[css-ui] Add support for caret-color property

third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp b/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
index bc5add7bbd2976607aff81c7cadeb0fe2056f918..c2ddc19075b7acab16b1863f5a665722a334d80c 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
@@ -516,6 +516,13 @@ CSSValue* consumeColor(CSSParserTokenRange& range,
   return CSSColorValue::create(color);
 }
 
+CSSValue* consumeAutoOrColor(CSSParserTokenRange& range,
+                             CSSParserMode cssParserMode) {
+  if (range.peek().id() == CSSValueAuto)
+    return consumeIdent(range);
+  return consumeColor(range, cssParserMode);
+}
+
 static CSSValue* consumePositionComponent(CSSParserTokenRange& range,
                                           CSSParserMode cssParserMode,
                                           UnitlessQuirk unitless,