change flattenable factory to return sk_sp

src/effects/SkDiscretePathEffect.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 "SkDiscretePathEffect.h"
 #include "SkReadBuffer.h"
@@ skipping 109 matching lines @@
                 }
             }
             if (meas.isClosed()) {
                 dst->close();
             }
         }
     } while (meas.nextContour());
     return true;
 }
 
-SkFlattenable* SkDiscretePathEffect::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkDiscretePathEffect::CreateProc(SkReadBuffer& buffer) {
     SkScalar segLength = buffer.readScalar();
     SkScalar perterb = buffer.readScalar();
     uint32_t seed = buffer.readUInt();
-    return Make(segLength, perterb, seed).release();
+    return Make(segLength, perterb, seed);
 }
 
 void SkDiscretePathEffect::flatten(SkWriteBuffer& buffer) const {
     buffer.writeScalar(fSegLength);
     buffer.writeScalar(fPerterb);
     buffer.writeUInt(fSeedAssist);
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkDiscretePathEffect::toString(SkString* str) const {
     str->appendf("SkDiscretePathEffect: (");
     str->appendf("segLength: %.2f deviation: %.2f seed %d", fSegLength, fPerterb, fSeedAssist);
     str->append(")");
 }
 #endif