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/BlurTest.cpp b/tests/BlurTest.cpp
index 4ecc934..2893a0c 100644
--- a/tests/BlurTest.cpp
+++ b/tests/BlurTest.cpp
@@ -281,8 +281,8 @@
     desc.fHeight = 30;
     desc.fSampleCnt = 0;
 
-    SkAutoTUnref<GrTexture> texture(grContext->createTexture(desc, false, nullptr, 0));
-    SkAutoTUnref<SkGpuDevice> device(new SkGpuDevice  (grContext, texture.get()));
+    sk_sp<GrTexture> texture(grContext->createTexture(desc, false, nullptr, 0));
+    sk_sp<SkGpuDevice> device(new SkGpuDevice(grContext, texture.get()));
     SkCanvas canvas(device.get());
 
     blur_path(&canvas, path, gaussianSigma);