Add XRFrame.getPose()
I think I've figured out the model of poses, waiting on Nell for confirmation.
Basically, `getViewerPose(p)` is equivalent to `getPose(source=viewerSpace, relative_to=p)`
The eye-level space, for example, is stationary and stuck to the origin. The position-disabled and identity spaces somewhat counterintuitively follow you around (and appear to be stationary from `getViewerPose()` but not `getPose()`.
The incorrect mental model kinda "works" when looking at only `getViewerPose()`, but we need to figure it out for `getPose()`.
Todo (may add to this PR, but probably not)
- implement `XRSession.viewerSpace`
- implement position-disabled
- implement floor-level (hard to test without a 6dof device)
r? @asajeffrey
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Add connectEnd attribute to PerformanceResourceTiming interface
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Users are supposed to use `view.transform.inverse.matrix`
The view matrix was incorrect anyway, we had forgotten to invert it, but that was okay since we transposed it by accident (due to euclid's use of the row-vector convention), and for 3DOF devices these transforms are mostly rotations so transposing instead of inverting doesn't lead to visible effects.
Properly support transforms in WebXR
Still need to test this
There are also a bunch of fixmes that I should get to in this PR.
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Implement dom exception constructor
The constructor method was implemented
I have a question: should I edit `./mach test-wpt` expectations?
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Update StyleSheet.insertRule WebIDL to make index optional.
Update wpt metadata to show the new passes.
Add one test as crashing since currently passing an \@import rule to insertRule
leads to "Expected a stylesheet loader for \@import"
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Update wpt metadata to show the new passes.
Add one test as crashing since currently passing an @import rule to insertRule
leads to "Expected a stylesheet loader for @import"
Fixes#23025
Added AudioTrack, AudioTrackList, VideoTrack, and VideoTrackList inte…
…rfaces
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Added AudioTrack, AudioTrackList, VideoTrack, VideoTrackList, and TrackEvent interfaces to support multiple media tracks.
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Implement historical returnValue attribute for Event interface
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Implementation of `returnValue` attribute for Event interface.
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