Move SkTypeface to sk_sp.

include/ports/SkFontConfigInterface.h

Index: include/ports/SkFontConfigInterface.h
diff --git a/include/ports/SkFontConfigInterface.h b/include/ports/SkFontConfigInterface.h
index 9f98e356d23c5c82ac62f4975bae3347fede1d85..dfa5bd0b1350b16f23d7e583d73c6d6a907001b9 100644
--- a/include/ports/SkFontConfigInterface.h
+++ b/include/ports/SkFontConfigInterface.h
@@ -97,12 +97,15 @@ public:
      *
      *  The default implementation simply returns a new typeface built using data obtained from
      *  openStream(), but derived classes may implement more complex caching schemes.
-     *
-     *  Callers are responsible for unref-ing the result.
      */
+    virtual sk_sp<SkTypeface> makeTypeface(const FontIdentity& identity) {
+        return SkTypeface::MakeFromStream(this->openStream(identity), identity.fTTCIndex);
+    }
+#ifdef SK_SUPPORT_LEGACY_TYPEFACE_PTR
     virtual SkTypeface* createTypeface(const FontIdentity& identity) {
-        return SkTypeface::CreateFromStream(this->openStream(identity), identity.fTTCIndex);
+        return this->makeTypeface(identity).release();
     }
+#endif
 
     /**
      *  Return a singleton instance of a direct subclass that calls into