tests: s/SkAutoTUnref/sk_sp/

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4394

Change-Id: I088b3c6e2adff07abed1e8a50091cc0ec4a4109c
Reviewed-on: https://skia-review.googlesource.com/4394
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/tests/TextBlobCacheTest.cpp b/tests/TextBlobCacheTest.cpp
index 964a64f..995328d 100644
--- a/tests/TextBlobCacheTest.cpp
+++ b/tests/TextBlobCacheTest.cpp
@@ -66,7 +66,7 @@
 
     SkCanvas* canvas = surface->getCanvas();
 
-    SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
+    sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault());
 
     int count = SkMin32(fm->countFamilies(), maxFamilies);
 
@@ -85,7 +85,7 @@
 
         SkString familyName;
         fm->getFamilyName(i, &familyName);
-        SkAutoTUnref<SkFontStyleSet> set(fm->createStyleSet(i));
+        sk_sp<SkFontStyleSet> set(fm->createStyleSet(i));
         for (int j = 0; j < set->count(); ++j) {
             SkFontStyle fs;
             set->getStyle(j, &fs, nullptr);