Adding support of viewport units to SVG

third_party/WebKit/Source/core/svg/SVGLength.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 69 matching lines @@
     void newValueSpecifiedUnits(CSSPrimitiveValue::UnitType, float valueInSpecifiedUnits);
     void convertToSpecifiedUnits(CSSPrimitiveValue::UnitType, const SVGLengthContext&);
 
     // Helper functions
     static inline bool isRelativeUnit(CSSPrimitiveValue::UnitType unitType)
     {
         return unitType == CSSPrimitiveValue::UnitType::Percentage
             || unitType == CSSPrimitiveValue::UnitType::Ems
             || unitType == CSSPrimitiveValue::UnitType::Exs
             || unitType == CSSPrimitiveValue::UnitType::Rems
-            || unitType == CSSPrimitiveValue::UnitType::Chs;
+            || unitType == CSSPrimitiveValue::UnitType::Chs
+            || (unitType >= CSSPrimitiveValue::UnitType::ViewportWidth && unitType <= CSSPrimitiveValue::UnitType::ViewportMax);
     }
     inline bool isRelative() const { return isRelativeUnit(m_value->typeWithCalcResolved()); }
 
     bool isZero() const
     {
         return m_value->getFloatValue() == 0;
     }
 
     static SVGLengthMode lengthModeForAnimatedLengthAttribute(const QualifiedName&);
     static bool negativeValuesForbiddenForAnimatedLengthAttribute(const QualifiedName&);
@@ skipping 10 matching lines @@
 
     RefPtrWillBeMember<CSSPrimitiveValue> m_value;
     unsigned m_unitMode : 2;
 };
 
 DEFINE_SVG_PROPERTY_TYPE_CASTS(SVGLength);
 
 } // namespace blink
 
 #endif // SVGLength_h