Move SkTypeface to sk_sp.

src/fonts/SkRandomScalerContext.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRandomScalerContext.h"
 #include "SkGlyph.h"
 #include "SkPath.h"
@@ skipping 172 matching lines @@
 }
 
 void SkRandomScalerContext::generateFontMetrics(SkPaint::FontMetrics* metrics) {
     fProxy->getFontMetrics(metrics);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "SkTypefaceCache.h"
 
-SkRandomTypeface::SkRandomTypeface(SkTypeface* proxy, const SkPaint& paint, bool fakeIt)
+SkRandomTypeface::SkRandomTypeface(sk_sp<SkTypeface> proxy, const SkPaint& paint, bool fakeIt)
     : SkTypeface(proxy->fontStyle(), SkTypefaceCache::NewFontID(), false)
-    , fProxy(SkRef(proxy))
+    , fProxy(std::move(proxy))
     , fPaint(paint)
     , fFakeIt(fakeIt) {}
 
-SkRandomTypeface::~SkRandomTypeface() {
-    fProxy->unref();
-}
-
 SkScalerContext* SkRandomTypeface::onCreateScalerContext(const SkScalerContextEffects& effects,
                                                          const SkDescriptor* desc) const {
     return new SkRandomScalerContext(const_cast<SkRandomTypeface*>(this), effects, desc, fFakeIt);
 }
 
 void SkRandomTypeface::onFilterRec(SkScalerContextRec* rec) const {
     fProxy->filterRec(rec);
     rec->setHinting(SkPaint::kNo_Hinting);
     rec->fMaskFormat = SkMask::kARGB32_Format;
 }
@@ skipping 37 matching lines @@
 
 int SkRandomTypeface::onGetTableTags(SkFontTableTag tags[]) const {
     return fProxy->getTableTags(tags);
 }
 
 size_t SkRandomTypeface::onGetTableData(SkFontTableTag tag, size_t offset,
                                     size_t length, void* data) const {
     return fProxy->getTableData(tag, offset, length, data);
 }