SkPDF: use sk_ref_sp

src/pdf/SkPDFFont.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "SkData.h"
@@ skipping 1185 matching lines @@
                                SkPDFDict* relatedFontDescriptor)
     : SkPDFFont(info, typeface, relatedFontDescriptor) {
     this->populate(glyphID);
 }
 
 SkPDFType1Font::~SkPDFType1Font() {}
 
 bool SkPDFType1Font::addFontDescriptor(int16_t defaultWidth) {
     if (SkPDFDict* descriptor = getFontDescriptor()) {
         this->insertObjRef("FontDescriptor",
-                           sk_sp<SkPDFDict>(SkRef(descriptor)));
+                           sk_ref_sp(descriptor));
         return true;
     }
 
     auto descriptor = sk_make_sp<SkPDFDict>("FontDescriptor");
     setFontDescriptor(descriptor.get());
 
     int ttcIndex;
     size_t header SK_INIT_TO_AVOID_WARNING;
     size_t data SK_INIT_TO_AVOID_WARNING;
     size_t trailer SK_INIT_TO_AVOID_WARNING;
@@ skipping 210 matching lines @@
     sk_sp<const SkAdvancedTypefaceMetrics> fontMetrics(
             face->getAdvancedTypefaceMetrics(
                     SkTypeface::kNo_PerGlyphInfo, nullptr, 0));
     if (fontMetrics) {
         canEmbed = !SkToBool(
                 fontMetrics->fFlags &
                 SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag);
     }
     return *canon->fCanEmbedTypeface.set(id, canEmbed);
 }