Convert SkAutoTUnref<SkData> to sk_sp<SkData>.

bench/EncoderBench.cpp

Index: bench/EncoderBench.cpp
diff --git a/bench/EncoderBench.cpp b/bench/EncoderBench.cpp
index 8a82a7cf0612553a4ea4bccd5f0100f5f86ad643..d7ddfbc602b00cbd8059a012ba2d3b03710fff98 100644
--- a/bench/EncoderBench.cpp
+++ b/bench/EncoderBench.cpp
@@ -54,7 +54,7 @@ public:
 
     void onDraw(int loops, SkCanvas*) override {
         for (int i = 0; i < loops; i++) {
-            SkAutoTUnref<SkData> data(SkImageEncoder::EncodeData(fBitmap, fType, fQuality));
+            sk_sp<SkData> data(SkImageEncoder::EncodeData(fBitmap, fType, fQuality));
             SkASSERT(data);
         }
     }