Added api_methods flag to CSSProperties.json5.

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 24 matching lines @@
     // See core/css/properties/CSSPropertyAPI.h for API details.
     // * Add this flag if the API has been implemented for this property.
     // * If the classname for this is different to the name of the property, specify a
     //   value for this flag. e.g. api_class=CSSPropertyAPIWebkitPadding
     // TODO(aazzam): When most properties have been implemented, modify this so that
     // properties with default classnames do not get this flag, and introduce a
     // 'not_implemented' flag instead.
     api_class: {
     },
 
+    // - api_methods: ["method1", "method2"]
+    api_methods: {
+      default: [],
+    },
+
     // - keyword_only
     // These properties only store keyword values. This is used when
     // generating the ComputedStyle storage for the property. The initial
     // value for this property on a ComputedStyle is specified with the
     // initial_keyword flag below.
     // TODO(sashab): Rename this to field_type=keyword once we support
     // multiple types of generatable fields in ComputedStyle
     // TODO(sashab, meade): Remove this once TypedOM types are specified for
     // every property, since this value can be inferred from that.
     keyword_only: {
@@ skipping 290 matching lines @@
       font: true,
       getter: "getSize",
       inherited: true,
       interpolable: true,
       name_for_methods: "Size",
       priority: "High",
     },
     {
       name: "font-size-adjust",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFontSizeAdjust",
       font: true,
       inherited: true,
       interpolable: true,
       name_for_methods: "SizeAdjust",
       priority: "High",
       runtime_flag: "CSSFontSizeAdjust",
     },
     {
       name: "font-stretch",
       font: true,
       inherited: true,
       name_for_methods: "Stretch",
       priority: "High",
       type_name: "FontStretch",
     },
     {
       name: "font-style",
       font: true,
       inherited: true,
       name_for_methods: "Style",
       priority: "High",
       type_name: "FontStyle",
     },
     {
       name: "font-variant-ligatures",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFontVariantLigatures",
       font: true,
       inherited: true,
       name_for_methods: "VariantLigatures",
       priority: "High",
       type_name: "VariantLigatures",
     },
     {
       name: "font-variant-caps",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFontVariantCaps",
       font: true,
       inherited: true,
       name_for_methods: "VariantCaps",
       priority: "High",
     },
     {
       name: "font-variant-numeric",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFontVariantNumeric",
       font: true,
       inherited: true,
       name_for_methods: "VariantNumeric",
       priority: "High",
     },
     {
       name: "font-weight",
       converter: "convertFontWeight",
       font: true,
       inherited: true,
       interpolable: true,
       name_for_methods: "Weight",
       priority: "High",
       type_name: "FontWeight",
     },
     {
       name: "font-feature-settings",
       converter: "convertFontFeatureSettings",
       font: true,
       inherited: true,
       name_for_methods: "FeatureSettings",
       priority: "High",
     },
     {
       name: "font-variation-settings",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFontVariationSettings",
       font: true,
       inherited: true,
       name_for_methods: "VariationSettings",
       priority: "High",
       runtime_flag: "CSSVariableFonts",
     },
     {
       name: "-webkit-font-smoothing",
       font: true,
@@ skipping 43 matching lines @@
     {
       name: "text-rendering",
       font: true,
       inherited: true,
       priority: "High",
       type_name: "TextRenderingMode",
     },
     {
       name: "zoom",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       priority: "High",
     },
 
     {
       name: "align-content",
       converter: "convertContentAlignmentData",
       initial: "initialContentAlignment",
     },
     {
@@ skipping 76 matching lines @@
       svg: true,
     },
     {
       name: "border-bottom-color",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "border-bottom-left-radius",
       api_class: "CSSPropertyAPIBorderRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertRadius",
       initial: "initialBorderRadius",
       interpolable: true,
     },
     {
       name: "border-bottom-right-radius",
       api_class: "CSSPropertyAPIBorderRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertRadius",
       initial: "initialBorderRadius",
       interpolable: true,
     },
     {
