Refactor propagation of parsing errors for SVG attributes

third_party/WebKit/Source/core/svg/SVGAnimatedLength.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 27 matching lines @@
 
 class SVGAnimatedLength : public SVGAnimatedProperty<SVGLength> {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<SVGAnimatedLength> create(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtrWillBeRawPtr<SVGLength> initialValue)
     {
         return adoptRefWillBeNoop(new SVGAnimatedLength(contextElement, attributeName, initialValue));
     }
 
     void setDefaultValueAsString(const String&);
-    void setBaseValueAsString(const String&, SVGParsingError&) override;
+    SVGParsingError setBaseValueAsString(const String&) override;
 
 protected:
     SVGAnimatedLength(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtrWillBeRawPtr<SVGLength> initialValue)
         : SVGAnimatedProperty<SVGLength>(contextElement, attributeName, initialValue)
     {
     }
 };
 
 } // namespace blink
 
 #endif // SVGAnimatedLength_h