Don't convert zero component value to 'auto' in clone__moz_image_region.
Currently Gecko treats 'auto' component value as zero for animation.
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https://bugzilla.mozilla.org/show_bug.cgi?id=1387951
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Enqueue attribute changed callback when replacing attr
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Make scroll-snap-{coordinate, destination} discrete animation.
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https://bugzilla.mozilla.org/show_bug.cgi?id=1387941
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Make -moz-appearance animatable
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Fix the conversion from Perspective into ComputedMatrix.
We convert a perspective function into a ComputedMatrix, but we apply the
perspective length to a wrong matrix item. We should put it into m34,
instead of m43. m43 is for translate parameter Z.
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We convert a perspective function into a ComputedMatrix, but we apply the
perspective length to a wrong matrix item. We should put it into m34,
instead of m43. m43 is for translate parameter Z.
Overhaul ComputedValues measurement, and add style structs measurement.
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See https://bugzilla.mozilla.org/show_bug.cgi?id=1387956.
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Introduce and derive ComputeSquaredDistance
This new trait merges the former `Animatable` methods `compute_distance` and `compute_squared_distance`.
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