       name: "border-bottom-style",
       initial: "initialBorderStyle",
       type_name: "EBorderStyle",
     },
     {
@@ skipping 20 matching lines @@
       custom_all: true,
     },
     {
       name: "border-image-slice",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "border-image-source",
       api_class: "CSSPropertyAPIImage",
+      api_methods: ["parseSingleValue"],
       custom_value: true,
       interpolable: true,
       keywords: ["none"],
       typedom_types: ["Image"],
     },
     {
       name: "border-image-width",
       custom_all: true,
       interpolable: true,
     },
@@ skipping 30 matching lines @@
       interpolable: true,
     },
     {
       name: "border-top-color",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "border-top-left-radius",
       api_class: "CSSPropertyAPIBorderRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertRadius",
       initial: "initialBorderRadius",
       interpolable: true,
     },
     {
       name: "border-top-right-radius",
       api_class: "CSSPropertyAPIBorderRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertRadius",
       initial: "initialBorderRadius",
       interpolable: true,
     },
     {
       name: "border-top-style",
       initial: "initialBorderStyle",
       type_name: "EBorderStyle",
     },
     {
@@ skipping 40 matching lines @@
       name: "caption-side",
       independent: true,
       inherited: true,
       initial_keyword: "top",
       keyword_only: true,
       keywords: ["top", "bottom", "left", "right"],
     },
     {
       name: "caret-color",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       interpolable: true,
     },
     "clear",
     {
       name: "clip",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertClip",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "clip-path",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertClipPath",
       interpolable: true,
     },
     {
       name: "clip-rule",
       inherited: true,
       svg: true,
       type_name: "WindRule",
     },
     {
@@ skipping 12 matching lines @@
       inherited: true,
       svg: true,
     },
     {
       name: "column-fill",
       type_name: "ColumnFill",
     },
     {
       name: "contain",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFlags<Containment>",
       runtime_flag: "CSSContainment",
     },
     {
       name: "content",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       repeated: true,
       typedom_types: ["Image"],
     },
     {
       name: "counter-increment",
       custom_all: true,
     },
     {
       name: "counter-reset",
       custom_all: true,
     },
     {
       name: "cursor",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
     },
     {
       name: "cx",
       converter: "convertLength",
       interpolable: true,
       svg: true,
     },
     {
@@ skipping 19 matching lines @@
       independent: true,
       inherited: true,
       initial_keyword: "show",
       keyword_only: true,
       keywords: ["show", "hide"],
       type_name: "EEmptyCells",
     },
     {
       name: "fill",
       api_class: "CSSPropertyAPIPaintStroke",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       interpolable: true,
       setter: "setFillPaint",
       svg: true,
     },
     {
       name: "fill-opacity",
       api_class: "CSSPropertyAPIOpacity",
+      api_methods: ["parseSingleValue"],
       converter: "convertNumberOrPercentage",
       inherited: true,
       interpolable: true,
       svg: true,
     },
     {
       name: "fill-rule",
       inherited: true,
       svg: true,
       type_name: "WindRule",
     },
     {
       name: "filter",
       converter: "convertFilterOperations",
       interpolable: true,
     },
     {
       name: "flex-basis",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       interpolable: true,
     },
     "flex-direction",
     {
       name: "flex-grow",
       interpolable: true,
       type_name: "float",
     },
     {
       name: "flex-shrink",
       interpolable: true,
       type_name: "float",
     },
     "flex-wrap",
     {
       name: "float",
       initial_keyword: "none",
       keyword_only: true,
       keywords: ["none", "left", "right"],
       name_for_methods: "Floating",
       type_name: "EFloat",
     },
     {
       name: "flood-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       converter: "convertColor",
       interpolable: true,
       svg: true,
     },
     {
       name: "flood-opacity",
       api_class: "CSSPropertyAPIOpacity",
+      api_methods: ["parseSingleValue"],
       converter: "convertNumberOrPercentage",
       interpolable: true,
       svg: true,
     },
     {
       name: "grid-auto-columns",
       converter: "convertGridTrackSizeList",
