diff --git a/content/svg/content/src/nsSVGGradientElement.cpp b/content/svg/content/src/nsSVGGradientElement.cpp
index 02ad42f02af3..1d81f993d42c 100644
--- a/content/svg/content/src/nsSVGGradientElement.cpp
+++ b/content/svg/content/src/nsSVGGradientElement.cpp
@@ -94,20 +94,6 @@ nsSVGGradientElement::nsSVGGradientElement(already_AddRefed<nsINodeInfo> aNodeIn
 {
 }
 
-nsresult
-nsSVGGradientElement::BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                    const nsAString* aValue, PRBool aNotify)
-{
-  if (aNamespaceID == kNameSpaceID_None &&
-      aName == nsGkAtoms::gradientTransform &&
-      !mGradientTransform &&
-      !(mGradientTransform = new SVGAnimatedTransformList()))
-    return NS_ERROR_OUT_OF_MEMORY;
-
-  return nsSVGGradientElementBase::BeforeSetAttr(aNamespaceID, aName,
-                                                 aValue, aNotify);
-}
-
 //----------------------------------------------------------------------
 // nsSVGElement methods
 
diff --git a/content/svg/content/src/nsSVGGradientElement.h b/content/svg/content/src/nsSVGGradientElement.h
index 28d2f9a02d51..b58be3cdfa14 100644
--- a/content/svg/content/src/nsSVGGradientElement.h
+++ b/content/svg/content/src/nsSVGGradientElement.h
@@ -92,9 +92,6 @@ protected:
   nsSVGString mStringAttributes[1];
   static StringInfo sStringInfo[1];
 
-  virtual nsresult BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                 const nsAString* aValue, PRBool aNotify);
-
   // nsIDOMSVGGradientElement values
   nsAutoPtr<mozilla::SVGAnimatedTransformList> mGradientTransform;
 };
diff --git a/content/svg/content/src/nsSVGGraphicElement.cpp b/content/svg/content/src/nsSVGGraphicElement.cpp
index d2daaf42ca9d..d2490988c60d 100644
--- a/content/svg/content/src/nsSVGGraphicElement.cpp
+++ b/content/svg/content/src/nsSVGGraphicElement.cpp
@@ -220,17 +220,3 @@ nsSVGGraphicElement::GetAnimatedTransformList()
   }
   return mTransforms;
 }
-
-nsresult
-nsSVGGraphicElement::BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                   const nsAString* aValue, PRBool aNotify)
-{
-  if (aNamespaceID == kNameSpaceID_None &&
-      aName == nsGkAtoms::transform &&
-      !mTransforms &&
-      !(mTransforms = new SVGAnimatedTransformList()))
-    return NS_ERROR_OUT_OF_MEMORY;
-
-  return nsSVGGraphicElementBase::BeforeSetAttr(aNamespaceID, aName,
-                                                aValue, aNotify);
-}
diff --git a/content/svg/content/src/nsSVGGraphicElement.h b/content/svg/content/src/nsSVGGraphicElement.h
index 964a6b3aa650..f502e9060d98 100644
--- a/content/svg/content/src/nsSVGGraphicElement.h
+++ b/content/svg/content/src/nsSVGGraphicElement.h
@@ -73,9 +73,6 @@ public:
 protected:
   // nsSVGElement overrides
   virtual PRBool IsEventName(nsIAtom* aName);
-  
-  virtual nsresult BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                 const nsAString* aValue, PRBool aNotify);
 
   nsAutoPtr<mozilla::SVGAnimatedTransformList> mTransforms;
 
diff --git a/content/svg/content/src/nsSVGPatternElement.cpp b/content/svg/content/src/nsSVGPatternElement.cpp
index b2c640736245..5956adcf46c6 100644
--- a/content/svg/content/src/nsSVGPatternElement.cpp
+++ b/content/svg/content/src/nsSVGPatternElement.cpp
@@ -98,20 +98,6 @@ nsSVGPatternElement::nsSVGPatternElement(already_AddRefed<nsINodeInfo> aNodeInfo
 {
 }
 
-nsresult
-nsSVGPatternElement::BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                   const nsAString* aValue, PRBool aNotify)
-{
-  if (aNamespaceID == kNameSpaceID_None &&
-      aName == nsGkAtoms::patternTransform &&
-      !mPatternTransform &&
-      !(mPatternTransform = new SVGAnimatedTransformList()))
-    return NS_ERROR_OUT_OF_MEMORY;
-
-  return nsSVGPatternElementBase::BeforeSetAttr(aNamespaceID, aName,
-                                                aValue, aNotify);
-}
-
 //----------------------------------------------------------------------
 // nsIDOMNode method
 
diff --git a/content/svg/content/src/nsSVGPatternElement.h b/content/svg/content/src/nsSVGPatternElement.h
index 10c2048cf506..79bc1f0b8079 100644
--- a/content/svg/content/src/nsSVGPatternElement.h
+++ b/content/svg/content/src/nsSVGPatternElement.h
@@ -100,9 +100,6 @@ public:
   }
 protected:
 
-  virtual nsresult BeforeSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
-                                 const nsAString* aValue, PRBool aNotify);
-
   virtual LengthAttributesInfo GetLengthInfo();
   virtual EnumAttributesInfo GetEnumInfo();
   virtual nsSVGViewBox *GetViewBox();