style: Move clear property out of gecko.mako.rs

Differential Revision: https://phabricator.services.mozilla.com/D158225

components/style/properties/gecko.mako.rs

@@ -1127,7 +1127,7 @@ fn static_assert() {
     ${impl_copy_animation_value(ident, gecko_ffi_name)}
 </%def>
 
-<% skip_box_longhands= """display clear""" %>
+<% skip_box_longhands= """display""" %>
 <%self:impl_trait style_struct_name="Box" skip_longhands="${skip_box_longhands}">
     #[inline]
     pub fn set_display(&mut self, v: longhands::display::computed_value::T) {
@@ -1159,13 +1159,6 @@ fn static_assert() {
     pub fn clone_display(&self) -> longhands::display::computed_value::T {
         self.gecko.mDisplay
     }
-
-    <% clear_keyword = Keyword(
-        "clear",
-        "Left Right None Both",
-        gecko_enum_prefix="StyleClear",
-    ) %>
-    ${impl_keyword('clear', 'mBreakType', clear_keyword)}
 </%self:impl_trait>
 
 <%def name="simple_image_array_property(name, shorthand, field_name)">

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

@@ -80,7 +80,7 @@ ${helpers.predefined_type(
     engines="gecko servo",
     animation_value_type="discrete",
     gecko_ffi_name="mBreakType",
-    spec="https://drafts.csswg.org/css-box/#propdef-clear",
+    spec="https://drafts.csswg.org/css2/#propdef-clear",
     servo_restyle_damage="rebuild_and_reflow",
 )}
 

components/style/values/computed/box.rs

@@ -152,6 +152,7 @@ impl ToComputedValue for SpecifiedFloat {
     ToResolvedValue,
 )]
 /// A computed value for the `clear` property.
+#[repr(u8)]
 pub enum Clear {
     None,
     Left,

components/style/values/specified/box.rs

@@ -1684,7 +1684,7 @@ pub enum Float {
 #[derive(
     Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
 )]
-/// https://drafts.csswg.org/css-box/#propdef-clear
+/// https://drafts.csswg.org/css2/#propdef-clear
 pub enum Clear {
     None,
     Left,