Split has_custom_compare_and_copy in ComputedStyleExtraFields.json5.

third_party/WebKit/Source/build/scripts/templates/ComputedStyleBase.h.tmpl

 {% from 'macros.tmpl' import license, print_if %}
 {% from 'fields/field.tmpl' import encode, getter_expression, setter_expression, declare_storage, fieldwise_compare, fieldwise_copy, fieldwise_diff, fieldwise_pointer_compare_inherited %}
 {% from 'fields/group.tmpl' import define_field_group_class %}
 {{license()}}
 
 #ifndef ComputedStyleBase_h
 #define ComputedStyleBase_h
 
 #include "core/style/ComputedStyleConstants.h"
 #include "core/CoreExport.h"
@@ skipping 103 matching lines @@
   }
 
   inline bool InheritedEqual(const ComputedStyleBase& o) const {
     return IndependentInheritedEqual(o) && NonIndependentInheritedEqual(o);
   }
 
   inline bool NonInheritedEqual(const ComputedStyleBase& o) const {
     return (
         {{fieldwise_compare(computed_style, computed_style.all_fields
             |selectattr("is_property")
-            |rejectattr("has_custom_compare_and_copy")
             |rejectattr("is_inherited")
             |list
           )|indent(8)}}
         true
     );
   }
 
   inline bool InheritedDataShared(const ComputedStyleBase& o) const {
     return (
         {{fieldwise_pointer_compare_inherited(computed_style)|indent(8)}}
@@ skipping 94 matching lines @@
 
  private:
   {% for field in computed_style.fields %}
   {{declare_storage(field)}}
   {% endfor %}
 };
 
 } // namespace blink
 
 #endif // ComputedStyleBase_h