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- [x] These changes fix#16479 (GitHub issue number if applicable)
`worker_id` type changed to uuid
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Fixes#6631
`worker_id` is now generate as uuid and saved as string.
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Font code is the only thing that was using Au in the style system without
interfacing with Gecko, and there was no real reason for it to do so.
This slightly simplifies the code.
Differential Revision: https://phabricator.services.mozilla.com/D57248
