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

third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp

Index: third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
index 3bbcc2e917661d6565f3324356e66679f12d6269..e6917ed8630d4169b5e01f4b147438eda46061cf 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
@@ -1103,9 +1103,12 @@ PassRefPtr<SVGDashArray> StyleBuilderConverter::convertStrokeDasharray(
 StyleColor StyleBuilderConverter::convertStyleColor(StyleResolverState& state,
                                                     const CSSValue& value,
                                                     bool forVisitedLink) {
-  if (value.isIdentifierValue() &&
-      toCSSIdentifierValue(value).getValueID() == CSSValueCurrentcolor)
-    return StyleColor::currentColor();
+  if (value.isIdentifierValue()) {
+    if (toCSSIdentifierValue(value).getValueID() == CSSValueCurrentcolor)
+      return StyleColor::currentColor();
+    if (toCSSIdentifierValue(value).getValueID() == CSSValueAuto)
+      return StyleColor::autoColor();
+  }
   return state.document().textLinkColors().colorFromCSSValue(value, Color(),
                                                              forVisitedLink);
 }