Only communicate CSSPrimitiveValue references from SVGLength

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 48 matching lines @@
 
   float value(const SVGLengthContext&) const;
   void setValue(float, const SVGLengthContext&);
   void setValueAsNumber(float);
 
   float valueInSpecifiedUnits() const { return m_value->getFloatValue(); }
   void setValueInSpecifiedUnits(float value) {
     m_value = CSSPrimitiveValue::create(value, m_value->typeWithCalcResolved());
   }
 
-  const CSSPrimitiveValue* asCSSPrimitiveValue() const { return m_value.get(); }
+  const CSSPrimitiveValue& asCSSPrimitiveValue() const { return *m_value; }
 
   // Resolves LengthTypePercentage into a normalized floating point number (full
   // value is 1.0).
   float valueAsPercentage() const;
 
   // Returns a number to be used as percentage (so full value is 100)
   float valueAsPercentage100() const;
 
   // Scale the input value by this SVGLength. Higher precision than input *
   // valueAsPercentage().
@@ skipping 40 matching lines @@
 
   Member<const CSSPrimitiveValue> m_value;
   unsigned m_unitMode : 2;
 };
 
 DEFINE_SVG_PROPERTY_TYPE_CASTS(SVGLength);
 
 }  // namespace blink
 
 #endif  // SVGLength_h