Move SkTypeface to sk_sp.

src/core/SkFont.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFont.h"
 #include "SkTypeface.h"
 #include "SkUtils.h"
 
-static SkTypeface* ref_or_default(SkTypeface* face) {
-    return face ? SkRef(face) : SkTypeface::RefDefault();
-}
-
-SkFont::SkFont(SkTypeface* face, SkScalar size, SkScalar scaleX, SkScalar skewX, MaskType mt,
+SkFont::SkFont(sk_sp<SkTypeface> face, SkScalar size, SkScalar scaleX, SkScalar skewX, MaskType mt,
                uint32_t flags)
-    : fTypeface(ref_or_default(face))
+    : fTypeface(face ? std::move(face) : SkTypeface::MakeDefault())
     , fSize(size)
     , fScaleX(scaleX)
     , fSkewX(skewX)
     , fFlags(flags)
     , fMaskType(SkToU8(mt))
 {
     SkASSERT(size > 0);
     SkASSERT(scaleX > 0);
     SkASSERT(SkScalarIsFinite(skewX));
     SkASSERT(0 == (flags & ~kAllFlags));
 }
 
-SkFont* SkFont::Create(SkTypeface* face, SkScalar size, SkScalar scaleX, SkScalar skewX,
-                       MaskType mt, uint32_t flags) {
+sk_sp<SkFont> SkFont::Make(sk_sp<SkTypeface> face, SkScalar size, SkScalar scaleX, SkScalar skewX,
+                           MaskType mt, uint32_t flags) {
     if (size <= 0 || !SkScalarIsFinite(size)) {
         return nullptr;
     }
     if (scaleX <= 0 || !SkScalarIsFinite(scaleX)) {
         return nullptr;
     }
     if (!SkScalarIsFinite(skewX)) {
         return nullptr;
     }
     flags &= kAllFlags;
-    return new SkFont(face, size, scaleX, skewX, mt, flags);
+    return sk_sp<SkFont>(new SkFont(std::move(face), size, scaleX, skewX, mt, flags));
 }
 
-SkFont* SkFont::Create(SkTypeface* face, SkScalar size, MaskType mt, uint32_t flags) {
-    return SkFont::Create(face, size, 1, 0, mt, flags);
+sk_sp<SkFont> SkFont::Make(sk_sp<SkTypeface> face, SkScalar size, MaskType mt, uint32_t flags) {
+    return SkFont::Make(std::move(face), size, 1, 0, mt, flags);
 }
 
-SkFont* SkFont::cloneWithSize(SkScalar newSize) const {
-    return SkFont::Create(this->getTypeface(), newSize, this->getScaleX(), this->getSkewX(),
-                          this->getMaskType(), this->getFlags());
+sk_sp<SkFont> SkFont::makeWithSize(SkScalar newSize) const {
+    return SkFont::Make(sk_ref_sp(this->getTypeface()), newSize, this->getScaleX(),
+                        this->getSkewX(), this->getMaskType(), this->getFlags());
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-SkFont::~SkFont() {
-    SkSafeUnref(fTypeface);
-}
-
 int SkFont::textToGlyphs(const void* text, size_t byteLength, SkTextEncoding encoding,
                          uint16_t glyphs[], int maxGlyphCount) const {
     if (0 == byteLength) {
         return 0;
     }
 
     SkASSERT(text);
 
     int count = 0;  // fix uninitialized warning (even though the switch is complete!)
 
@@ skipping 40 matching lines @@
 
 SkScalar SkFont::measureText(const void* text, size_t byteLength, SkTextEncoding encoding) const {
     // TODO: need access to the cache
     return -1;
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 #include "SkPaint.h"
 
-SkFont* SkFont::Testing_CreateFromPaint(const SkPaint& paint) {
+sk_sp<SkFont> SkFont::Testing_CreateFromPaint(const SkPaint& paint) {
     uint32_t flags = 0;
     if (paint.isVerticalText()) {
         flags |= kVertical_Flag;
     }
     if (paint.isEmbeddedBitmapText()) {
         flags |= kEmbeddedBitmaps_Flag;
     }
     if (paint.getFlags() & SkPaint::kGenA8FromLCD_Flag) {
         flags |= kGenA8FromLCD_Flag;
     }
@@ skipping 11 matching lines @@
         // this is our default
     } else {
         flags |= kUseNonlinearMetrics_Flag;
     }
 
     MaskType maskType = SkFont::kBW_MaskType;
     if (paint.isAntiAlias()) {
         maskType = paint.isLCDRenderText() ? kLCD_MaskType : kA8_MaskType;
     }
 
-    return Create(paint.getTypeface(),
-                  paint.getTextSize(), paint.getTextScaleX(), paint.getTextSkewX(),
-                  maskType, flags);
+    return Make(sk_ref_sp(paint.getTypeface()), paint.getTextSize(), paint.getTextScaleX(),
+                paint.getTextSkewX(), maskType, flags);
 }