       runtime_flag: "CSSGridLayout",
     },
     {
       name: "grid-auto-flow",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertGridAutoFlow",
       runtime_flag: "CSSGridLayout",
       type_name: "GridAutoFlow",
     },
     {
       name: "grid-auto-rows",
       converter: "convertGridTrackSizeList",
       runtime_flag: "CSSGridLayout",
     },
     {
@@ skipping 56 matching lines @@
       runtime_flag: "CSSHyphens",
       type_name: "Hyphens",
     },
     {
       name: "image-rendering",
       inherited: true,
     },
     {
       name: "image-orientation",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertImageOrientation",
       inherited: true,
       name_for_methods: "RespectImageOrientation",
       runtime_flag: "ImageOrientation",
     },
     "isolation",
     {
       name: "justify-content",
       converter: "convertContentAlignmentData",
       initial: "initialContentAlignment",
@@ skipping 15 matching lines @@
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "letter-spacing",
       api_class: "CSSPropertyAPILetterAndWordSpacing",
+      api_methods: ["parseSingleValue"],
       converter: "convertSpacing",
       inherited: true,
       initial: "initialLetterWordSpacing",
       interpolable: true,
     },
     {
       name: "lighting-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       converter: "convertColor",
       interpolable: true,
       svg: true,
     },
     {
       name: "line-height",
       converter: "convertLineHeight",
       getter: "specifiedLineHeight",
       inherited: true,
       interpolable: true,
     },
     {
       name: "list-style-image",
       api_class: "CSSPropertyAPIImage",
+      api_methods: ["parseSingleValue"],
       custom_value: true,
       inherited: true,
       interpolable: true,
       typedom_types: ["Image"],
     },
     {
       name: "list-style-position",
       independent: true,
       inherited: true,
       initial_keyword: "outside",
@@ skipping 130 matching lines @@
       converter: "convertLength",
       interpolable: true,
     },
     {
       name: "offset-path",
       converter: "convertPathOrNone",
     },
     {
       name: "offset-position",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertPositionOrAuto",
       interpolable: true,
       runtime_flag: "CSSOffsetPositionAnchor",
     },
     {
       name: "offset-rotate",
       converter: "convertOffsetRotate",
       interpolable: true,
       runtime_flag: "CSSOffsetRotate",
     },
     {
       name: "offset-rotation",
       converter: "convertOffsetRotate",
       interpolable: true,
       runtime_flag: "CSSOffsetRotation",
     },
     {
       name: "opacity",
       api_class: "CSSPropertyAPIOpacity",
+      api_methods: ["parseSingleValue"],
       interpolable: true,
       type_name: "float",
     },
     {
       name: "order",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       type_name: "int",
     },
     {
       name: "orphans",
       inherited: true,
       interpolable: true,
       type_name: "short",
     },
     {
       name: "outline-color",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       interpolable: true,
     },
     {
       name: "outline-offset",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertComputedLength<int>",
       interpolable: true,
     },
     {
       name: "outline-style",
       custom_all: true,
     },
     {
       name: "outline-width",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertLineWidth<unsigned short>",
       interpolable: true,
     },
     {
       name: "overflow-anchor",
       runtime_flag: "ScrollAnchoring",
       type_name: "EOverflowAnchor",
     },
     {
       name: "overflow-wrap",
       inherited: true,
     },
     {
       name: "overflow-x",
       type_name: "EOverflow",
     },
     {
       name: "overflow-y",
       type_name: "EOverflow",
     },
     {
       name: "padding-bottom",
       api_class: "CSSPropertyAPIPadding",
+      api_methods: ["parseSingleValue"],
       converter: "convertLength",
       initial: "initialPadding",
       interpolable: true,
     },
     {
       name: "padding-left",
       api_class: "CSSPropertyAPIPadding",
+      api_methods: ["parseSingleValue"],
       converter: "convertLength",
       initial: "initialPadding",
       interpolable: true,
     },
     {
       name: "padding-right",
       api_class: "CSSPropertyAPIPadding",
+      api_methods: ["parseSingleValue"],
       converter: "convertLength",
       initial: "initialPadding",
       interpolable: true,
     },
     {
       name: "padding-top",
       api_class: "CSSPropertyAPIPadding",
+      api_methods: ["parseSingleValue"],
       converter: "convertLength",
