Move viewport unit resolution to style recalc time

Source/core/css/CSSPrimitiveValue.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 126 matching lines @@
     };
 
     // This enum follows the BisonCSSParser::Units enum augmented with UNIT_FREQUENCY for frequencies.
     enum UnitCategory {
         UNumber,
         UPercent,
         ULength,
         UAngle,
         UTime,
         UFrequency,
-        UViewportPercentageLength,
         UResolution,
         UOther
     };
     static UnitCategory unitCategory(CSSPrimitiveValue::UnitTypes);
 
     bool isAngle() const
     {
         return m_primitiveUnitType == CSS_DEG
                || m_primitiveUnitType == CSS_RAD
                || m_primitiveUnitType == CSS_GRAD
                || m_primitiveUnitType == CSS_TURN;
     }
     bool isAttr() const { return m_primitiveUnitType == CSS_ATTR; }
     bool isCounter() const { return m_primitiveUnitType == CSS_COUNTER; }
     bool isFontIndependentLength() const { return m_primitiveUnitType >= CSS_PX && m_primitiveUnitType <= CSS_PC; }
     bool isFontRelativeLength() const
     {
         return m_primitiveUnitType == CSS_EMS
             || m_primitiveUnitType == CSS_EXS
             || m_primitiveUnitType == CSS_REMS
             || m_primitiveUnitType == CSS_CHS;
     }
     bool isLength() const
     {
         unsigned short type = primitiveType();
-        return (type >= CSS_EMS && type <= CSS_PC) || type == CSS_REMS || type == CSS_CHS;
+        return (type >= CSS_EMS && type <= CSS_PC) || type == CSS_REMS || type == CSS_CHS || isViewportPercentageLength();
     }
     bool isNumber() const { return primitiveType() == CSS_NUMBER; }
     bool isPercentage() const { return primitiveType() == CSS_PERCENTAGE; }
     bool isPx() const { return primitiveType() == CSS_PX; }
     bool isRect() const { return m_primitiveUnitType == CSS_RECT; }
     bool isRGBColor() const { return m_primitiveUnitType == CSS_RGBCOLOR; }
     bool isShape() const { return m_primitiveUnitType == CSS_SHAPE; }
     bool isString() const { return m_primitiveUnitType == CSS_STRING; }
     bool isTime() const { return m_primitiveUnitType == CSS_S || m_primitiveUnitType == CSS_MS; }
     bool isURI() const { return m_primitiveUnitType == CSS_URI; }
@@ skipping 122 matching lines @@
     CSSValueID getValueID() const { return m_primitiveUnitType == CSS_VALUE_ID ? m_value.valueID : CSSValueInvalid; }
 
     template<typename T> inline operator T() const; // Defined in CSSPrimitiveValueMappings.h
 
     String customCSSText(CSSTextFormattingFlags = QuoteCSSStringIfNeeded) const;
     String customSerializeResolvingVariables(const HashMap<AtomicString, String>&) const;
     bool hasVariableReference() const;
 
     bool isQuirkValue() { return m_isQuirkValue; }
 
-    Length viewportPercentageLength();
-
     PassRefPtr<CSSPrimitiveValue> cloneForCSSOM() const;
     void setCSSOMSafe() { m_isCSSOMSafe = true; }
 
     bool equals(const CSSPrimitiveValue&) const;
 
     static UnitTypes canonicalUnitTypeForCategory(UnitCategory);
     static double conversionToCanonicalUnitsScaleFactor(unsigned short unitType);
 
 private:
     CSSPrimitiveValue(CSSValueID);
@@ skipping 52 matching lines @@
         CSSBasicShape* shape;
         CSSCalcValue* calc;
     } m_value;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSPrimitiveValue, isPrimitiveValue());
 
 } // namespace WebCore
 
 #endif // CSSPrimitiveValue_h