[CSS Typed OM] Specify and check separators for repeated 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 78 matching lines @@
 
     // - initial_keyword: "keyword-value"
     // This specifies the initial keyword value for the keyword fields.
     initial_keyword: {
     },
 
     // Flags which go into CSSOMTypes:
     // - typedom_types: ["Type", "OtherType"]
     // The property can take types specified in typedom_types for CSS Typed OM.
     // Keyword does not need to be specified as every property can take keywords.
-    // - repeated
-    // The property supports a list of values.
+    // - separator
+    // The property supports a list of values, and when there is more than one,
+    // it is separated with this character.
     // - supports_percentage
     // The property supports percentage types.
     typedom_types: {
       default: [],
     },
-    repeated: {
-      default: false,
-      valid_type: "bool",
+    separator: {
+      valid_values: [",", " ", "/"],
     },
     supports_percentage: {
       default: false,
       valid_type: "bool",
     },
 
     // Flags which go into CSSPropertyMetadata:
     // - interpolable
     // The interpolable flag indicates whether a property can be animated smoothly.
     // If this flag is set, the property should also be added to the switch
@@ skipping 134 matching lines @@
     {
       name: "animation-delay",
       custom_all: true,
       priority: "Animation",
     },
     {
       name: "animation-direction",
       custom_all: true,
       keywords: ["normal", "reverse", "alternate", "alternate-reverse"],
       priority: "Animation",
-      repeated: true,
+      separator: ",",
     },
     {
       name: "animation-duration",
       custom_all: true,
       priority: "Animation",
     },
     {
       name: "animation-fill-mode",
       custom_all: true,
       priority: "Animation",
     },
     {
       name: "animation-iteration-count",
       custom_all: true,
       keywords: ["infinite"],
       priority: "Animation",
-      repeated: true,
+      separator: ",",
     },
     {
       name: "animation-name",
       custom_all: true,
       priority: "Animation",
     },
     {
       name: "animation-play-state",
       custom_all: true,
       priority: "Animation",
@@ skipping 573 matching lines @@
       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,
+      separator: ",",
       typedom_types: ["Image"],
     },
     {
       name: "counter-increment",
       api_class: true,
       custom_all: true,
     },
     {
       name: "counter-reset",
       api_class: true,
@@ skipping 2188 matching lines @@
     {
       name: "-webkit-transition-timing-function",
       alias_for: "transition-timing-function",
     },
     {
       name: "-webkit-user-select",
       alias_for: "user-select",
     },
   ],
 }