sk_make_sp<T>()

because
    auto atm = sk_make_sp<SkAdvancedTypefaceMetrics>();
is better than
    sk_sp<SkAdvancedTypefaceMetrics> atm(new SkAdvancedTypefaceMetrics);

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1753973002

Review URL: https://codereview.chromium.org/1753973002
diff --git a/tests/RefCntTest.cpp b/tests/RefCntTest.cpp
index e3f41bd..e9d582d 100644
--- a/tests/RefCntTest.cpp
+++ b/tests/RefCntTest.cpp
@@ -120,7 +120,7 @@
 };
 
 static sk_sp<Effect> Create() {
-    return sk_sp<Effect>(new Effect);
+    return sk_make_sp<Effect>();
 }
 
 class Paint {