       initial: "initialPadding",
       interpolable: true,
     },
     {
       name: "paint-order",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertPaintOrder",
       inherited: true,
       svg: true,
     },
     {
       name: "perspective",
       converter: "convertPerspective",
       interpolable: true,
     },
     {
@@ skipping 11 matching lines @@
         "none", "auto", "stroke", "fill", "painted", "visible", "visibleStroke", "visibleFill", "visiblePainted", "bounding-box", "all",
       ],
     },
     {
       name: "position",
       custom_inherit: true,
     },
     {
       name: "quotes",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertQuotes",
       inherited: true,
     },
     {
       name: "resize",
       custom_value: true,
     },
     {
       name: "right",
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "r",
       converter: "convertLength",
       interpolable: true,
       svg: true,
     },
     {
       name: "rx",
       api_class: "CSSPropertyAPIRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       interpolable: true,
       svg: true,
     },
     {
       name: "ry",
       api_class: "CSSPropertyAPIRadius",
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrAuto",
       interpolable: true,
       svg: true,
     },
     {
       name: "scroll-behavior",
       runtime_flag: "CSSOMSmoothScroll",
       type_name: "ScrollBehavior",
     },
     {
@@ skipping 12 matching lines @@
       runtime_flag: "CSSScrollSnapPoints",
     },
     {
       name: "scroll-snap-destination",
       converter: "convertPosition",
       runtime_flag: "CSSScrollSnapPoints",
     },
     {
       name: "scroll-snap-coordinate",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertSnapCoordinates",
       runtime_flag: "CSSScrollSnapPoints",
     },
     {
       name: "shape-image-threshold",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       interpolable: true,
       type_name: "float",
     },
     {
       name: "shape-margin",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertLength",
       interpolable: true,
     },
     {
       name: "shape-outside",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertShapeValue",
       interpolable: true,
       typedom_types: ["Image"],
     },
     {
       name: "shape-rendering",
       inherited: true,
       svg: true,
     },
     {
       name: "size",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
     },
     {
       name: "snap-height",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       runtime_flag: "CSSSnapSize",
     },
     {
       name: "speak",
       inherited: true,
     },
     {
       name: "stop-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       converter: "convertColor",
       interpolable: true,
       svg: true,
     },
     {
       name: "stop-opacity",
       api_class: "CSSPropertyAPIOpacity",
+      api_methods: ["parseSingleValue"],
       converter: "convertNumberOrPercentage",
       interpolable: true,
       svg: true,
     },
     {
       name: "stroke",
       api_class: "CSSPropertyAPIPaintStroke",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       interpolable: true,
       setter: "setStrokePaint",
       svg: true,
     },
     {
       name: "stroke-dasharray",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertStrokeDasharray",
       inherited: true,
       interpolable: true,
       name_for_methods: "StrokeDashArray",
       svg: true,
     },
     {
       name: "stroke-dashoffset",
       converter: "convertLength",
       inherited: true,
@@ skipping 11 matching lines @@
     {
       name: "stroke-linejoin",
       inherited: true,
       name_for_methods: "JoinStyle",
       svg: true,
       type_name: "LineJoin",
     },
     {
       name: "stroke-miterlimit",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       inherited: true,
       interpolable: true,
       name_for_methods: "StrokeMiterLimit",
       svg: true,
       type_name: "float",
     },
     {
       name: "stroke-opacity",
       api_class: "CSSPropertyAPIOpacity",
+      api_methods: ["parseSingleValue"],
       converter: "convertNumberOrPercentage",
       inherited: true,
       interpolable: true,
       svg: true,
     },
     {
       name: "stroke-width",
       converter: "convertUnzoomedLength",
       inherited: true,
       interpolable: true,
       svg: true,
     },
     "table-layout",
     {
       name: "tab-size",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertLengthOrTabSpaces",
       inherited: true,
       type_name: "TabSize",
     },
     {
       name: "text-align",
       custom_value: true,
       inherited: true,
       initial_keyword: "start",
       keyword_only: true,
@@ skipping 19 matching lines @@
