Allow number-percentage calc() in border-image-slice

third_party/WebKit/Source/core/css/CSSCalculationValue.cpp

Index: third_party/WebKit/Source/core/css/CSSCalculationValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSCalculationValue.cpp b/third_party/WebKit/Source/core/css/CSSCalculationValue.cpp
index 8020556cc20db8a1ae541be5f3c5271cfe34a30d..b9b505df679ab0bf8a83b83b19d4f675a741b697 100644
--- a/third_party/WebKit/Source/core/css/CSSCalculationValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSCalculationValue.cpp
@@ -198,6 +198,9 @@ public:
     void accumulatePixelsAndPercent(const CSSToLengthConversionData& conversionData, PixelsAndPercent& value, float multiplier) const override
     {
         switch (m_category) {
+        case CalcNumber:
+            value.pixels += m_value->getFloatValue() * multiplier;
+            break;
         case CalcLength:
             value.pixels += m_value->computeLength<float>(conversionData) * multiplier;
             break;
@@ -719,10 +722,10 @@ CSSCalcExpressionNode* CSSCalcValue::createExpressionNode(CSSCalcExpressionNode*
     return CSSCalcBinaryOperation::create(leftSide, rightSide, op);
 }
 
-CSSCalcExpressionNode* CSSCalcValue::createExpressionNode(double pixels, double percent)
+CSSCalcExpressionNode* CSSCalcValue::createExpressionNode(double pixels, double percent, bool unitless)
 {
     return createExpressionNode(
-        createExpressionNode(CSSPrimitiveValue::create(pixels, CSSPrimitiveValue::UnitType::Pixels), pixels == trunc(pixels)),
+        createExpressionNode(CSSPrimitiveValue::create(pixels, unitless ? CSSPrimitiveValue::UnitType::Number : CSSPrimitiveValue::UnitType::Pixels), pixels == trunc(pixels)),
         createExpressionNode(CSSPrimitiveValue::create(percent, CSSPrimitiveValue::UnitType::Percentage), percent == trunc(percent)),
         CalcAdd);
 }