bench, samples, etc: s/SkAutoTUnref/sk_sp/

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4437

Change-Id: Ice071684ac8a99e4bb405b4b9be8e8f42c7bac42
Reviewed-on: https://skia-review.googlesource.com/4437
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/example/SkiaSDLExample.cpp b/example/SkiaSDLExample.cpp
index 0072f0f..3aa42b3 100644
--- a/example/SkiaSDLExample.cpp
+++ b/example/SkiaSDLExample.cpp
@@ -183,15 +183,15 @@
     glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 
     // setup GrContext
-    SkAutoTUnref<const GrGLInterface> interface(GrGLCreateNativeInterface());
+    sk_sp<const GrGLInterface> interface(GrGLCreateNativeInterface());
 
     // To use NVPR, comment this out
     interface.reset(GrGLInterfaceRemoveNVPR(interface));
     SkASSERT(interface);
 
     // setup contexts
-    SkAutoTUnref<GrContext> grContext(GrContext::Create(kOpenGL_GrBackend,
-                                                        (GrBackendContext)interface.get()));
+    sk_sp<GrContext> grContext(GrContext::Create(kOpenGL_GrBackend,
+                                                 (GrBackendContext)interface.get()));
     SkASSERT(grContext);
 
     // Wrap the frame buffer object attached to the screen in a Skia render target so Skia can