Use sk_sp text blob APIs

gm/largeglyphblur.cpp

Index: gm/largeglyphblur.cpp
diff --git a/gm/largeglyphblur.cpp b/gm/largeglyphblur.cpp
index 235c7cc5adb98e5eaa2d7cae9dbb37ce1bd5816f..19d390be541b5a9ec7757d04a7e8d7474699dade 100644
--- a/gm/largeglyphblur.cpp
+++ b/gm/largeglyphblur.cpp
@@ -32,9 +32,9 @@ DEF_SIMPLE_GM(largeglyphblur, canvas, 1920, 600) {
 
         sk_tool_utils::add_to_text_blob(&builder, text, paint, 0, 0);
 
-        SkAutoTUnref<const SkTextBlob> blob(builder.build());
-        canvas->drawTextBlob(blob.get(), 10, 200, blurPaint);
-        canvas->drawTextBlob(blob.get(), 10, 200, paint);
+        sk_sp<SkTextBlob> blob(builder.make());
+        canvas->drawTextBlob(blob, 10, 200, blurPaint);
+        canvas->drawTextBlob(blob, 10, 200, paint);
 
         size_t len = strlen(text);
         canvas->drawText(text, len, 10, 500, blurPaint);