Move SkTypeface to sk_sp.

gm/colortype.cpp

Index: gm/colortype.cpp
diff --git a/gm/colortype.cpp b/gm/colortype.cpp
index c9314de2a456479eecd88b92fcd3cec6c41ac9e1..dd0e7b8699accf84666ff7cfd7c192ff02dd4d9e 100644
--- a/gm/colortype.cpp
+++ b/gm/colortype.cpp
@@ -12,13 +12,7 @@
 
 class ColorTypeGM : public skiagm::GM {
 public:
-    ColorTypeGM()
-        : fColorType(nullptr) {
-    }
-
-    virtual ~ColorTypeGM() {
-        SkSafeUnref(fColorType);
-    }
+    ColorTypeGM() {}
 
 protected:
     void onOnceBeforeDraw() override {
@@ -33,12 +27,11 @@ protected:
         paint.setShader(SkGradientShader::MakeSweep(0, 0, colors, nullptr, SK_ARRAY_COUNT(colors),
                                                     0, &local));
 
-        SkTypeface* orig = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kBold);
+        auto orig = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kBold);
         if (nullptr == orig) {
-            orig = SkTypeface::RefDefault();
+            orig = SkTypeface::MakeDefault();
         }
-        fColorType = new SkGTypeface(orig, paint);
-        orig->unref();
+        fColorType = sk_make_sp<SkGTypeface>(std::move(orig), paint);
     }
 
     SkString onShortName() override {
@@ -62,7 +55,7 @@ protected:
     }
 
 private:
-    SkTypeface* fColorType;
+    sk_sp<SkTypeface> fColorType;
 
     typedef skiagm::GM INHERITED;
 };