Update MagnifierImageFilter to sk_sp

include/effects/SkMagnifierImageFilter.h

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkMagnifierImageFilter_DEFINED
 #define SkMagnifierImageFilter_DEFINED
 
 #include "SkRect.h"
 #include "SkImageFilter.h"
 
 class SK_API SkMagnifierImageFilter : public SkImageFilter {
 public:
-    static SkImageFilter* Create(const SkRect& src, SkScalar inset, SkImageFilter* input = NULL);
+    static sk_sp<SkImageFilter> Make(const SkRect& src, SkScalar inset, sk_sp<SkImageFilter> input);
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMagnifierImageFilter)
 
+#ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
+    static SkImageFilter* Create(const SkRect& src, SkScalar inset,
+                                 SkImageFilter* input = nullptr) {
+        return Make(src, inset, sk_ref_sp<SkImageFilter>(input)).release();
+    }
+#endif
+
 protected:
-    SkMagnifierImageFilter(const SkRect& srcRect, SkScalar inset, SkImageFilter* input);
+    SkMagnifierImageFilter(const SkRect& srcRect, SkScalar inset, sk_sp<SkImageFilter> input);
     void flatten(SkWriteBuffer&) const override;
 
     bool onFilterImageDeprecated(Proxy*, const SkBitmap& src, const Context&,
                                  SkBitmap* result, SkIPoint* offset) const override;
 #if SK_SUPPORT_GPU
     bool asFragmentProcessor(GrFragmentProcessor**, GrTexture*, const SkMatrix&,
                              const SkIRect& bounds) const override;
 #endif
 
 private:
     SkRect fSrcRect;
     SkScalar fInset;
     typedef SkImageFilter INHERITED;
 };
 
 #endif