     },
     // FIXME: We shouldn't switch between shorthand/not shorthand based on a runtime flag
     {
       name: "text-decoration",
       longhands: "text-decoration-line;text-decoration-style;text-decoration-color",
       use_handlers_for: "CSSPropertyTextDecorationLine",
     },
     {
       name: "text-decoration-color",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       interpolable: true,
       runtime_flag: "CSS3TextDecorations",
     },
     {
       name: "text-decoration-line",
       converter: "convertFlags<TextDecoration>",
       name_for_methods: "TextDecoration",
       runtime_flag: "CSS3TextDecorations",
       type_name: "TextDecoration",
     },
     {
       name: "text-decoration-skip",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFlags<TextDecorationSkip>",
       inherited: true,
       runtime_flag: "CSS3TextDecorations",
       type_name: "TextDecorationSkip",
     },
     {
       name: "text-decoration-style",
       runtime_flag: "CSS3TextDecorations",
       type_name: "TextDecorationStyle",
     },
     {
       name: "text-indent",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       interpolable: true,
     },
     {
       name: "text-justify",
       inherited: true,
       runtime_flag: "CSS3Text",
       type_name: "TextJustify",
     },
     {
       name: "text-overflow",
       type_name: "TextOverflow",
     },
     {
       name: "text-shadow",
       converter: "convertShadowList",
       inherited: true,
       interpolable: true,
     },
     {
       name: "text-size-adjust",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertTextSizeAdjust",
       inherited: true,
       type_name: "TextSizeAdjust",
     },
     {
       name: "text-transform",
       independent: true,
       inherited: true,
       initial_keyword: "none",
       keyword_only: true,
       keywords: ["capitalize", "uppercase", "lowercase", "none"],
     },
     {
       name: "text-underline-position",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       inherited: true,
       runtime_flag: "CSS3TextDecorations",
       type_name: "TextUnderlinePosition",
     },
     {
       name: "top",
       converter: "convertLengthOrAuto",
       initial: "initialOffset",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "touch-action",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertFlags<TouchAction>",
       type_name: "TouchAction",
     },
     {
       name: "transform",
       converter: "convertTransformOperations",
       interpolable: true,
       keywords: ["none"],
       typedom_types: ["Transform"],
     },
     {
       name: "transform-origin",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertTransformOrigin",
       interpolable: true,
     },
     {
       name: "transform-style",
       name_for_methods: "TransformStyle3D",
     },
     {
       name: "translate",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertTranslate",
       interpolable: true,
       runtime_flag: "CSSIndependentTransformProperties",
     },
     {
       name: "rotate",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertRotate",
       interpolable: true,
       runtime_flag: "CSSIndependentTransformProperties",
     },
     {
       name: "scale",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertScale",
       interpolable: true,
       runtime_flag: "CSSIndependentTransformProperties",
     },
     {
       name: "unicode-bidi",
       field_storage_type: "platform/text/UnicodeBidi",
       initial_keyword: "normal",
       keyword_only: true,
       keywords: [
         "normal", "embed", "bidi-override", "isolate", "plaintext", "isolate-override",
       ],
       type_name: "UnicodeBidi",
     },
     {
       name: "vector-effect",
       svg: true,
     },
     {
       name: "vertical-align",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_inherit: true,
       custom_value: true,
       interpolable: true,
     },
     {
       name: "visibility",
       independent: true,
       inherited: true,
       initial_keyword: "visible",
       interpolable: true,
@@ skipping 60 matching lines @@
       keyword_only: true,
       keywords: ["normal", "reverse"],
     },
     {
       name: "-webkit-box-flex",
       type_name: "float",
     },
     {
       name: "-webkit-box-flex-group",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       type_name: "unsigned int",
     },
     "-webkit-box-lines",
     {
       name: "-webkit-box-ordinal-group",
       type_name: "unsigned int",
     },
     "-webkit-box-orient",
     "-webkit-box-pack",
     {
       name: "-webkit-box-reflect",
       converter: "convertBoxReflect",
     },
     {
       name: "column-count",
       custom_all: true,
       interpolable: true,
