CSS systemcolors should work in svg properties using <color>.

Source/core/css/SVGCSSParser.cpp

Index: Source/core/css/SVGCSSParser.cpp
diff --git a/Source/core/css/SVGCSSParser.cpp b/Source/core/css/SVGCSSParser.cpp
index e6e115e3424075e57f5b1aa0de91853cb5509bdb..5c2320372da75654d84fe085cd0b13ad63c78fc7 100644
--- a/Source/core/css/SVGCSSParser.cpp
+++ b/Source/core/css/SVGCSSParser.cpp
@@ -36,6 +36,11 @@ using namespace std;
 
 namespace WebCore {
 
+static bool isSystemColor(int id)
+{
+    return (id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu;
+}
+
 bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important)
 {
     CSSParserValue* value = m_valueList->current();
@@ -185,7 +190,7 @@ bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important)
                 parsedValue = SVGPaint::createNone();
             else if (id == CSSValueCurrentcolor)
                 parsedValue = SVGPaint::createCurrentColor();
-            else if ((id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu)
+            else if (isSystemColor(id))
                 parsedValue = SVGPaint::createColor(RenderTheme::defaultTheme()->systemColor(id));
             else if (value->unit == CSSPrimitiveValue::CSS_URI) {
                 RGBA32 c = Color::transparent;
@@ -208,8 +213,10 @@ bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important)
     case CSSPropertyStopColor: // TODO : icccolor
     case CSSPropertyFloodColor:
     case CSSPropertyLightingColor:
-        if ((id >= CSSValueAqua && id <= CSSValueWindowtext) ||
-           (id >= CSSValueAliceblue && id <= CSSValueYellowgreen))
+        if (isSystemColor(id))
+            parsedValue = SVGColor::createFromColor(RenderTheme::defaultTheme()->systemColor(id));
+        else if ((id >= CSSValueAqua && id <= CSSValueTransparent) ||
+                (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) || id == CSSValueGrey)
             parsedValue = SVGColor::createFromString(value->string);
         else if (id == CSSValueCurrentcolor)
             parsedValue = SVGColor::createCurrentColor();