Implements CSSPropertyAPI for the -webkit-border-[start|end|before|after]-width properties.

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 2506 matching lines @@
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-end-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-end-width",
       api_class: "CSSPropertyAPIWebkitBorderWidth",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-start-color",
       api_class: "CSSPropertyAPIColor",
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-start-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-start-width",
       api_class: "CSSPropertyAPIWebkitBorderWidth",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-before-color",
       api_class: "CSSPropertyAPIColor",
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-before-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-before-width",
       api_class: "CSSPropertyAPIWebkitBorderWidth",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-after-color",
       api_class: "CSSPropertyAPIColor",
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-after-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-after-width",
       api_class: "CSSPropertyAPIWebkitBorderWidth",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-margin-end",
       api_class: "CSSPropertyAPIWebkitMargin",
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-margin-start",
@@ skipping 643 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }