Refactor propagation of parsing errors for SVG attributes

third_party/WebKit/Source/core/svg/SVGNumberList.cpp

Index: third_party/WebKit/Source/core/svg/SVGNumberList.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGNumberList.cpp b/third_party/WebKit/Source/core/svg/SVGNumberList.cpp
index c3a5867ccc71c5461cc1da902e640efab709ec90..03f74dfda61f4a8472d5f59b41f3e2fde4336a2d 100644
--- a/third_party/WebKit/Source/core/svg/SVGNumberList.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGNumberList.cpp
@@ -69,11 +69,11 @@ bool SVGNumberList::parse(const CharType*& ptr, const CharType* end)
     return true;
 }
 
-void SVGNumberList::setValueAsString(const String& value, ExceptionState& exceptionState)
+SVGParsingError SVGNumberList::setValueAsString(const String& value)
 {
     if (value.isEmpty()) {
         clear();
-        return;
+        return NoError;
     }
 
     bool valid = false;
@@ -88,10 +88,11 @@ void SVGNumberList::setValueAsString(const String& value, ExceptionState& except
     }
 
     if (!valid) {
-        exceptionState.throwDOMException(SyntaxError, "Problem parsing number list \""+value+"\"");
         // No call to |clear()| here. SVG policy is to use valid items before error.
         // Spec: http://www.w3.org/TR/SVG/single-page.html#implnote-ErrorProcessing
+        return ParsingAttributeFailedError;
     }
+    return NoError;
 }
 
 void SVGNumberList::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement* contextElement)