CSS: Use count position values with 3 parts

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp

Index: third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp
index 9be720bec71987ce1919d41a20ade40c1c721fce..f4e09ab69e84df35503883ee9884e8e2c733a951 100644
--- a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIScrollSnapCoordinate.cpp
@@ -12,12 +12,12 @@
 namespace blink {
 
 static CSSValueList* ConsumePositionList(CSSParserTokenRange& range,
-                                         CSSParserMode css_parser_mode) {
+                                         const CSSParserContext& context) {
   CSSValueList* positions = CSSValueList::CreateCommaSeparated();
   do {
-    CSSValue* position =
-        ConsumePosition(range, css_parser_mode,
-                        CSSPropertyParserHelpers::UnitlessQuirk::kForbid);
+    CSSValue* position = ConsumePosition(
+        range, context, CSSPropertyParserHelpers::UnitlessQuirk::kForbid,
+        CSSPropertyParserHelpers::PositionSyntax::kScrollSnapPoints);
     if (!position)
       return nullptr;
     positions->Append(*position);
@@ -31,7 +31,7 @@ const CSSValue* CSSPropertyAPIScrollSnapCoordinate::parseSingleValue(
     CSSPropertyID) {
   if (range.Peek().Id() == CSSValueNone)
     return CSSPropertyParserHelpers::ConsumeIdent(range);
-  return ConsumePositionList(range, context.Mode());
+  return ConsumePositionList(range, context);
 }
 
 }  // namespace blink