Added CSSPropertyAPIMethods.json5 which defines all API methods.

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMethods.json5

Index: third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMethods.json5
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMethods.json5 b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMethods.json5
new file mode 100644
index 0000000000000000000000000000000000000000..13bcff0b86dbc04aa41ca9478986dc1f51c35594
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMethods.json5
@@ -0,0 +1,20 @@
+{
+	// This file specifies all the methods in CSSPropertyAPI.h and the necessary
+	// information for code generation of the API and it's related classes.
+	parameters: {
+		name: {
+			default: "",
+			valid_type: "str",
+		},
+		definition: {
+			default: "",
+			valid_type: "str",
+		},
+	},
+	data: [
+		{
+		name: "parseSingleValue",
+		definition: "static const CSSValue* parseSingleValue(CSSParserTokenRange&, const CSSParserContext*);",
+		},
+	]
+}