Update SkBlurImageFilter to sk_sp

include/effects/SkBlurImageFilter.h

Index: include/effects/SkBlurImageFilter.h
diff --git a/include/effects/SkBlurImageFilter.h b/include/effects/SkBlurImageFilter.h
index 682c08f29400f4183cbb0f88029dbe1075cd60cc..607e76de513e4fb8c92bf04921d5d836b275f6cc 100644
--- a/include/effects/SkBlurImageFilter.h
+++ b/include/effects/SkBlurImageFilter.h
@@ -13,12 +13,12 @@
 
 class SK_API SkBlurImageFilter : public SkImageFilter {
 public:
-    static SkImageFilter* Create(SkScalar sigmaX, SkScalar sigmaY, SkImageFilter* input = NULL,
-                                 const CropRect* cropRect = NULL) {
+    static sk_sp<SkImageFilter> Make(SkScalar sigmaX, SkScalar sigmaY, sk_sp<SkImageFilter> input,
+                                     const CropRect* cropRect = nullptr) {
         if (0 == sigmaX && 0 == sigmaY && nullptr == cropRect) {
-            return SkSafeRef(input);
+            return input;
         }
-        return new SkBlurImageFilter(sigmaX, sigmaY, input, cropRect);
+        return sk_sp<SkImageFilter>(new SkBlurImageFilter(sigmaX, sigmaY, input, cropRect));
     }
 
     SkRect computeFastBounds(const SkRect&) const override;
@@ -26,6 +26,13 @@ public:
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurImageFilter)
 
+#ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
+    static SkImageFilter* Create(SkScalar sigmaX, SkScalar sigmaY, SkImageFilter* input = nullptr,
+                                 const CropRect* cropRect = nullptr) {
+        return Make(sigmaX, sigmaY, sk_ref_sp<SkImageFilter>(input), cropRect).release();
+    }
+#endif
+
 protected:
     void flatten(SkWriteBuffer&) const override;
     sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
@@ -35,7 +42,7 @@ protected:
 private:
     SkBlurImageFilter(SkScalar sigmaX,
                       SkScalar sigmaY,
-                      SkImageFilter* input,
+                      sk_sp<SkImageFilter> input,
                       const CropRect* cropRect);
 
     SkSize   fSigma;