Refactor SVGAnimatedLength negative values mode

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 13 matching lines @@
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/svg/SVGLengthContext.h"
 #include "core/svg/properties/SVGProperty.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class ExceptionState;
 class QualifiedName;
 
-enum SVGLengthNegativeValuesMode {
-    AllowNegativeLengths,
-    ForbidNegativeLengths
-};
-
 class SVGLengthTearOff;
 
 class SVGLength final : public SVGPropertyBase {
 public:
     typedef SVGLengthTearOff TearOffType;
 
     static PassRefPtrWillBeRawPtr<SVGLength> create(SVGLengthMode mode = SVGLengthMode::Other)
     {
         return adoptRefWillBeNoop(new SVGLength(mode));
     }
@@ skipping 48 matching lines @@
             || unitType == CSSPrimitiveValue::UnitType::Chs;
     }
     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&);
 
     void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
     void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> from, PassRefPtrWillBeRawPtr<SVGPropertyBase> to, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) override;
     float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement* contextElement) override;
 
     static AnimatedPropertyType classType() { return AnimatedLength; }
 
 private:
     SVGLength(SVGLengthMode);
     SVGLength(const SVGLength&);
 
     RefPtrWillBeMember<CSSPrimitiveValue> m_value;
     unsigned m_unitMode : 2;
 };
 
 DEFINE_SVG_PROPERTY_TYPE_CASTS(SVGLength);
 
 } // namespace blink
 
 #endif // SVGLength_h