Refactor propagation of parsing errors for SVG attributes

third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h

Index: third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h
diff --git a/third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h b/third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h
index 85008ba4c212dc5298e59f4875a428e7540bffcb..c5f84271c69564bcc52cb62575bf1df823a4c541 100644
--- a/third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h
+++ b/third_party/WebKit/Source/core/svg/properties/SVGAnimatedProperty.h
@@ -60,7 +60,7 @@ public:
     virtual void setAnimatedValue(PassRefPtrWillBeRawPtr<SVGPropertyBase>) = 0;
     virtual void animationEnded();
 
-    virtual void setBaseValueAsString(const String& value, SVGParsingError& parseError) = 0;
+    virtual SVGParsingError setBaseValueAsString(const String&) = 0;
     virtual bool needsSynchronizeAttribute() = 0;
     virtual void synchronizeAttribute();
 
@@ -143,14 +143,9 @@ public:
         return m_currentValue;
     }
 
-    void setBaseValueAsString(const String& value, SVGParsingError& parseError) override
+    SVGParsingError setBaseValueAsString(const String& value) override
     {
-        TrackExceptionState es;
-
-        m_baseValue->setValueAsString(value, es);
-
-        if (es.hadException())
-            parseError = ParsingAttributeFailedError;
+        return m_baseValue->setValueAsString(value);
     }
 
     PassRefPtrWillBeRawPtr<SVGPropertyBase> createAnimatedValue() override