Move viewport unit resolution to style recalc time

Source/core/css/CSSComputedStyleDeclaration.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.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 45 matching lines @@
 #include "core/css/Rect.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/PseudoElement.h"
 #include "core/page/RuntimeCSSEnabled.h"
 #include "core/frame/animation/AnimationController.h"
 #include "core/rendering/RenderBox.h"
 #include "core/rendering/RenderGrid.h"
-#include "core/rendering/RenderView.h"
 #include "core/rendering/style/ContentData.h"
 #include "core/rendering/style/CounterContent.h"
 #include "core/rendering/style/CursorList.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "core/rendering/style/ShadowList.h"
 #include "core/rendering/style/ShapeValue.h"
 #include "platform/fonts/FontFeatureSettings.h"
 #include "wtf/text/StringBuilder.h"
 
 #include "core/platform/graphics/filters/custom/CustomFilterOperation.h"
@@ skipping 527 matching lines @@
 {
     ASSERT_UNUSED(propertyID, propertyID == CSSPropertyBackgroundPosition || propertyID == CSSPropertyWebkitMaskPosition);
     RefPtr<CSSValueList> positionList = CSSValueList::createSpaceSeparated();
     positionList->append(cssValuePool().createValue(layer->backgroundXOrigin()));
     positionList->append(zoomAdjustedPixelValueForLength(layer->xPosition(), style));
     positionList->append(cssValuePool().createValue(layer->backgroundYOrigin()));
     positionList->append(zoomAdjustedPixelValueForLength(layer->yPosition(), style));
     return positionList.release();
 }
 
-static PassRefPtr<CSSValue> valueForPositionOffset(RenderStyle& style, CSSPropertyID propertyID, const RenderObject* renderer, RenderView* renderView)
+static PassRefPtr<CSSValue> valueForPositionOffset(RenderStyle& style, CSSPropertyID propertyID, const RenderObject* renderer)
 {
     Length l;
     switch (propertyID) {
         case CSSPropertyLeft:
             l = style.left();
             break;
         case CSSPropertyRight:
             l = style.right();
             break;
         case CSSPropertyTop:
             l = style.top();
             break;
         case CSSPropertyBottom:
             l = style.bottom();
             break;
         default:
             return 0;
     }
 
     if (l.isPercent() && renderer && renderer->isBox()) {
         LayoutUnit containingBlockSize = (propertyID == CSSPropertyLeft || propertyID == CSSPropertyRight) ?
             toRenderBox(renderer)->containingBlockLogicalWidthForContent() :
             toRenderBox(renderer)->containingBlockLogicalHeightForContent(ExcludeMarginBorderPadding);
-        return zoomAdjustedPixelValue(valueForLength(l, containingBlockSize, 0), style);
+        return zoomAdjustedPixelValue(valueForLength(l, containingBlockSize), style);
     }
-    if (l.isViewportPercentage())
-        return zoomAdjustedPixelValue(valueForLength(l, 0, renderView), style);
     if (l.isAuto()) {
         // FIXME: It's not enough to simply return "auto" values for one offset if the other side is defined.
         // In other words if left is auto and right is not auto, then left's computed value is negative right().
         // So we should get the opposite length unit and see if it is auto.
         return cssValuePool().createValue(l);
     }
 
     return zoomAdjustedPixelValueForLength(l, style);
 }
 
@@ skipping 308 matching lines @@
         default:
             filterValue = CSSFilterValue::create(CSSFilterValue::UnknownFilterOperation);
             break;
         }
         list->append(filterValue.release());
     }
 
     return list.release();
 }
 
-static PassRefPtr<CSSValue> specifiedValueForGridTrackBreadth(const GridLength& trackBreadth, const RenderStyle& style, RenderView* renderView)
+static PassRefPtr<CSSValue> specifiedValueForGridTrackBreadth(const GridLength& trackBreadth, const RenderStyle& style)
 {
     if (!trackBreadth.isLength())
         return cssValuePool().createValue(trackBreadth.flex(), CSSPrimitiveValue::CSS_FR);
 
     const Length& trackBreadthLength = trackBreadth.length();
     if (trackBreadthLength.isAuto())
         return cssValuePool().createIdentifierValue(CSSValueAuto);
-    if (trackBreadthLength.isViewportPercentage())
-        return zoomAdjustedPixelValue(valueForLength(trackBreadthLength, 0, renderView), style);
     return zoomAdjustedPixelValueForLength(trackBreadthLength, style);
 }
 
