Use sk_sp text blob APIs

gm/textblobblockreordering.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 
 #include "SkCanvas.h"
@@ skipping 17 matching lines @@
         const char* text = "AB";
         sk_tool_utils::set_portable_typeface(&paint);
 
         SkRect bounds;
         paint.measureText(text, strlen(text), &bounds);
 
         SkScalar yOffset = bounds.height();
         sk_tool_utils::add_to_text_blob(&builder, text, paint, 0, yOffset - 30);
 
         // build
-        fBlob.reset(builder.build());
+        fBlob = builder.make();
     }
 
     SkString onShortName() override {
         return SkString("textblobblockreordering");
     }
 
     SkISize onISize() override {
         return SkISize::Make(kWidth, kHeight);
     }
 
@@ skipping 21 matching lines @@
         canvas->drawRect(bounds, redPaint);
         SkPaint srcInPaint(paint);
         srcInPaint.setXfermodeMode(SkXfermode::kSrcIn_Mode);
         canvas->drawTextBlob(fBlob, 0, 0, srcInPaint);
 
         canvas->translate(SkIntToScalar(xDelta), SkIntToScalar(yDelta));
         canvas->drawTextBlob(fBlob, 0, 0, paint);
     }
 
 private:
-    SkAutoTUnref<const SkTextBlob> fBlob;
+    sk_sp<SkTextBlob> fBlob;
 
     static constexpr int kWidth = 275;
     static constexpr int kHeight = 200;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new TextBlobBlockReordering;)
 }