--- a/gfx/2d/2D.h
+++ b/gfx/2d/2D.h
@@ -880,17 +880,17 @@ protected:
 
 class DrawTargetCapture;
 
 /** This is the main class used for all the drawing. It is created through the
  * factory and accepts drawing commands. The results of drawing to a target
  * may be used either through a Snapshot or by flushing the target and directly
  * accessing the backing store a DrawTarget was created with.
  */
-class DrawTarget : public RefCounted<DrawTarget>
+class DrawTarget : public external::AtomicRefCounted<DrawTarget>
 {
 public:
   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTarget)
   DrawTarget() : mTransformDirty(false), mPermitSubpixelAA(false) {}
   virtual ~DrawTarget() {}
 
   virtual bool IsValid() const { return true; };
   virtual DrawTargetType GetType() const = 0;