change flattenable factory to return sk_sp

src/effects/SkBlurDrawLooper.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlurDrawLooper.h"
 #include "SkBlurMask.h"     // just for SkBlurMask::ConvertRadiusToSigma
 #include "SkBlurMaskFilter.h"
@@ skipping 43 matching lines @@
                             SkColor color, uint32_t flags) {
     fSigma = sigma;
     fDx = dx;
     fDy = dy;
     fBlurColor = color;
     fBlurFlags = flags;
 
     this->initEffects();
 }
 
-SkFlattenable* SkBlurDrawLooper::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkBlurDrawLooper::CreateProc(SkReadBuffer& buffer) {
     const SkColor color = buffer.readColor();
     const SkScalar sigma = buffer.readScalar();
     const SkScalar dx = buffer.readScalar();
     const SkScalar dy = buffer.readScalar();
     const uint32_t flags = buffer.read32();
-    return Make(color, sigma, dx, dy, flags).release();
+    return Make(color, sigma, dx, dy, flags);
 }
 
 void SkBlurDrawLooper::flatten(SkWriteBuffer& buffer) const {
     buffer.writeColor(fBlurColor);
     buffer.writeScalar(fSigma);
     buffer.writeScalar(fDx);
     buffer.writeScalar(fDy);
     buffer.write32(fBlurFlags);
 }
 
@@ skipping 92 matching lines @@
                           &needsSeparator);
         SkAddFlagToString(str, SkToBool(kHighQuality_BlurFlag & fBlurFlags), "HighQuality",
                           &needsSeparator);
     }
     str->append(")");
 
     // TODO: add optional "fBlurFilter->toString(str);" when SkMaskFilter::toString is added
     // alternatively we could cache the radius in SkBlurDrawLooper and just add it here
 }
 #endif