Generate enum/getters/setters/mappings for overflow-wrap.

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 1618 matching lines @@
       inherited: false,
       default_value: "auto",
       field_template: "keyword",
       keywords: [
         "visible", "none", "auto",
       ],
     },
     {
       name: "overflow-wrap",
       inherited: true,
-      field_template: "storage_only",
-      type_name: "EOverflowWrap",
-      default_value: "EOverflowWrap::kNormal",
+      field_template: "keyword",
+      keywords: ["normal", "break-word"],
+      default_value: "normal",
       field_size: 1,
       field_group: "rare-inherited",
     },
     {
       name: "overflow-x",
       default_value: "visible",
       field_template: "keyword",
       keywords: [
         "visible", "hidden", "scroll", "auto", "overlay", "-webkit-paged-x", "-webkit-paged-y",
       ],
@@ skipping 1840 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }