Remove canvas->compositing dependency
There's one tiny place in the canvas crate that depends on the compositing crate, and it's really quite backwards. If we use trait objects instead it becomes much cleaner to reason about.
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- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because no tests for windows-only webgl code.
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Upgrade WebRender
This is against an old Servo because I can't build current Servo due to compile errors in RNG crates. I verified that it starts up.
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- [x] These changes fix#23516
- [x] There are tests for these changes
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Sync WebIDL.py with gecko
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The new change requires default dictionary value for optional dictionary-type arguments.
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- [x] These changes fix#23703
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Use new WebXR API in script
Todo:
- [x] Hook new `Frame` information into `XRFrame`
- [x] Make spaces use new transform info
- [x] Hook up session view metadata correctly
- [x] Get mocking working again
- [x] Get inputs working
Optional todos:
- [x] Add support for active and animationFrame bool on XRFrame
- [x] Correctly handle viewer and offset spaces instead of casting
- [x] Error on zero-length quaternions
<s>Not really ready for review yet, but you can go ahead and review what I have so far. It doesn't do anything yet, aside from crash horribly. I'm opening this PR early so i have a place to track progress.</s>
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Load GST videofilter plugins.
The video playback tries to create a videobalance element and can't find it without this plugin.
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WebGLSender doesn't really implement Serializable
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Add an API which turns a `WebGLSender` into something that is actually serializable.
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Add clipboard cut functionality
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This PR adds clipboard cut functionality. #23735
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