Use sk_sp text blob APIs

gm/textbloblooper.cpp

 /*
  * Copyright 2013 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 "Sk2DPathEffect.h"
@@ skipping 130 matching lines @@
 
         // LCD
         SkPaint paint;
         paint.setTextSize(32);
         const char* text = "The quick brown fox jumps over the lazy dog";
         paint.setSubpixelText(true);
         paint.setLCDRenderText(true);
         paint.setAntiAlias(true);
         sk_tool_utils::set_portable_typeface(&paint);
         add_to_text_blob(&builder, text, paint, 0, 0);
-        fBlob.reset(builder.build());
+        fBlob = builder.make();
 
         // create a looper which sandwhiches an effect in two normal draws
         LooperSettings looperSandwhich[] = {
            { SkXfermode::kSrc_Mode, SK_ColorMAGENTA, SkPaint::kFill_Style, 0, 0, 0, false },
            { SkXfermode::kSrcOver_Mode, 0x88000000, SkPaint::kFill_Style, 0, 10.f, 0, true },
            { SkXfermode::kSrcOver_Mode, 0x50FF00FF, SkPaint::kFill_Style, 0, 20.f, 0, false },
         };
 
         LooperSettings compound[] = {
             { SkXfermode::kSrc_Mode, SK_ColorWHITE, SkPaint::kStroke_Style, 1.f * 3/4, 0, 0, false },
@@ skipping 76 matching lines @@
             paint.setLooper(fLoopers[looper]);
             canvas->save();
             canvas->translate(0, SkIntToScalar(y));
             canvas->drawTextBlob(fBlob, 0, 0, paint);
             canvas->restore();
             y += SkScalarFloorToInt(bounds.height());
         }
     }
 
 private:
-    SkAutoTUnref<const SkTextBlob> fBlob;
+    sk_sp<SkTextBlob> fBlob;
     SkTArray<sk_sp<SkDrawLooper>, true> fLoopers;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new TextBlobLooperGM;)
 }