change flattenable factory to return sk_sp

src/effects/Sk1DPathEffect.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 "Sk1DPathEffect.h"
 #include "SkReadBuffer.h"
@@ skipping 127 matching lines @@
                 SkDEBUGFAIL("unknown verb");
                 break;
         }
     }
 }
 
 SkScalar SkPath1DPathEffect::begin(SkScalar contourLength) const {
     return fInitialOffset;
 }
 
-SkFlattenable* SkPath1DPathEffect::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkPath1DPathEffect::CreateProc(SkReadBuffer& buffer) {
     SkScalar advance = buffer.readScalar();
     if (advance > 0) {
         SkPath path;
         buffer.readPath(&path);
         SkScalar phase = buffer.readScalar();
         Style style = (Style)buffer.readUInt();
-        return SkPath1DPathEffect::Make(path, advance, phase, style).release();
+        return SkPath1DPathEffect::Make(path, advance, phase, style);
     }
     return nullptr;
 }
 
 void SkPath1DPathEffect::flatten(SkWriteBuffer& buffer) const {
     buffer.writeScalar(fAdvance);
     if (fAdvance > 0) {
         buffer.writePath(fPath);
         buffer.writeScalar(fInitialOffset);
         buffer.writeUInt(fStyle);
@@ skipping 37 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 sk_sp<SkPathEffect> SkPath1DPathEffect::Make(const SkPath& path, SkScalar advance, SkScalar phase,
                                              Style style) {
     if (advance <= 0 || path.isEmpty()) {
         return nullptr;
     }
     return sk_sp<SkPathEffect>(new SkPath1DPathEffect(path, advance, phase, style));
 }