Shrink SVG paint-order to take less bits

Source/core/css/ComputedStyleCSSValueMapping.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ skipping 1167 matching lines @@
     if (dashes.isEmpty())
         return CSSPrimitiveValue::createIdentifier(CSSValueNone);
 
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
     for (const Length& dashLength : dashes.vector())
         list->append(zoomAdjustedPixelValueForLength(dashLength, style));
 
     return list.release();
 }
 
-static PassRefPtrWillBeRawPtr<CSSValue> paintOrderToCSSValueList(EPaintOrder paintorder)
+static PassRefPtrWillBeRawPtr<CSSValue> paintOrderToCSSValueList(const SVGComputedStyle& svgStyle)
 {
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
-    do {
-        EPaintOrderType paintOrderType = (EPaintOrderType)(paintorder & ((1 << kPaintOrderBitwidth) - 1));
+    for (int i = 0; i < 3; i++) {
+        EPaintOrderType paintOrderType = svgStyle.paintOrderType(i);
         switch (paintOrderType) {
         case PT_FILL:
         case PT_STROKE:
         case PT_MARKERS:
             list->append(CSSPrimitiveValue::create(paintOrderType));
             break;
         case PT_NONE:
         default:
             ASSERT_NOT_REACHED();
             break;
         }
-    } while (paintorder >>= kPaintOrderBitwidth);
+    }
 
     return list.release();
 }
 
 static PassRefPtrWillBeRawPtr<CSSValue> adjustSVGPaintForCurrentColor(SVGPaintType paintType, const String& url, const Color& color, const Color& currentColor)
 {
     if (paintType >= SVG_PAINTTYPE_URI_NONE) {
         RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
         values->append(CSSPrimitiveValue::create(url, CSSPrimitiveValue::CSS_URI));
         if (paintType == SVG_PAINTTYPE_URI_NONE)
@@ skipping 1397 matching lines @@
     case CSSPropertyGlyphOrientationHorizontal:
         return glyphOrientationToCSSPrimitiveValue(svgStyle.glyphOrientationHorizontal());
     case CSSPropertyGlyphOrientationVertical: {
         if (RefPtrWillBeRawPtr<CSSPrimitiveValue> value = glyphOrientationToCSSPrimitiveValue(svgStyle.glyphOrientationVertical()))
             return value.release();
         if (svgStyle.glyphOrientationVertical() == GO_AUTO)
             return CSSPrimitiveValue::createIdentifier(CSSValueAuto);
         return nullptr;
     }
     case CSSPropertyPaintOrder:
-        return paintOrderToCSSValueList(svgStyle.paintOrder());
+        return paintOrderToCSSValueList(svgStyle);
     case CSSPropertyVectorEffect:
         return CSSPrimitiveValue::create(svgStyle.vectorEffect());
     case CSSPropertyMaskType:
         return CSSPrimitiveValue::create(svgStyle.maskType());
     case CSSPropertyMarker:
     case CSSPropertyEnableBackground:
         // the above properties are not yet implemented in the engine
         return nullptr;
     case CSSPropertyCx:
         return zoomAdjustedPixelValueForLength(svgStyle.cx(), style);
@@ skipping 72 matching lines @@
     case CSSPropertyAll:
         return nullptr;
     default:
         break;
     }
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
 }