Auto merge of #19749 - gootorov:move_-moz-context-properties_from_mako, r=emilio

style: Move -moz-context-properties outside of mako.

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Sub-PR of #19015

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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 #19742  (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [x] These changes do not require tests

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components/style/values/computed/mod.rs

@@ -63,6 +63,7 @@ pub use self::percentage::Percentage;
 pub use self::position::{Position, GridAutoFlow, GridTemplateAreas};
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind};
 pub use self::svg::{SVGPaintOrder, SVGStrokeDashArray, SVGWidth};
+pub use self::svg::MozContextProperties;
 pub use self::table::XSpan;
 pub use self::text::{InitialLetter, LetterSpacing, LineHeight, TextAlign, TextOverflow, WordSpacing};
 pub use self::time::Time;

components/style/values/computed/svg.rs

@@ -13,6 +13,8 @@ use values::generics::svg as generic;
 
 pub use values::specified::SVGPaintOrder;
 
+pub use values::specified::MozContextProperties;
+
 /// Computed SVG Paint value
 pub type SVGPaint = generic::SVGPaint<RGBA, ComputedUrl>;
 /// Computed SVG Paint Kind value

components/style/values/specified/mod.rs

@@ -59,6 +59,7 @@ pub use self::percentage::Percentage;
 pub use self::position::{Position, PositionComponent, GridAutoFlow, GridTemplateAreas};
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind};
 pub use self::svg::{SVGPaintOrder, SVGStrokeDashArray, SVGWidth};
+pub use self::svg::MozContextProperties;
 pub use self::table::XSpan;
 pub use self::text::{InitialLetter, LetterSpacing, LineHeight, TextDecorationLine};
 pub use self::text::{TextAlign, TextAlignKeyword, TextOverflow, WordSpacing};

components/style/values/specified/svg.rs

@@ -8,6 +8,7 @@ use cssparser::Parser;
 use parser::{Parse, ParserContext};
 use std::fmt;
 use style_traits::{CommaWithSpace, ParseError, Separator, StyleParseErrorKind, ToCss};
+use values::CustomIdent;
 use values::generics::svg as generic;
 use values::specified::{LengthOrPercentage, NonNegativeLengthOrPercentage, NonNegativeNumber};
 use values::specified::{Number, Opacity, SpecifiedUrl};
@@ -260,3 +261,19 @@ impl ToCss for SVGPaintOrder {
         Ok(())
     }
 }
+
+/// Specified MozContextProperties value.
+/// Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-context-properties)
+#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss)]
+pub struct MozContextProperties(pub CustomIdent);
+
+impl Parse for MozContextProperties {
+    fn parse<'i, 't>(
+        _context: &ParserContext,
+        input: &mut Parser<'i, 't>
+    ) -> Result<MozContextProperties, ParseError<'i>> {
+        let location = input.current_source_location();
+        let i = input.expect_ident()?;
+        Ok(MozContextProperties(CustomIdent::from_ident(location, i, &["all", "none", "auto"])?))
+    }
+}