Use sk_sp text blob APIs

bench/TextBlobBench.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Benchmark.h"
 #include "Resources.h"
 #include "SkCanvas.h"
@@ skipping 26 matching lines @@
         glyphs.append(paint.textToGlyphs(text, len, nullptr));
         paint.textToGlyphs(text, len, glyphs.begin());
 
         SkTextBlobBuilder builder;
 
         paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
         const SkTextBlobBuilder::RunBuffer& run = builder.allocRun(paint, glyphs.count(), 10, 10,
                                                                    nullptr);
         memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t));
 
-        fBlob.reset(builder.build());
+        fBlob = builder.make();
     }
 
     const char* onGetName() override {
         return "TextBlobBench";
     }
 
     void onDraw(int loops, SkCanvas* canvas) override {
         SkPaint paint;
 
         // To ensure maximum caching, we just redraw the blob at the same place everytime
         for (int i = 0; i < loops; i++) {
             canvas->drawTextBlob(fBlob, 0, 0, paint);
         }
     }
 
 private:
 
-    SkAutoTUnref<const SkTextBlob>  fBlob;
-    SkTDArray<uint16_t>             fGlyphs;
-    sk_sp<SkTypeface>               fTypeface;
+    sk_sp<SkTextBlob>   fBlob;
+    SkTDArray<uint16_t> fGlyphs;
+    sk_sp<SkTypeface>   fTypeface;
 
     typedef Benchmark INHERITED;
 };
 
 DEF_BENCH( return new TextBlobBench(); )