-static PassRefPtr<CSSValue> specifiedValueForGridTrackSize(const GridTrackSize& trackSize, const RenderStyle& style, RenderView* renderView)
+static PassRefPtr<CSSValue> specifiedValueForGridTrackSize(const GridTrackSize& trackSize, const RenderStyle& style)
 {
     switch (trackSize.type()) {
     case LengthTrackSizing:
-        return specifiedValueForGridTrackBreadth(trackSize.length(), style, renderView);
+        return specifiedValueForGridTrackBreadth(trackSize.length(), style);
     case MinMaxTrackSizing:
         RefPtr<CSSValueList> minMaxTrackBreadths = CSSValueList::createCommaSeparated();
-        minMaxTrackBreadths->append(specifiedValueForGridTrackBreadth(trackSize.minTrackBreadth(), style, renderView));
-        minMaxTrackBreadths->append(specifiedValueForGridTrackBreadth(trackSize.maxTrackBreadth(), style, renderView));
+        minMaxTrackBreadths->append(specifiedValueForGridTrackBreadth(trackSize.minTrackBreadth(), style));
+        minMaxTrackBreadths->append(specifiedValueForGridTrackBreadth(trackSize.maxTrackBreadth(), style));
         return CSSFunctionValue::create("minmax(", minMaxTrackBreadths);
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 static void addValuesForNamedGridLinesAtIndex(const OrderedNamedGridLines& orderedNamedGridLines, size_t i, CSSValueList& list)
 {
     const Vector<String>& namedGridLines = orderedNamedGridLines.get(i);
     if (namedGridLines.isEmpty())
         return;
 
     RefPtr<CSSGridLineNamesValue> lineNames = CSSGridLineNamesValue::create();
     for (size_t j = 0; j < namedGridLines.size(); ++j)
         lineNames->append(cssValuePool().createValue(namedGridLines[j], CSSPrimitiveValue::CSS_STRING));
     list.append(lineNames.release());
 }
 
-static PassRefPtr<CSSValue> valueForGridTrackList(GridTrackSizingDirection direction, RenderObject* renderer, const RenderStyle& style, RenderView* renderView)
+static PassRefPtr<CSSValue> valueForGridTrackList(GridTrackSizingDirection direction, RenderObject* renderer, const RenderStyle& style)
 {
     const Vector<GridTrackSize>& trackSizes = direction == ForColumns ? style.gridDefinitionColumns() : style.gridDefinitionRows();
     const OrderedNamedGridLines& orderedNamedGridLines = direction == ForColumns ? style.orderedNamedGridColumnLines() : style.orderedNamedGridRowLines();
 
     // Handle the 'none' case here.
     if (!trackSizes.size()) {
         ASSERT(orderedNamedGridLines.isEmpty());
         return cssValuePool().createIdentifierValue(CSSValueNone);
     }
 
     RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     if (renderer && renderer->isRenderGrid()) {
         const Vector<LayoutUnit>& trackPositions = direction == ForColumns ? toRenderGrid(renderer)->columnPositions() : toRenderGrid(renderer)->rowPositions();
         // There are at least #tracks + 1 grid lines (trackPositions). Apart from that, the grid container can generate implicit grid tracks,
         // so we'll have more trackPositions than trackSizes as the latter only contain the explicit grid.
         ASSERT(trackPositions.size() - 1 >= trackSizes.size());
 
