Make currentColor behave the same internally as initial

Source/core/css/resolver/StyleBuilderConverter.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 500 matching lines @@
         if (!currValue->isPrimitiveValue())
             continue;
 
         CSSPrimitiveValue* dash = toCSSPrimitiveValue(dashes->item(i));
         array->append(SVGLength::fromCSSPrimitiveValue(dash));
     }
 
     return array.release();
 }
 
+StyleColor StyleBuilderConverter::convertStyleColor(StyleResolverState& state, CSSValue* value, bool forVisitedLink)
+{
+    CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
+    if (primitiveValue->getValueID() == CSSValueCurrentcolor)
+        return StyleColor::currentColor();
+    return state.document().textLinkColors().colorFromPrimitiveValue(primitiveValue, Color(), forVisitedLink);
+}
+
 Color StyleBuilderConverter::convertSVGColor(StyleResolverState& state, CSSValue* value)
 {
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
     if (primitiveValue->isRGBColor())
         return primitiveValue->getRGBA32Value();
     ASSERT(primitiveValue->getValueID() == CSSValueCurrentcolor);
     return state.style()->color();
 }
 
 PassRefPtr<SVGLength> StyleBuilderConverter::convertSVGLength(StyleResolverState&, CSSValue* value)
 {
     return SVGLength::fromCSSPrimitiveValue(toCSSPrimitiveValue(value));
 }
 
 float StyleBuilderConverter::convertTextStrokeWidth(StyleResolverState& state, CSSValue* value)
 {
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
     if (primitiveValue->getValueID()) {
         float multiplier = convertLineWidth<float>(state, value);
         return CSSPrimitiveValue::create(multiplier / 48, CSSPrimitiveValue::CSS_EMS)->computeLength<float>(state.cssToLengthConversionData());
     }
     return primitiveValue->computeLength<float>(state.cssToLengthConversionData());
 }
 
 } // namespace blink