Adding support of viewport units to SVG

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

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * 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 84 matching lines @@
     m_value = CSSPrimitiveValue::create(
         context.convertValueFromUserUnits(value, unitMode(), m_value->typeWithCalcResolved()),
         m_value->typeWithCalcResolved());
 }
 
 bool isSupportedCSSUnitType(CSSPrimitiveValue::UnitType type)
 {
     return type != CSSPrimitiveValue::UnitType::Unknown
         && (type <= CSSPrimitiveValue::UnitType::UserUnits
             || type == CSSPrimitiveValue::UnitType::Chs
-            || type == CSSPrimitiveValue::UnitType::Rems);
+            || type == CSSPrimitiveValue::UnitType::Rems
+            || (type >= CSSPrimitiveValue::UnitType::ViewportWidth && type <= CSSPrimitiveValue::UnitType::ViewportMax));
 }
 
 void SVGLength::setUnitType(CSSPrimitiveValue::UnitType type)
 {
     ASSERT(isSupportedCSSUnitType(type));
     m_value = CSSPrimitiveValue::create(m_value->getFloatValue(), type);
 }
 
 float SVGLength::valueAsPercentage() const
 {
@@ skipping 158 matching lines @@
 
 float SVGLength::calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, SVGElement* contextElement)
 {
     SVGLengthContext lengthContext(contextElement);
     RefPtrWillBeRawPtr<SVGLength> toLength = toSVGLength(toValue);
 
     return fabsf(toLength->value(lengthContext) - value(lengthContext));
 }
 
 }