Update SkAlphaThresholdFilter to sk_sp

samplecode/SampleFilterFuzz.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 "SampleCode.h"
 #include "Sk1DPathEffect.h"
 #include "Sk2DPathEffect.h"
 #include "SkAlphaThresholdFilter.h"
@@ skipping 537 matching lines @@
         return filter;
     }
 
     enum { ALPHA_THRESHOLD, MERGE, COLOR, LUT3D, BLUR, MAGNIFIER,
            DOWN_SAMPLE, XFERMODE, OFFSET, MATRIX, MATRIX_CONVOLUTION, COMPOSE,
            DISTANT_LIGHT, POINT_LIGHT, SPOT_LIGHT, NOISE, DROP_SHADOW,
            MORPHOLOGY, BITMAP, DISPLACE, TILE, PICTURE, PAINT, NUM_FILTERS };
 
     switch (R(NUM_FILTERS)) {
     case ALPHA_THRESHOLD:
-        filter = sk_sp<SkImageFilter>(SkAlphaThresholdFilter::Create(make_region(),
-                                                                     make_scalar(),
-                                                                     make_scalar()));
+        filter = SkAlphaThresholdFilter::Make(make_region(),
+                                              make_scalar(),
+                                              make_scalar(),
+                                              nullptr);
         break;
     case MERGE:
         filter = SkMergeImageFilter::Make(make_image_filter(),
                                           make_image_filter(),
                                           make_xfermode());
         break;
     case COLOR: {
         sk_sp<SkColorFilter> cf(make_color_filter());
         sk_sp<SkImageFilter> subFilter(make_image_filter());
         filter = cf ? sk_sp<SkImageFilter>(SkColorFilterImageFilter::Create(cf.get(),
@@ skipping 295 matching lines @@
     }
 
 private:
     typedef SkView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new ImageFilterFuzzView; }
 static SkViewRegister reg(MyFactory);