switch maskfilters to sk_sp

gm/drawbitmaprect.cpp

 /*
  * Copyright 2011 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 "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 193 matching lines @@
             // test the following code path:
             // SkGpuDevice::drawPath() -> SkGpuDevice::drawWithMaskFilter()
             SkIRect srcRect;
             SkPaint paint;
             SkBitmap bm;
 
             bm = make_chessbm(5, 5);
             paint.setFilterQuality(kLow_SkFilterQuality);
 
             srcRect.setXYWH(1, 1, 3, 3);
-            SkMaskFilter* mf = SkBlurMaskFilter::Create(
+            paint.setMaskFilter(SkBlurMaskFilter::Make(
                 kNormal_SkBlurStyle,
                 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
                 SkBlurMaskFilter::kHighQuality_BlurFlag |
-                SkBlurMaskFilter::kIgnoreTransform_BlurFlag);
-            paint.setMaskFilter(mf)->unref();
+                SkBlurMaskFilter::kIgnoreTransform_BlurFlag));
             canvas->drawBitmapRect(bm, srcRect, dstRect, &paint);
         }
     }
 
 private:
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM( return new DrawBitmapRectGM(canvasproc, nullptr); )
 DEF_GM( return new DrawBitmapRectGM(imageproc, "-imagerect"); )