Re: [csswg-drafts] [web-animations-2] Prefer phase based start / end delays over converting time based delays (#7749)

Since we now have animation-range for the attachment these non-time based timelines, I think it would be much simpler if we dropped all time-based values for their default values when applied to a non-time based timeline. The somewhat common case of assigning a non-time-based timeline on a time-based animation essentially fills the specified animation-range.

Applying this would mean removing the procedure for [converting time based animations to non-time based timelines](https://w3c.github.io/csswg-drafts/web-animations-2/#time-based-animation-to-a-proportional-animation) and instead using any time values as their initial values which would go down the "auto" duration path.

TLDR Proposal is:
Time based specified duration, start delay, and end delay will compute to their initial values ("auto", 0, 0) when applied to an animation using a non-time based timeline.

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Received on Monday, 13 March 2023 19:35:13 UTC