Outline SkImageFilter Make methods

include/effects/SkPaintImageFilter.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPaintImageFilter_DEFINED
 #define SkPaintImageFilter_DEFINED
 
 #include "SkImageFilter.h"
 #include "SkPaint.h"
 
 class SK_API SkPaintImageFilter : public SkImageFilter {
 public:
     /** Create a new image filter which fills the given rectangle using the
      *  given paint. If no rectangle is specified, an output is produced with
      *  the same bounds as the input primitive (even though the input
      *  primitive's pixels are not used for processing).
      *  @param paint  Paint to use when filling the rect.
      *  @param rect   Rectangle of output pixels. If NULL or a given crop edge is
      *                not specified, the source primitive's bounds are used
      *                instead.
      */
-    static sk_sp<SkImageFilter> Make(const SkPaint& paint, const CropRect* cropRect = nullptr) {
-        return sk_sp<SkImageFilter>(new SkPaintImageFilter(paint, cropRect));
-    }
+    static sk_sp<SkImageFilter> Make(const SkPaint& paint, const CropRect* cropRect = nullptr);
 
     bool affectsTransparentBlack() const override;
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPaintImageFilter)
 
 #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
     static SkImageFilter* Create(const SkPaint& paint, const CropRect* rect = nullptr) {
         return Make(paint, rect).release();
     }
 #endif
 
 protected:
     void flatten(SkWriteBuffer&) const override;
     sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
                                         SkIPoint* offset) const override;
 
 private:
     SkPaintImageFilter(const SkPaint& paint, const CropRect* rect);
 
     SkPaint fPaint;
 
     typedef SkImageFilter INHERITED;
 };
 
 #endif