Update SkMorphology ImageFilters to sk_sp

gm/localmatriximagefilter.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 "SkCanvas.h"
 #include "SkBlurImageFilter.h"
@@ skipping 10 matching lines @@
         surface = SkSurface::MakeRaster(info);
     }
 
     SkPaint paint;
     paint.setAntiAlias(true);
     paint.setColor(SK_ColorRED);
     surface->getCanvas()->drawCircle(50, 50, 50, paint);
     return surface->makeImageSnapshot();
 }
 
-typedef SkImageFilter* (*ImageFilterFactory)();
+typedef sk_sp<SkImageFilter> (*ImageFilterFactory)();
 
 // +[]{...} did not work on windows (VS)
 // (ImageFilterFactory)[]{...} did not work on linux (gcc)
 // hence this cast function
 template <typename T> ImageFilterFactory IFCCast(T arg) { return arg; }
 
 // Show the effect of localmatriximagefilter with various matrices, on various filters
 class LocalMatrixImageFilterGM : public skiagm::GM {
 public:
     LocalMatrixImageFilterGM() {}
@@ skipping 16 matching lines @@
 
         paint.setStyle(SkPaint::kFill_Style);
         paint.setImageFilter(filter);
         canvas->drawImage(image, 0, 0, &paint);
     }
 
     void onDraw(SkCanvas* canvas) override {
         sk_sp<SkImage> image0(make_image(canvas));
 
         const ImageFilterFactory factories[] = {
-            IFCCast([]{ return SkBlurImageFilter::Make(8, 8, nullptr).release(); }),
-            IFCCast([]{ return SkDilateImageFilter::Create(8, 8); }),
-            IFCCast([]{ return SkErodeImageFilter::Create(8, 8); }),
-            IFCCast([]{ return SkOffsetImageFilter::Make(8, 8, nullptr).release(); }),
+            IFCCast([]{ return SkBlurImageFilter::Make(8, 8, nullptr); }),
+            IFCCast([]{ return SkDilateImageFilter::Make(8, 8, nullptr); }),
+            IFCCast([]{ return SkErodeImageFilter::Make(8, 8, nullptr); }),
+            IFCCast([]{ return SkOffsetImageFilter::Make(8, 8, nullptr); }),
         };
 
         const SkMatrix matrices[] = {
             SkMatrix::MakeScale(SK_ScalarHalf, SK_ScalarHalf),
             SkMatrix::MakeScale(2, 2),
             SkMatrix::MakeTrans(10, 10)
         };
 
         const SkScalar spacer = image0->width() * 3.0f / 2;
 
@@ skipping 10 matching lines @@
             }
             canvas->restore();
             canvas->translate(0, spacer);
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 DEF_GM( return new LocalMatrixImageFilterGM; )