         for (size_t i = 0; i < trackSizes.size(); ++i) {
             addValuesForNamedGridLinesAtIndex(orderedNamedGridLines, i, *list);
             list->append(zoomAdjustedPixelValue(trackPositions[i + 1] - trackPositions[i], style));
         }
     } else {
         for (size_t i = 0; i < trackSizes.size(); ++i) {
             addValuesForNamedGridLinesAtIndex(orderedNamedGridLines, i, *list);
-            list->append(specifiedValueForGridTrackSize(trackSizes[i], style, renderView));
+            list->append(specifiedValueForGridTrackSize(trackSizes[i], style));
         }
     }
     // Those are the trailing <string>* allowed in the syntax.
     addValuesForNamedGridLinesAtIndex(orderedNamedGridLines, trackSizes.size(), *list);
     return list.release();
 }
 
 static PassRefPtr<CSSValue> valueForGridPosition(const GridPosition& position)
 {
     if (position.isAuto())
@@ skipping 435 matching lines @@
 
 static PassRefPtr<CSSValueList> valueForFontFamily(RenderStyle& style)
 {
     const FontFamily& firstFamily = style.fontDescription().family();
     RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
     for (const FontFamily* family = &firstFamily; family; family = family->next())
         list->append(valueForFamily(family->family()));
     return list.release();
 }
 
-static PassRefPtr<CSSPrimitiveValue> valueForLineHeight(RenderStyle& style, RenderView* renderView)
+static PassRefPtr<CSSPrimitiveValue> valueForLineHeight(RenderStyle& style)
 {
     Length length = style.lineHeight();
     if (length.isNegative())
         return cssValuePool().createIdentifierValue(CSSValueNormal);
 
-    return zoomAdjustedPixelValue(floatValueForLength(length, style.fontDescription().specifiedSize(), renderView), style);
+    return zoomAdjustedPixelValue(floatValueForLength(length, style.fontDescription().specifiedSize()), style);
 }
 
 static PassRefPtr<CSSPrimitiveValue> valueForFontSize(RenderStyle& style)
 {
     return zoomAdjustedPixelValue(style.fontDescription().computedPixelSize(), style);
 }
 
 static PassRefPtr<CSSPrimitiveValue> valueForFontStyle(RenderStyle& style)
 {
     if (style.fontDescription().italic())
@@ skipping 336 matching lines @@
             return cssValuePool().createValue(style->borderLeftStyle());
         case CSSPropertyBorderTopWidth:
             return zoomAdjustedPixelValue(style->borderTopWidth(), *style);
         case CSSPropertyBorderRightWidth:
             return zoomAdjustedPixelValue(style->borderRightWidth(), *style);
         case CSSPropertyBorderBottomWidth:
             return zoomAdjustedPixelValue(style->borderBottomWidth(), *style);
         case CSSPropertyBorderLeftWidth:
             return zoomAdjustedPixelValue(style->borderLeftWidth(), *style);
         case CSSPropertyBottom:
-            return valueForPositionOffset(*style, CSSPropertyBottom, renderer, m_node->document().renderView());
+            return valueForPositionOffset(*style, CSSPropertyBottom, renderer);
         case CSSPropertyWebkitBoxAlign:
             return cssValuePool().createValue(style->boxAlign());
         case CSSPropertyWebkitBoxDecorationBreak:
             if (style->boxDecorationBreak() == DSLICE)
                 return cssValuePool().createIdentifierValue(CSSValueSlice);
         return cssValuePool().createIdentifierValue(CSSValueClone);
         case CSSPropertyWebkitBoxDirection:
             return cssValuePool().createValue(style->boxDirection());
         case CSSPropertyWebkitBoxFlex:
             return cssValuePool().createValue(style->boxFlex(), CSSPrimitiveValue::CSS_NUMBER);
@@ skipping 117 matching lines @@
         case CSSPropertyFloat:
             if (style->display() != NONE && style->hasOutOfFlowPosition())
                 return cssValuePool().createIdentifierValue(CSSValueNone);
             return cssValuePool().createValue(style->floating());
         case CSSPropertyFont: {
             RefPtr<CSSFontValue> computedFont = CSSFontValue::create();
             computedFont->style = valueForFontStyle(*style);
             computedFont->variant = valueForFontVariant(*style);
             computedFont->weight = valueForFontWeight(*style);
             computedFont->size = valueForFontSize(*style);
-            computedFont->lineHeight = valueForLineHeight(*style, m_node->document().renderView());
+            computedFont->lineHeight = valueForLineHeight(*style);
             computedFont->family = valueForFontFamily(*style);
             return computedFont.release();
         }
         case CSSPropertyFontFamily: {
             RefPtr<CSSValueList> fontFamilyList = valueForFontFamily(*style);
             // If there's only a single family, return that as a CSSPrimitiveValue.
             // NOTE: Gecko always returns this as a comma-separated CSSPrimitiveValue string.
             if (fontFamilyList->length() == 1)
                 return fontFamilyList->item(0);
             return fontFamilyList.release();
@@ skipping 20 matching lines @@
         }
         case CSSPropertyGridAutoFlow:
             return cssValuePool().createValue(style->gridAutoFlow());
 
