Outline SkImageFilter Make methods

include/effects/SkMergeImageFilter.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 SkMergeImageFilter_DEFINED
 #define SkMergeImageFilter_DEFINED
 
 #include "SkImageFilter.h"
 
 #include "SkXfermode.h"
 
 class SK_API SkMergeImageFilter : public SkImageFilter {
 public:
     ~SkMergeImageFilter() override;
 
     static sk_sp<SkImageFilter> Make(sk_sp<SkImageFilter> first, sk_sp<SkImageFilter> second,
                                      SkXfermode::Mode mode = SkXfermode::kSrcOver_Mode,
-                                     const CropRect* cropRect = nullptr) {
-        sk_sp<SkImageFilter> inputs[2] = { first, second };
-        SkXfermode::Mode modes[2] = { mode, mode };
-        return sk_sp<SkImageFilter>(new SkMergeImageFilter(inputs, 2, modes, cropRect));
-    }
-
+                                     const CropRect* cropRect = nullptr);
     static sk_sp<SkImageFilter> Make(sk_sp<SkImageFilter> filters[],
                                      int count,
                                      const SkXfermode::Mode modes[] = nullptr,
-                                     const CropRect* cropRect = nullptr) {
-        return sk_sp<SkImageFilter>(new SkMergeImageFilter(filters, count, modes, cropRect));
-    }
+                                     const CropRect* cropRect = nullptr);
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter)
 
 #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
     static SkImageFilter* Create(SkImageFilter* first, SkImageFilter* second,
                                  SkXfermode::Mode mode = SkXfermode::kSrcOver_Mode,
                                  const CropRect* cropRect = nullptr) {
         return Make(sk_ref_sp<SkImageFilter>(first),
                     sk_ref_sp<SkImageFilter>(second),
@@ skipping 26 matching lines @@
     // of the modes (unless the count is so large we can't fit).
     intptr_t    fStorage[16];
 
     void initAllocModes();
     void initModes(const SkXfermode::Mode []);
 
     typedef SkImageFilter INHERITED;
 };
 
 #endif