One allocation for an SkData which makes a copy.

include/core/SkRefCnt.h

Index: include/core/SkRefCnt.h
===================================================================
--- include/core/SkRefCnt.h	(revision 9702)
+++ include/core/SkRefCnt.h	(working copy)
@@ -71,16 +71,6 @@
         SkASSERT(fRefCnt > 0);
     }
 
-    /**
-     *  Alias for ref(), for compatibility with scoped_refptr.
-     */
-    void AddRef() { this->ref(); }
-
-    /**
-     *  Alias for unref(), for compatibility with scoped_refptr.
-     */
-    void Release() { this->unref(); }
-
 protected:
     /**
      *  Allow subclasses to call this if they've overridden internal_dispose
@@ -104,9 +94,10 @@
         SkDELETE(this);
     }
 
+    // The following friends are those which override internal_dispose()
+    // and conditionally call SkRefCnt::internal_dispose().
+    friend class GrTexture;
     friend class SkWeakRefCnt;
-    friend class GrTexture;     // to allow GrTexture's internal_dispose to
-                                // call SkRefCnt's & directly set fRefCnt (to 1)
 
     mutable int32_t fRefCnt;