Bug 1962598 Comment 2 Edit History

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Original comment by
on 
Breakdown:

* Save `@position-try` data in `CacadeData`: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#2910), [2](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#3681)
* Implement lookup for `@position-try` declarations by name in `Stylist`: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#1507)
* Implement declaration -> computed value conversion [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/ports/geckolib/glue.rs#7052)
* Expose to layout: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/ports/geckolib/glue.rs#7187)
* Trigger reflow using overridden values (Something smiliar to [this](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/layout/base/LayoutStructs.h#25))
* Ensure that `getComptuedStyle` reflects the used value based on the selected fallback.
Revision 1 by
on 
Breakdown, drawing a parallel with `@keyframe`:

* Save `@position-try` data in `CacadeData`: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#2910), [2](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#3681)
* Implement lookup for `@position-try` declarations by name in `Stylist`: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/components/style/stylist.rs#1507)
* Implement declaration -> computed value conversion [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/ports/geckolib/glue.rs#7052)
* Expose to layout: [1](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/servo/ports/geckolib/glue.rs#7187)
* Trigger reflow using overridden values (Something smiliar to [this](https://searchfox.org/firefox-main/rev/938e8f38c6765875e998d5c2965ad5864f5a5ee2/layout/base/LayoutStructs.h#25))
* Ensure that `getComptuedStyle` reflects the used value based on the selected fallback.

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