Adding support of viewport units to SVG

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

 /*
  * Copyright (C) Research In Motion Limited 2011. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 70 matching lines @@
 private:
     float valueForLength(const Length&, float zoom, SVGLengthMode) const;
     static float valueForLength(const Length&, float zoom, float dimension);
 
     float convertValueFromUserUnitsToEXS(float value) const;
     float convertValueFromEXSToUserUnits(float value) const;
 
     float convertValueFromUserUnitsToCHS(float value) const;
     float convertValueFromCHSToUserUnits(float value) const;
 
+    float convertValueFromUserUnitsToViewportUnits(CSSPrimitiveValue::UnitType toUnit, float value) const;
+    float convertValueFromViewportUnitsToUserUnits(CSSPrimitiveValue::UnitType fromUnit, float value) const;
+
     RawPtrWillBeMember<const SVGElement> m_context;
 };
 
 } // namespace blink
 
 #endif // SVGLengthContext_h