Auto merge of #23892 - emilio:enginegeddon, r=SimonSapin

style: Sync changes from mozilla-central.

See individual commits for details.

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components/style/properties/gecko.mako.rs

@@ -1825,7 +1825,7 @@ fn static_assert() {
 
         for (gecko, servo) in self.gecko.mAnimations.iter_mut().take(input_len as usize).zip(v) {
             let result = match servo {
-                % for value in keyword.gecko_values():
+                % for value in keyword.values_for("gecko"):
                     Keyword::${to_camel_case(value)} =>
                         structs::${keyword.gecko_constant(value)} ${keyword.maybe_cast(cast_type)},
                 % endfor
@@ -1838,7 +1838,7 @@ fn static_assert() {
         -> longhands::animation_${ident}::computed_value::SingleComputedValue {
         use crate::properties::longhands::animation_${ident}::single_value::computed_value::T as Keyword;
         match self.gecko.mAnimations[index].m${gecko_ffi_name} ${keyword.maybe_cast("u32")} {
-            % for value in keyword.gecko_values():
+            % for value in keyword.values_for("gecko"):
                 structs::${keyword.gecko_constant(value)} => Keyword::${to_camel_case(value)},
             % endfor
             % if keyword.gecko_inexhaustive:

components/style/properties/longhands/box.mako.rs

@@ -649,9 +649,10 @@ ${helpers.predefined_type(
 
 // The spec issue for the parse_method: https://github.com/w3c/csswg-drafts/issues/4102.
 ${helpers.predefined_type(
-    "shape-image-threshold", "Opacity", "0.0",
+    "shape-image-threshold",
+    "Opacity",
+    "0.0",
     engines="gecko",
-    parse_method="parse_number",
     animation_value_type="ComputedValue",
     spec="https://drafts.csswg.org/css-shapes/#shape-image-threshold-property",
 )}

components/style/properties/longhands/inherited_text.mako.rs

@@ -80,7 +80,7 @@ ${helpers.predefined_type(
     "overflow-wrap",
     "OverflowWrap",
     "computed::OverflowWrap::Normal",
-    engines="servo-2013 servo-2020",
+    engines="gecko servo-2013 servo-2020",
     servo_2020_pref="layout.2020.unimplemented",
     animation_value_type="discrete",
     spec="https://drafts.csswg.org/css-text/#propdef-overflow-wrap",

components/style/values/specified/mod.rs

@@ -410,17 +410,6 @@ impl Parse for NonNegativeNumberOrPercentage {
 )]
 pub struct Opacity(Number);
 
-impl Opacity {
-    /// Parse number value only.
-    #[inline]
-    pub fn parse_number<'i, 't>(
-        context: &ParserContext,
-        input: &mut Parser<'i, 't>,
-    ) -> Result<Self, ParseError<'i>> {
-        Number::parse(context, input).map(Opacity)
-    }
-}
-
 impl Parse for Opacity {
     /// Opacity accepts <number> | <percentage>, so we parse it as NumberOrPercentage,
     /// and then convert into an Number if it's a Percentage.