Refactor propagation of parsing errors for SVG attributes

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

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 
     // SVGAnimatedPropertyBase:
     SVGPropertyBase* currentValueBase() override;
     const SVGPropertyBase& baseValueBase() const override;
     bool isAnimating() const override;
     PassRefPtrWillBeRawPtr<SVGPropertyBase> createAnimatedValue() override;
     void setAnimatedValue(PassRefPtrWillBeRawPtr<SVGPropertyBase>) override;
     void animationEnded() override;
     bool needsSynchronizeAttribute() override;
 
-    void setBaseValueAsString(const String& value, SVGParsingError& parseError);
+    SVGParsingError setBaseValueAsString(const String&);
 
     SVGStringList* value() { return m_value.get(); }
     SVGStringListTearOff* tearOff();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     SVGStaticStringList(SVGElement*, const QualifiedName&);
 
     RefPtrWillBeMember<SVGStringList> m_value;
     RefPtrWillBeMember<SVGStringListTearOff> m_tearOff;
 };
 
 }
 
 #endif