Move SkTypeface to sk_sp.

src/core/SkTypefacePriv.h

Index: src/core/SkTypefacePriv.h
diff --git a/src/core/SkTypefacePriv.h b/src/core/SkTypefacePriv.h
index dc993d08902ebfabf005bea2a9d3666fd222a4e5..f8d7e63efd97474093bea55566d1d802080eb54d 100644
--- a/src/core/SkTypefacePriv.h
+++ b/src/core/SkTypefacePriv.h
@@ -16,23 +16,23 @@
  *  If the parameter is non-null, it will be ref'd and returned, otherwise
  *  it will be the default typeface.
  */
-static inline SkTypeface* ref_or_default(SkTypeface* face) {
-    return face ? SkRef(face) : SkTypeface::RefDefault();
+static inline sk_sp<SkTypeface> ref_or_default(SkTypeface* face) {
+    return face ? sk_ref_sp(face) : SkTypeface::MakeDefault();
 }
 
 /**
  *  Always resolves to a non-null typeface, either the value passed to its
  *  constructor, or the default typeface if null was passed.
  */
-class SkAutoResolveDefaultTypeface : public SkAutoTUnref<SkTypeface> {
+class SkAutoResolveDefaultTypeface : public sk_sp<SkTypeface> {
 public:
-    SkAutoResolveDefaultTypeface() : INHERITED(SkTypeface::RefDefault()) {}
+    SkAutoResolveDefaultTypeface() : INHERITED(SkTypeface::MakeDefault()) {}
 
     SkAutoResolveDefaultTypeface(SkTypeface* face)
         : INHERITED(ref_or_default(face)) {}
 
 private:
-    typedef SkAutoTUnref<SkTypeface> INHERITED;
+    typedef sk_sp<SkTypeface> INHERITED;
 };
 
 #endif