Make stylo support mozmm unit
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This issue is reported at https://bugzilla.mozilla.org/show_bug.cgi?id=1356104. Mozmm is defined at https://developer.mozilla.org/zh-TW/docs/Web/CSS/length.
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Stop using unstable slice_patterns feature
cc #5286
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Replace intrinsics::abort with process::abort
This removes some unsafe/unstable code and replaces it with a new safe/stable alternative.
Note that `process::abort` is not identical to `intrinsics::abort`, since it runs global cleanups to do things like flush stderr (though neither function performs stack unwinding). I don't *think* the difference matters for our use cases.
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Update dependencies to latest compatible versions
Cargo.lock changes only, does not affect stylo. One new dependency because `brotli` split into two crates.
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Preserve units in computed Angle
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It was converting all angles to radians before. But other browsers preserves the angle units. Fixed that behavior.
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Servo changes for bug 1347409
bug 1347409 is introducing a fallback type for SVG paint servers so that we can distinguish between url(something) and url(something) none and serialise those cases correctly. When we get a url(something) color we need to set the mFallbackType to eStyleSVGFallbackType_Color.
This change has already been reviewed in https://bugzilla.mozilla.org/show_bug.cgi?id=1347409
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My measurements are inconclusive as to whether this really moves the
needle, but it seems like the right way to do it in any case.
MozReview-Commit-ID: 7OuCc2aQ7jH
Right now in the common case we're doing twice the work during stylist update,
and also checking is_html_element_in_html_document twice during lookup. This
patch aligns us with what Gecko does.
MozReview-Commit-ID: D4TyG30BP8C
This makes things more readable, and easier to profile (since the Gecko
profiler doesn't have any intra-function granularity, so I tend to make
helpers non-inline when drilling down into what's expensive).
It allows us to iterate the selector list once, which could help cache locality
for rules with many selectors.
MozReview-Commit-ID: GdFtgrbYCIu
