Implements CSSPropertyAPI for the margin 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 502 matching lines @@
       name: "align-content",
       converter: "convertContentAlignmentData",
       initial: "initialContentAlignment",
     },
     {
       name: "align-items",
       api_class: true,
       api_methods: ["parseSingleValue"],
       converter: "convertSelfOrDefaultAlignmentData",
       initial: "initialDefaultAlignment",
+      api_class: true,
     },
     {
       name: "alignment-baseline",
       svg: true,
     },
     {
       api_class: "CSSPropertyAPIAlignOrJustifySelf",
       api_methods: ["parseSingleValue"],
       name: "align-self",
       converter: "convertSelfOrDefaultAlignmentData",
@@ skipping 196 matching lines @@
       name: "border-top-width",
       converter: "convertLineWidth<unsigned>",
       initial: "initialBorderWidth",
       interpolable: true,
       keywords: ["thin", "medium", "thick"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "bottom",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "box-shadow",
       converter: "convertShadowList",
@@ skipping 312 matching lines @@
       converter: "convertContentAlignmentData",
       initial: "initialContentAlignment",
     },
     {
       name: "justify-items",
       api_class: true,
       api_methods: ["parseSingleValue"],
       converter: "convertSelfOrDefaultAlignmentData",
       initial: "initialSelfAlignment",
       runtime_flag: "CSSGridLayout",
+      api_class: true,
     },
     {
       name: "justify-self",
       api_class: "CSSPropertyAPIAlignOrJustifySelf",
       api_methods: ["parseSingleValue"],
       converter: "convertSelfOrDefaultAlignmentData",
       initial: "initialSelfAlignment",
       runtime_flag: "CSSGridLayout",
     },
     {
       name: "left",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "letter-spacing",
       api_class: "CSSPropertyAPILetterAndWordSpacing",
@@ skipping 39 matching lines @@
       name: "list-style-type",
       inherited: true,
       initial_keyword: "disc",
       keyword_only: true,
       keywords: [
         "disc", "circle", "square", "decimal", "decimal-leading-zero", "arabic-indic", "bengali", "cambodian", "khmer", "devanagari", "gujarati", "gurmukhi", "kannada", "lao", "malayalam", "mongolian", "myanmar", "oriya", "persian", "urdu", "telugu", "tibetan", "thai", "lower-roman", "upper-roman", "lower-greek", "lower-alpha", "lower-latin", "upper-alpha", "upper-latin", "cjk-earthly-branch", "cjk-heavenly-stem", "ethiopic-halehame", "ethiopic-halehame-am", "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "hangul", "hangul-consonant", "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal", "hebrew", "armenian", "lower-armenian", "upper-armenian", "georgian", "cjk-ideographic", "simp-chinese-formal", "simp-chinese-informal", "trad-chinese-formal", "trad-chinese-informal", "hiragana", "katakana", "hiragana-iroha", "katakana-iroha", "none",
       ],
     },
     {
       name: "margin-bottom",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertQuirkyLength",
       initial: "initialMargin",
       interpolable: true,
     },
     {
       name: "margin-left",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertQuirkyLength",
       initial: "initialMargin",
       interpolable: true,
     },
     {
       name: "margin-right",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertQuirkyLength",
       initial: "initialMargin",
       interpolable: true,
     },
     {
       name: "margin-top",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertQuirkyLength",
       initial: "initialMargin",
       interpolable: true,
     },
     {
       name: "marker-end",
       converter: "convertFragmentIdentifier",
       inherited: true,
       name_for_methods: "MarkerEndResource",
       svg: true,
@@ skipping 248 matching lines @@
       api_methods: ["parseSingleValue"],
       converter: "convertQuotes",
       inherited: true,
     },
     {
       name: "resize",
       custom_value: true,
     },
     {
       name: "right",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "r",
       converter: "convertLength",
@@ skipping 290 matching lines @@
     {
       name: "text-underline-position",
       api_class: true,
       api_methods: ["parseSingleValue"],
       inherited: true,
       runtime_flag: "CSS3TextDecorations",
       type_name: "TextUnderlinePosition",
     },
     {
       name: "top",
+      api_class: "CSSPropertyAPIMargin",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "touch-action",
       api_class: true,
@@ skipping 566 matching lines @@
     {
       name: "-webkit-border-after-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-after-width",
       direction_aware: true,
     },
     {
       name: "-webkit-margin-end",
+      api_class: "CSSPropertyAPIWebkitMargin",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-margin-start",
+      api_class: "CSSPropertyAPIWebkitMargin",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-margin-before",
+      api_class: "CSSPropertyAPIWebkitMargin",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-margin-after",
+      api_class: "CSSPropertyAPIWebkitMargin",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-padding-end",
       api_class: "CSSPropertyAPIWebkitPadding",
       api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-padding-start",
@@ skipping 587 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }