Revert of Move SkTypeface to sk_sp.

src/pdf/SkPDFFont.cpp

Index: src/pdf/SkPDFFont.cpp
diff --git a/src/pdf/SkPDFFont.cpp b/src/pdf/SkPDFFont.cpp
index 97be32c41da531d3ca807413ea7780bc66612576..7a66bcd1e920eebc877b9ac92e7f7b773bb94275 100644
--- a/src/pdf/SkPDFFont.cpp
+++ b/src/pdf/SkPDFFont.cpp
@@ -1327,7 +1327,7 @@
 
 bool SkPDFType3Font::populate(uint16_t glyphID) {
     SkPaint paint;
-    paint.setTypeface(sk_ref_sp(this->typeface()));
+    paint.setTypeface(typeface());
     paint.setTextSize(1000);
     const SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
     SkAutoGlyphCache autoCache(paint, &props, nullptr);