change flattenable factory to return sk_sp

src/effects/SkEmbossMaskFilter.cpp

 /*
  * Copyright 2006 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.
  */
 
 #include "SkEmbossMaskFilter.h"
 #include "SkBlurMaskFilter.h"
 #include "SkBlurMask.h"
@@ skipping 94 matching lines @@
                    SkPoint::Length(fLight.fDirection[0], fLight.fDirection[1]));
 
     SkEmbossMask::Emboss(dst, light);
 
     // restore original alpha
     memcpy(dst->fImage, src.fImage, src.computeImageSize());
 
     return true;
 }
 
-SkFlattenable* SkEmbossMaskFilter::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkEmbossMaskFilter::CreateProc(SkReadBuffer& buffer) {
     Light light;
     if (buffer.readByteArray(&light, sizeof(Light))) {
         light.fPad = 0; // for the font-cache lookup to be clean
         const SkScalar sigma = buffer.readScalar();
-        return Create(sigma, light);
+        return sk_sp<SkFlattenable>(Create(sigma, light));
     }
     return nullptr;
 }
 
 void SkEmbossMaskFilter::flatten(SkWriteBuffer& buffer) const {
     Light tmpLight = fLight;
     tmpLight.fPad = 0;    // for the font-cache lookup to be clean
     buffer.writeByteArray(&tmpLight, sizeof(tmpLight));
     buffer.writeScalar(fBlurSigma);
 }
@@ skipping 11 matching lines @@
     str->append(") ");
 
     str->appendf("ambient: %d specular: %d ",
         fLight.fAmbient, fLight.fSpecular);
 
     str->append("blurSigma: ");
     str->appendScalar(fBlurSigma);
     str->append(")");
 }
 #endif