       type_name: "unsigned short",
     },
     {
       name: "column-gap",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertComputedLength<float>",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "column-rule-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       interpolable: true,
     },
     {
       name: "column-rule-style",
       initial: "initialBorderStyle",
       type_name: "EBorderStyle",
     },
     {
       name: "column-rule-width",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertLineWidth<unsigned short>",
       interpolable: true,
     },
     {
       name: "column-span",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       type_name: "ColumnSpan",
     },
     {
       name: "column-width",
       converter: "convertComputedLength<float>",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "-webkit-highlight",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertString<CSSValueNone>",
       inherited: true,
     },
     {
       name: "-webkit-hyphenate-character",
       converter: "convertString<CSSValueAuto>",
       inherited: true,
       name_for_methods: "HyphenationString",
     },
     {
       name: "-webkit-line-break",
       inherited: true,
       type_name: "LineBreak",
     },
     {
       name: "-webkit-line-clamp",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       type_name: "LineClampValue",
     },
     {
       name: "-webkit-margin-after-collapse",
       type_name: "EMarginCollapse",
     },
     {
       name: "-webkit-margin-before-collapse",
       type_name: "EMarginCollapse",
     },
@@ skipping 17 matching lines @@
       custom_all: true,
     },
     {
       name: "-webkit-mask-box-image-slice",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "-webkit-mask-box-image-source",
       api_class: "CSSPropertyAPIImage",
+      api_methods: ["parseSingleValue"],
       custom_value: true,
       interpolable: true,
     },
     {
       name: "-webkit-mask-box-image-width",
       custom_all: true,
       interpolable: true,
     },
     {
       name: "-webkit-mask-clip",
@@ skipping 65 matching lines @@
       type_name: "EOrder",
     },
     {
       name: "-webkit-ruby-position",
       inherited: true,
       type_name: "RubyPosition",
     },
     {
       name: "-webkit-tap-highlight-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       converter: "convertColor",
       inherited: true,
     },
     {
       name: "-webkit-text-combine",
       inherited: true,
       name_for_methods: "TextCombine",
       type_name: "TextCombine",
     },
     {
       name: "-webkit-text-emphasis-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
     },
     {
       name: "-webkit-text-emphasis-position",
       inherited: true,
       type_name: "TextEmphasisPosition",
     },
     {
       name: "-webkit-text-emphasis-style",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
     },
     {
       name: "-webkit-text-fill-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
     },
     {
       name: "-webkit-text-security",
       inherited: true,
     },
     {
       name: "-webkit-text-stroke-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       inherited: true,
       interpolable: true,
     },
     {
       name: "-webkit-text-stroke-width",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertTextStrokeWidth",
       inherited: true,
     },
     {
       name: "-webkit-transform-origin-x",
       converter: "convertLength",
       interpolable: true,
     },
     {
       name: "-webkit-transform-origin-y",
       converter: "convertLength",
       interpolable: true,
     },
     {
       name: "-webkit-transform-origin-z",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       converter: "convertComputedLength<float>",
       interpolable: true,
     },
     "-webkit-user-drag",
     {
       name: "-webkit-user-modify",
       inherited: true,
     },
     {
       name: "user-select",
@@ skipping 18 matching lines @@
       converter: "convertLengthSizing",
       initial: "initialSize",
       interpolable: true,
       keywords: ["auto"],
       supports_percentage: true,
       typedom_types: ["Length"],
     },
     {
       name: "will-change",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
     },
     {
       name: "word-break",
       inherited: true,
     },
     {
       name: "word-spacing",
       api_class: "CSSPropertyAPILetterAndWordSpacing",
+      api_methods: ["parseSingleValue"],
       converter: "convertSpacing",
       inherited: true,
       initial: "initialLetterWordSpacing",
       interpolable: true,
     },
     // UAs must treat 'word-wrap' as an alternate name for the 'overflow-wrap' property. So using the same handlers.