         // Specs mention that getComputedStyle() should return the used value of the property instead of the computed
         // one for grid-definition-{rows|columns} but not for the grid-auto-{rows|columns} as things like
         // grid-auto-columns: 2fr; cannot be resolved to a value in pixels as the '2fr' means very different things
         // depending on the size of the explicit grid or the number of implicit tracks added to the grid. See
         // http://lists.w3.org/Archives/Public/www-style/2013Nov/0014.html
         case CSSPropertyGridAutoColumns:
-            return specifiedValueForGridTrackSize(style->gridAutoColumns(), *style, m_node->document().renderView());
+            return specifiedValueForGridTrackSize(style->gridAutoColumns(), *style);
         case CSSPropertyGridAutoRows:
-            return specifiedValueForGridTrackSize(style->gridAutoRows(), *style, m_node->document().renderView());
+            return specifiedValueForGridTrackSize(style->gridAutoRows(), *style);
 
         case CSSPropertyGridDefinitionColumns:
-            return valueForGridTrackList(ForColumns, renderer, *style, m_node->document().renderView());
+            return valueForGridTrackList(ForColumns, renderer, *style);
         case CSSPropertyGridDefinitionRows:
-            return valueForGridTrackList(ForRows, renderer, *style, m_node->document().renderView());
+            return valueForGridTrackList(ForRows, renderer, *style);
 
