Move SkTypeface to sk_sp.

Committed: https://skia.googlesource.com/skia/+/6296da736fbf40aae881650c239420f64e576c3f
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1933393002

Review-Url: https://codereview.chromium.org/1933393002
diff --git a/bench/CmapBench.cpp b/bench/CmapBench.cpp
index a2fb506..49e89be 100644
--- a/bench/CmapBench.cpp
+++ b/bench/CmapBench.cpp
@@ -77,7 +77,7 @@
             // we're jamming values into utf8, so we must keep it legal utf8
             fText[i] = 'A' + (i & 31);
         }
-        fPaint.setTypeface(SkTypeface::RefDefault())->unref();
+        fPaint.setTypeface(SkTypeface::MakeDefault());
     }
 
 protected: