Update SkMorphology ImageFilters to sk_sp

TBR=reed@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1860573002

Review URL: https://codereview.chromium.org/1860573002
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index bf8811b..ea714e5 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -30,9 +30,9 @@
 
 SkMorphologyImageFilter::SkMorphologyImageFilter(int radiusX,
                                                  int radiusY,
-                                                 SkImageFilter* input,
+                                                 sk_sp<SkImageFilter> input,
                                                  const CropRect* cropRect)
-    : INHERITED(1, &input, cropRect)
+    : INHERITED(&input, 1, cropRect)
     , fRadius(SkISize::Make(radiusX, radiusY)) {
 }
 
@@ -76,16 +76,14 @@
     SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1);
     const int width = buffer.readInt();
     const int height = buffer.readInt();
-    return sk_sp<SkFlattenable>(Create(width, height, common.getInput(0).get(),
-                                       &common.cropRect()));
+    return Make(width, height, common.getInput(0), &common.cropRect());
 }
 
 sk_sp<SkFlattenable> SkDilateImageFilter::CreateProc(SkReadBuffer& buffer) {
     SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1);
     const int width = buffer.readInt();
     const int height = buffer.readInt();
-    return sk_sp<SkFlattenable>(Create(width, height, common.getInput(0).get(),
-                                       &common.cropRect()));
+    return Make(width, height, common.getInput(0), &common.cropRect());
 }
 
 #ifndef SK_IGNORE_TO_STRING