         case CSSPropertyGridColumnStart:
             return valueForGridPosition(style->gridColumnStart());
         case CSSPropertyGridColumnEnd:
             return valueForGridPosition(style->gridColumnEnd());
         case CSSPropertyGridRowStart:
             return valueForGridPosition(style->gridRowStart());
         case CSSPropertyGridRowEnd:
             return valueForGridPosition(style->gridRowEnd());
         case CSSPropertyGridColumn:
@@ skipping 30 matching lines @@
             return cssValuePool().createValue(style->hyphenationString(), CSSPrimitiveValue::CSS_STRING);
         case CSSPropertyWebkitBorderFit:
             if (style->borderFit() == BorderFitBorder)
                 return cssValuePool().createIdentifierValue(CSSValueBorder);
             return cssValuePool().createIdentifierValue(CSSValueLines);
         case CSSPropertyImageRendering:
             return CSSPrimitiveValue::create(style->imageRendering());
         case CSSPropertyIsolation:
             return cssValuePool().createValue(style->isolation());
         case CSSPropertyLeft:
-            return valueForPositionOffset(*style, CSSPropertyLeft, renderer, m_node->document().renderView());
+            return valueForPositionOffset(*style, CSSPropertyLeft, renderer);
         case CSSPropertyLetterSpacing:
             if (!style->letterSpacing())
                 return cssValuePool().createIdentifierValue(CSSValueNormal);
             return zoomAdjustedPixelValue(style->letterSpacing(), *style);
         case CSSPropertyWebkitLineClamp:
             if (style->lineClamp().isNone())
                 return cssValuePool().createIdentifierValue(CSSValueNone);
             return cssValuePool().createValue(style->lineClamp().value(), style->lineClamp().isPercentage() ? CSSPrimitiveValue::CSS_PERCENTAGE : CSSPrimitiveValue::CSS_NUMBER);
         case CSSPropertyLineHeight:
-            return valueForLineHeight(*style, m_node->document().renderView());
+            return valueForLineHeight(*style);
         case CSSPropertyListStyleImage:
             if (style->listStyleImage())
                 return style->listStyleImage()->cssValue();
             return cssValuePool().createIdentifierValue(CSSValueNone);
         case CSSPropertyListStylePosition:
             return cssValuePool().createValue(style->listStylePosition());
         case CSSPropertyListStyleType:
             return cssValuePool().createValue(style->listStyleType());
         case CSSPropertyWebkitLocale:
             if (style->locale().isNull())
                 return cssValuePool().createIdentifierValue(CSSValueAuto);
             return cssValuePool().createValue(style->locale(), CSSPrimitiveValue::CSS_STRING);
         case CSSPropertyMarginTop: {
             Length marginTop = style->marginTop();
             if (marginTop.isFixed() || !renderer || !renderer->isBox())
                 return zoomAdjustedPixelValueForLength(marginTop, *style);
             return zoomAdjustedPixelValue(toRenderBox(renderer)->marginTop(), *style);
         }
         case CSSPropertyMarginRight: {
             Length marginRight = style->marginRight();
             if (marginRight.isFixed() || !renderer || !renderer->isBox())
                 return zoomAdjustedPixelValueForLength(marginRight, *style);
             float value;
-            if (marginRight.isPercent() || marginRight.isViewportPercentage()) {
+            if (marginRight.isPercent()) {
                 // RenderBox gives a marginRight() that is the distance between the right-edge of the child box
                 // and the right-edge of the containing box, when display == BLOCK. Let's calculate the absolute
                 // value of the specified margin-right % instead of relying on RenderBox's marginRight() value.
-                value = minimumValueForLength(marginRight, toRenderBox(renderer)->containingBlockLogicalWidthForContent(), m_node->document().renderView());
+                value = minimumValueForLength(marginRight, toRenderBox(renderer)->containingBlockLogicalWidthForContent());
             } else {
                 value = toRenderBox(renderer)->marginRight();
             }
             return zoomAdjustedPixelValue(value, *style);
         }
         case CSSPropertyMarginBottom: {
             Length marginBottom = style->marginBottom();
             if (marginBottom.isFixed() || !renderer || !renderer->isBox())
                 return zoomAdjustedPixelValueForLength(marginBottom, *style);
             return zoomAdjustedPixelValue(toRenderBox(renderer)->marginBottom(), *style);
@@ skipping 91 matching lines @@
         case CSSPropertyPageBreakInside: {
             EPageBreak pageBreak = style->pageBreakInside();
             ASSERT(pageBreak != PBALWAYS);
             if (pageBreak == PBALWAYS)
                 return 0;
             return cssValuePool().createValue(style->pageBreakInside());
         }
         case CSSPropertyPosition:
             return cssValuePool().createValue(style->position());
         case CSSPropertyRight:
-            return valueForPositionOffset(*style, CSSPropertyRight, renderer, m_node->document().renderView());
+            return valueForPositionOffset(*style, CSSPropertyRight, renderer);
         case CSSPropertyWebkitRubyPosition:
             return cssValuePool().createValue(style->rubyPosition());
         case CSSPropertyTableLayout:
             return cssValuePool().createValue(style->tableLayout());
         case CSSPropertyTextAlign:
             return cssValuePool().createValue(style->textAlign());
         case CSSPropertyTextAlignLast:
             return cssValuePool().createValue(style->textAlignLast());
         case CSSPropertyTextDecoration:
             return valuesForShorthandProperty(textDecorationShorthand());
@@ skipping 55 matching lines @@
             return cssValuePool().createIdentifierValue(CSSValueClip);
         case CSSPropertyWebkitTextSecurity:
             return cssValuePool().createValue(style->textSecurity());
         case CSSPropertyWebkitTextStrokeColor:
             return currentColorOrValidColor(*style, style->textStrokeColor());
         case CSSPropertyWebkitTextStrokeWidth:
             return zoomAdjustedPixelValue(style->textStrokeWidth(), *style);
         case CSSPropertyTextTransform:
             return cssValuePool().createValue(style->textTransform());
         case CSSPropertyTop:
-            return valueForPositionOffset(*style, CSSPropertyTop, renderer, m_node->document().renderView());
+            return valueForPositionOffset(*style, CSSPropertyTop, renderer);
         case CSSPropertyTouchAction:
             return cssValuePool().createValue(style->touchAction());
         case CSSPropertyTouchActionDelay:
             return cssValuePool().createValue(style->touchActionDelay());
         case CSSPropertyUnicodeBidi:
             return cssValuePool().createValue(style->unicodeBidi());
         case CSSPropertyVerticalAlign:
             switch (style->verticalAlign()) {
                 case BASELINE:
                     return cssValuePool().createIdentifierValue(CSSValueBaseline);
@@ skipping 245 matching lines @@
             if (!style->hasPerspective())
                 return cssValuePool().createIdentifierValue(CSSValueNone);
             return zoomAdjustedPixelValue(style->perspective(), *style);
         case CSSPropertyWebkitPerspectiveOrigin: {
             RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
             if (renderer) {
                 LayoutRect box;
                 if (renderer->isBox())
                     box = toRenderBox(renderer)->borderBoxRect();
 
