switch maskfilters to sk_sp

gm/textblobmixedsizes.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 "gm.h"
 
 #include "Resources.h"
@@ skipping 117 matching lines @@
         if (!fUseDFT) {
             paint.setColor(sk_tool_utils::color_to_565(SK_ColorWHITE));
         }
         paint.setAntiAlias(false);
 
         static const SkScalar kSigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(8));
 
         // setup blur paint
         SkPaint blurPaint(paint);
         blurPaint.setColor(sk_tool_utils::color_to_565(SK_ColorBLACK));
-        SkAutoTUnref<SkMaskFilter> mf(SkBlurMaskFilter::Create(kNormal_SkBlurStyle, kSigma));
-        blurPaint.setMaskFilter(mf);
-
+        blurPaint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, kSigma));
+        
         for (int i = 0; i < 4; i++) {
             canvas->save();
             switch (i % 2) {
                 case 0:
                     canvas->rotate(random.nextF() * 45.f);
                     break;
                 case 1:
                     canvas->rotate(-random.nextF() * 45.f);
                     break;
             }
@@ skipping 35 matching lines @@
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new TextBlobMixedSizes(false); )
 #if SK_SUPPORT_GPU
 DEF_GM( return new TextBlobMixedSizes(true); )
 #endif
 }