Shrink SVG paint-order to take less bits

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 696 matching lines @@
 
     return LengthPoint(
         convertOriginLength<CSSValueLeft, CSSValueRight>(state, primitiveValueX),
         convertOriginLength<CSSValueTop, CSSValueBottom>(state, primitiveValueY)
     );
 }
 
 EPaintOrder StyleBuilderConverter::convertPaintOrder(StyleResolverState&, CSSValue* cssPaintOrder)
 {
     if (cssPaintOrder->isValueList()) {
-        int paintOrder = 0;
-        const CSSValueList& list = *toCSSValueList(cssPaintOrder);
-        for (size_t i = 0; i < list.length(); ++i) {
-            EPaintOrderType paintOrderType = PT_NONE;
-            switch (toCSSPrimitiveValue(list.item(i))->getValueID()) {
-            case CSSValueFill:
-                paintOrderType = PT_FILL;
-                break;
-            case CSSValueStroke:
-                paintOrderType = PT_STROKE;
-                break;
-            case CSSValueMarkers:
-                paintOrderType = PT_MARKERS;
-                break;
-            default:
-                ASSERT_NOT_REACHED();
-                break;
-            }
-
-            paintOrder |= (paintOrderType << kPaintOrderBitwidth*i);
+        const CSSValueList& orderTypeList = *toCSSValueList(cssPaintOrder);
+        switch (toCSSPrimitiveValue(orderTypeList.item(0))->getValueID()) {
+        case CSSValueFill:
+            return orderTypeList.length() > 1 ? PaintOrderFillMarkersStroke : PaintOrderFillStrokeMarkers;
+        case CSSValueStroke:
+            return orderTypeList.length() > 1 ? PaintOrderStrokeMarkersFill : PaintOrderStrokeFillMarkers;
+        case CSSValueMarkers:
+            return orderTypeList.length() > 1 ? PaintOrderMarkersStrokeFill : PaintOrderMarkersFillStroke;
+        default:
+            ASSERT_NOT_REACHED();
+            return PaintOrderNormal;
         }
-        return (EPaintOrder)paintOrder;
     }
 
-    return PO_NORMAL;
+    return PaintOrderNormal;
 }
 
 Length StyleBuilderConverter::convertQuirkyLength(StyleResolverState& state, CSSValue* value)
 {
     Length length = convertLengthOrAuto(state, value);
     // This is only for margins which use __qem
     length.setQuirk(toCSSPrimitiveValue(value)->isQuirkValue());
     return length;
 }
 
@@ skipping 220 matching lines @@
     double sz = 1;
     if (list.length() >= 2)
         sy = toCSSPrimitiveValue(list.item(1))->getDoubleValue();
     if (list.length() == 3)
         sz = toCSSPrimitiveValue(list.item(2))->getDoubleValue();
 
     return ScaleTransformOperation::create(sx, sy, sz, TransformOperation::Scale3D);
 }
 
 } // namespace blink