Generate getters/setters for orphans and widows.

third_party/WebKit/Source/core/css/CSSProperties.json5

 {
 // This file specifies all the CSS properties we support and the necessary
 // information for our code generation. The various supported arguments
 // are described below with example usage
 
   parameters: {
     // - alias_for: "other-property"
     // Properties specifying alias_for should be virtually identical to the
     // properties they alias. Minor parsing differences are allowed as long as
     // the CSSValues created are of the same format of the aliased property.
@@ skipping 1572 matching lines @@
       interpolable: true,
       type_name: "int",
     },
     {
       name: "orphans",
       api_class: "CSSPropertyAPIFragmentation",
       api_methods: ["parseSingleValue"],
       inherited: true,
       interpolable: true,
       type_name: "short",
-      field_template: "storage_only",
+      field_template: "primitive",
       default_value: "2",
       field_group: "rare-inherited",
     },
     {
       name: "outline-color",
       api_class: true,
       api_methods: ["parseSingleValue"],
       custom_all: true,
       interpolable: true,
     },
@@ skipping 1067 matching lines @@
       default_value: "normal",
       field_template: "keyword",
       keywords: ["normal", "pre", "pre-wrap", "pre-line", "nowrap", "-webkit-nowrap"],
     },
     {
       name: "widows",
       api_class: "CSSPropertyAPIFragmentation",
       api_methods: ["parseSingleValue"],
       inherited: true,
       interpolable: true,
-      field_template: "storage_only",
+      field_template: "primitive",
       type_name: "short",
       default_value: "2",
       field_group: "rare-inherited",
     },
     {
       name: "width",
       api_class: "CSSPropertyAPIWidthOrHeight",
       converter: "ConvertLengthSizing",
       is_descriptor: true,
       interpolable: true,
@@ skipping 796 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }