Implement `animation-fill-mode`
Fixes#26460.
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Introduce import.meta hook for module script
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- [x] These changes fix#26542
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layout_2020: Implement support for backface-visibility
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Allow BabylonJS playground to load
These changes fix the JS errors that currently appear when loading the page. You can't use the editor, but the webgl canvas works just fine.
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- [x] These changes fix#26428 and fix#25478
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Handle cancelAnimationFrame() when called within a requestAnimationFr…
…ame() callback
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In order to handle `cancelAnimationFrame()` in the callback, the `raf_callback_list` is moved to
`current_raf_callback_list`, and each callback is cloned in the iteration of `current_raf_callback_list` to avoid "borrowed twice".
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This removes an extra layer of abstraction and allows Servo to share
more code with Gecko. In addition, we will need to handle raw
`AnimationValue` structs soon in order to fully implement "faster
reversing of interrupted transitions."
Fix radial gradients for html canvas element
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The latest version of raqote provides a fix for properly handling boundary conditions for TwoCircleRadialGradients.
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Add support for getComputedStyle() to layout_2020
These changes add support for `getComputedStyle()` to layout_2020.
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This implementation is more-or-less on par with the one from layout_2013
and in some cases better. There are still some cases where we don't
return the correct "resolved value," but this is enough to test
animations and transitions.