--- a/layout/svg/SVGFEUnstyledLeafFrame.cpp
+++ b/layout/svg/SVGFEUnstyledLeafFrame.cpp
@@ -5,39 +5,37 @@
 
 // Keep in (case-insensitive) order:
 #include "nsContainerFrame.h"
 #include "nsFrame.h"
 #include "nsGkAtoms.h"
 #include "nsSVGEffects.h"
 #include "nsSVGFilters.h"
 
-typedef nsFrame SVGFEUnstyledLeafFrameBase;
-
-class SVGFEUnstyledLeafFrame : public SVGFEUnstyledLeafFrameBase
+class SVGFEUnstyledLeafFrame : public nsFrame
 {
   friend nsIFrame*
   NS_NewSVGFEUnstyledLeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
 protected:
   explicit SVGFEUnstyledLeafFrame(nsStyleContext* aContext)
-    : SVGFEUnstyledLeafFrameBase(aContext)
+    : nsFrame(aContext)
   {
     AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
   }
 
 public:
   NS_DECL_FRAMEARENA_HELPERS
 
   virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
                                 const nsRect&           aDirtyRect,
                                 const nsDisplayListSet& aLists) override {}
 
   virtual bool IsFrameOfType(uint32_t aFlags) const override
   {
-    return SVGFEUnstyledLeafFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
+    return nsFrame::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
   }
 
 #ifdef DEBUG_FRAME_DUMP
   virtual nsresult GetFrameName(nsAString& aResult) const override
   {
     return MakeFrameName(NS_LITERAL_STRING("SVGFEUnstyledLeaf"), aResult);
   }
 #endif
@@ -80,11 +78,10 @@ SVGFEUnstyledLeafFrame::AttributeChanged
 {
   SVGFEUnstyledElement *element = static_cast<SVGFEUnstyledElement*>(mContent);
   if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
     MOZ_ASSERT(GetParent()->GetParent()->GetType() == nsGkAtoms::svgFilterFrame,
                "Observers observe the filter, so that's what we must invalidate");
     nsSVGEffects::InvalidateDirectRenderingObservers(GetParent()->GetParent());
   }
 
-  return SVGFEUnstyledLeafFrameBase::AttributeChanged(aNameSpaceID,
-                                                        aAttribute, aModType);
+  return nsFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
 }