Outline SkImageFilter Make methods

include/effects/SkMorphologyImageFilter.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 SkMorphologyImageFilter_DEFINED
 #define SkMorphologyImageFilter_DEFINED
 
@@ skipping 39 matching lines @@
     SkISize  fRadius;
 
     typedef SkImageFilter INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 class SK_API SkDilateImageFilter : public SkMorphologyImageFilter {
 public:
     static sk_sp<SkImageFilter> Make(int radiusX, int radiusY,
                                      sk_sp<SkImageFilter> input,
-                                     const CropRect* cropRect = nullptr) {
-        if (radiusX < 0 || radiusY < 0) {
-            return nullptr;
-        }
-        return sk_sp<SkImageFilter>(new SkDilateImageFilter(radiusX, radiusY,
-                                                            std::move(input),
-                                                            cropRect));
-    }
+                                     const CropRect* cropRect = nullptr);
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDilateImageFilter)
 
 #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
     static SkImageFilter* Create(int radiusX, int radiusY,
                                  SkImageFilter* input = nullptr,
                                  const CropRect* cropRect = nullptr) {
         return Make(radiusX, radiusY,
                     sk_ref_sp<SkImageFilter>(input),
@@ skipping 11 matching lines @@
         : INHERITED(radiusX, radiusY, input, cropRect) {}
 
     typedef SkMorphologyImageFilter INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 class SK_API SkErodeImageFilter : public SkMorphologyImageFilter {
 public:
     static sk_sp<SkImageFilter> Make(int radiusX, int radiusY,
                                      sk_sp<SkImageFilter> input,
-                                     const CropRect* cropRect = nullptr) {
-        if (radiusX < 0 || radiusY < 0) {
-            return nullptr;
-        }
-        return sk_sp<SkImageFilter>(new SkErodeImageFilter(radiusX, radiusY,
-                                                           std::move(input),
-                                                           cropRect));
-    }
+                                     const CropRect* cropRect = nullptr);
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkErodeImageFilter)
 
 #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
     static SkImageFilter* Create(int radiusX, int radiusY,
                                  SkImageFilter* input = nullptr,
                                  const CropRect* cropRect = nullptr) {
         return Make(radiusX, radiusY,
                     sk_ref_sp<SkImageFilter>(input),
                     cropRect).release();
     }
 #endif
 
 protected:
     Op op() const override { return kErode_Op; }
 
 private:
     SkErodeImageFilter(int radiusX, int radiusY,
                        sk_sp<SkImageFilter> input, const CropRect* cropRect)
         : INHERITED(radiusX, radiusY, input, cropRect) {}
 
     typedef SkMorphologyImageFilter INHERITED;
 };
 
 #endif