-                RenderView* renderView = m_node->document().renderView();
-                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->perspectiveOriginX(), box.width(), renderView), *style));
-                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->perspectiveOriginY(), box.height(), renderView), *style));
+                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->perspectiveOriginX(), box.width()), *style));
+                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->perspectiveOriginY(), box.height()), *style));
             }
             else {
                 list->append(zoomAdjustedPixelValueForLength(style->perspectiveOriginX(), *style));
                 list->append(zoomAdjustedPixelValueForLength(style->perspectiveOriginY(), *style));
 
             }
             return list.release();
         }
         case CSSPropertyWebkitRtlOrdering:
             return cssValuePool().createIdentifierValue(style->rtlOrdering() ? CSSValueVisual : CSSValueLogical);
@@ skipping 25 matching lines @@
             return cssValuePool().createValue(style->speak());
         case CSSPropertyWebkitTransform:
             return computedTransform(renderer, *style);
         case CSSPropertyWebkitTransformOrigin: {
             RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
             if (renderer) {
                 LayoutRect box;
                 if (renderer->isBox())
                     box = toRenderBox(renderer)->borderBoxRect();
 
-                RenderView* renderView = m_node->document().renderView();
-                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->transformOriginX(), box.width(), renderView), *style));
-                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->transformOriginY(), box.height(), renderView), *style));
+                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->transformOriginX(), box.width()), *style));
+                list->append(zoomAdjustedPixelValue(minimumValueForLength(style->transformOriginY(), box.height()), *style));
                 if (style->transformOriginZ() != 0)
                     list->append(zoomAdjustedPixelValue(style->transformOriginZ(), *style));
             } else {
                 list->append(zoomAdjustedPixelValueForLength(style->transformOriginX(), *style));
                 list->append(zoomAdjustedPixelValueForLength(style->transformOriginY(), *style));
                 if (style->transformOriginZ() != 0)
                     list->append(zoomAdjustedPixelValue(style->transformOriginZ(), *style));
             }
             return list.release();
         }
@@ skipping 582 matching lines @@
     static const CSSPropertyID propertiesAfterSlashSeperator[3] = { CSSPropertyBackgroundSize, CSSPropertyBackgroundOrigin,
                                                                     CSSPropertyBackgroundClip };
 
     RefPtr<CSSValueList> list = CSSValueList::createSlashSeparated();
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesBeforeSlashSeperator, WTF_ARRAY_LENGTH(propertiesBeforeSlashSeperator))));
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesAfterSlashSeperator, WTF_ARRAY_LENGTH(propertiesAfterSlashSeperator))));
     return list.release();
 }
 
 } // namespace WebCore