Refactor propagation of parsing errors for SVG attributes

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

Index: third_party/WebKit/Source/core/svg/SVGString.h
diff --git a/third_party/WebKit/Source/core/svg/SVGString.h b/third_party/WebKit/Source/core/svg/SVGString.h
index d7472ff1fd6d4526b672ac45f0416917fa00217b..7388e990063eef8190962d5d24085b8fc3f80363 100644
--- a/third_party/WebKit/Source/core/svg/SVGString.h
+++ b/third_party/WebKit/Source/core/svg/SVGString.h
@@ -31,12 +31,11 @@
 #ifndef SVGString_h
 #define SVGString_h
 
+#include "core/svg/SVGParsingError.h"
 #include "core/svg/properties/SVGProperty.h"
 
 namespace blink {
 
-class ExceptionState;
-
 class SVGString : public SVGPropertyBase {
 public:
     // SVGString does not have a tear-off type.
@@ -60,7 +59,11 @@ public:
     }
 
     String valueAsString() const override { return m_value; }
-    void setValueAsString(const String& value, ExceptionState&) { m_value = value; }
+    SVGParsingError setValueAsString(const String& value)
+    {
+        m_value = value;
+        return NoError;
+    }
 
     void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
     void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> from, PassRefPtrWillBeRawPtr<SVGPropertyBase> to, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) override;