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/EGLImageTest.cpp b/tests/EGLImageTest.cpp
index 3d2ee05..6301c51 100644
--- a/tests/EGLImageTest.cpp
+++ b/tests/EGLImageTest.cpp
@@ -75,10 +75,9 @@
     copyDesc.fWidth = externalTexture->width();
     copyDesc.fHeight = externalTexture->height();
     copyDesc.fFlags = kRenderTarget_GrSurfaceFlag;
-    SkAutoTUnref<GrTexture> copy(context->textureProvider()->createTexture(
-            copyDesc, SkBudgeted::kYes));
-    context->copySurface(copy, externalTexture);
-    test_read_pixels(reporter, context, copy, expectedPixelValues);
+    sk_sp<GrTexture> copy(context->textureProvider()->createTexture(copyDesc, SkBudgeted::kYes));
+    context->copySurface(copy.get(), externalTexture);
+    test_read_pixels(reporter, context, copy.get(), expectedPixelValues);
 }
 
 DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(EGLImageTest, reporter, ctxInfo) {