     {
       name: "word-wrap",
       inherited: true,
       name_for_methods: "OverflowWrap",
     },
     {
       name: "z-index",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       custom_all: true,
       interpolable: true,
       type_name: "int",
     },
 
     // CSS logical props
     {
       name: "inline-size",
       direction_aware: true,
     },
     {
       name: "block-size",
       direction_aware: true,
     },
     {
       name: "min-inline-size",
       direction_aware: true,
     },
     {
       name: "min-block-size",
       direction_aware: true,
     },
     {
       name: "max-inline-size",
       api_class: "CSSPropertyAPIWebkitMaxLogicalWidthOrHeight",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "max-block-size",
       api_class: "CSSPropertyAPIWebkitMaxLogicalWidthOrHeight",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
 
     // Non-standard direction aware properties
 
     {
       name: "-webkit-border-end-color",
       api_class: "CSSPropertyAPIColor",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-border-end-style",
       direction_aware: true,
     },
     {
       name: "-webkit-border-end-width",
       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",
       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",
       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",
       direction_aware: true,
     },
     {
       name: "-webkit-margin-end",
       direction_aware: true,
     },
     {
       name: "-webkit-margin-start",
       direction_aware: true,
     },
     {
       name: "-webkit-margin-before",
       direction_aware: true,
     },
     {
       name: "-webkit-margin-after",
       direction_aware: true,
     },
     {
       name: "-webkit-padding-end",
       api_class: "CSSPropertyAPIWebkitPadding",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-padding-start",
       api_class: "CSSPropertyAPIWebkitPadding",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-padding-before",
       api_class: "CSSPropertyAPIWebkitPadding",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-padding-after",
       api_class: "CSSPropertyAPIWebkitPadding",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-logical-width",
       direction_aware: true,
     },
     {
       name: "-webkit-logical-height",
       direction_aware: true,
     },
     {
       name: "-webkit-min-logical-width",
       direction_aware: true,
     },
     {
       name: "-webkit-min-logical-height",
       direction_aware: true,
     },
     {
       name: "-webkit-max-logical-width",
       api_class: "CSSPropertyAPIWebkitMaxLogicalWidthOrHeight",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
     {
       name: "-webkit-max-logical-height",
       api_class: "CSSPropertyAPIWebkitMaxLogicalWidthOrHeight",
+      api_methods: ["parseSingleValue"],
       direction_aware: true,
     },
 
     // Properties that we ignore in the StyleBuilder.
     // TODO(timloh): This seems wrong, most of these shouldn't reach the StyleBuilder
 
     {
       name: "all",
       builder_skip: true,
     },
     {
       name: "page",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       builder_skip: true,
     },
     {
       name: "-webkit-font-size-delta",
       api_class: true,
+      api_methods: ["parseSingleValue"],
       builder_skip: true,
     },
     {
       name: "-webkit-text-decorations-in-effect",
       builder_skip: true,
       inherited: true,
     },
 
     // Descriptors
 
@@ skipping 515 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }