Fix missing canvas text on UWP
This addresses the missing fonts under UWP by updating font-kit and assorted dependencies that all depend on older incompatible versions of freetype. This also works around #27492 by using a fork of webrender that cherry-picks required dependency updates without bringing in the commit that exposes an ANGLE crash.
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#27515
- [x] These changes do not require tests because no UWP tests.
It's not possible anymore, in the presence of min() / max(), to split a
<length-percentage> value into a <length> and a <percentage> component.
Tweak word_spacing to do what Gecko does (resolving it in advance).
Update a bunch of stuff to syn 1
This updates a lot of our crates to syn 1. Not all of them, but syn 1 was already in tree so it doesn't matter much either way.
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This crate takes about 40 seconds to build of a fast desktop,
and was used in exactly one place. Additionally, that use was previously
accidentally disabled (a553964123)
and we only noticed more than a year later when the build broke
(d1efad6763).
There are a few canvas2d-related dependencies that haven't updated, but they
only use euclid internally so that's not blocking landing the rest of the
changes.
Given the size of this patch, I think it's useful to get this landed as-is.
Remove unused code (1/N)
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First PR in a series of PRs to remove unused/dead code from servo, powered by an (upcoming) tool of mine. Please take a look and tell me if you want to keep something.
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- [ ] These changes fix #___ (GitHub issue number if applicable)
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`hb_font_funcs_set_glyph_h_kerning_func` is gone but I couldn't find any
replacement. Kerning tests are passing and kerning seems fine on my
computer so I guess it's useless now ?
