--- a/content/svg/content/src/SVGPathData.h
+++ b/content/svg/content/src/SVGPathData.h
@@ -116,17 +116,17 @@ public:
   void GetValueAsString(nsAString& aValue) const;
 
   PRBool IsEmpty() const {
     return mData.IsEmpty();
   }
 
 #ifdef DEBUG
   /**
-   * This method iterates over the encoded segment data and countes the number
+   * This method iterates over the encoded segment data and counts the number
    * of segments we currently have.
    */
   PRUint32 CountItems() const;
 #endif
 
   /**
    * Returns the number of *floats* in the encoding array, and NOT the number
    * of segments encoded in this object. (For that, see CountItems() above.)
@@ -254,28 +254,19 @@ public:
     return SVGPathData::CopyFrom(rhs);
   }
 
   /**
    * Exposed so that SVGPathData baseVals can be copied to
    * SVGPathDataAndOwner objects. Note that callers should also call
    * SetElement() when using this method!
    */
-  nsresult CopyFrom(const SVGPathData& rhs) {
-    return SVGPathData::CopyFrom(rhs);
-  }
-  const float& operator[](PRUint32 aIndex) const {
-    return SVGPathData::operator[](aIndex);
-  }
-  float& operator[](PRUint32 aIndex) {
-    return SVGPathData::operator[](aIndex);
-  }
-  PRBool SetLength(PRUint32 aNumberOfItems) {
-    return SVGPathData::SetLength(aNumberOfItems);
-  }
+  using SVGPathData::CopyFrom;
+  using SVGPathData::operator[];
+  using SVGPathData::SetLength;
 
 private:
   // We must keep a strong reference to our element because we may belong to a
   // cached baseVal nsSMILValue. See the comments starting at:
   // https://bugzilla.mozilla.org/show_bug.cgi?id=515116#c15
   nsRefPtr<nsSVGElement> mElement;
 };