Update SkMorphology ImageFilters to sk_sp

gm/morphology.cpp

 /*
  * Copyright 2012 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 "SkMorphologyImageFilter.h"
 
@@ skipping 52 matching lines @@
             { 140, 140,   2,   2 },
             {  24,  24,  25,  25 },
         };
         SkPaint paint;
         SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(25, 20, 100, 80));
 
         for (unsigned j = 0; j < 4; ++j) {
             for (unsigned i = 0; i < SK_ARRAY_COUNT(samples); ++i) {
                 const SkImageFilter::CropRect* cr = j & 0x02 ? &cropRect : nullptr;
                 if (j & 0x01) {
-                    paint.setImageFilter(SkErodeImageFilter::Create(
-                        samples[i].fRadiusX,
-                        samples[i].fRadiusY,
-                        nullptr,
-                        cr))->unref();
+                    paint.setImageFilter(SkErodeImageFilter::Make(samples[i].fRadiusX,
+                                                                  samples[i].fRadiusY,
+                                                                  nullptr,
+                                                                  cr));
                 } else {
-                    paint.setImageFilter(SkDilateImageFilter::Create(
-                        samples[i].fRadiusX,
-                        samples[i].fRadiusY,
-                        nullptr,
-                        cr))->unref();
+                    paint.setImageFilter(SkDilateImageFilter::Make(samples[i].fRadiusX,
+                                                                   samples[i].fRadiusY,
+                                                                   nullptr,
+                                                                   cr));
                 }
                 this->drawClippedBitmap(canvas, paint, i * 140, j * 140);
             }
         }
     }
 
 private:
     SkBitmap fBitmap;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new MorphologyGM;)
 
 }