change flattenable factory to return sk_sp

src/effects/SkLayerRasterizer.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 "SkLayerRasterizer.h"
 #include "SkDraw.h"
@@ skipping 126 matching lines @@
 
         while ((rec = (SkLayerRasterizer_Rec*)iter.next()) != nullptr) {
             drawMatrix = translatedMatrix;
             drawMatrix.preTranslate(rec->fOffset.fX, rec->fOffset.fY);
             draw.drawPath(path, rec->fPaint);
         }
     }
     return true;
 }
 
-SkFlattenable* SkLayerRasterizer::CreateProc(SkReadBuffer& buffer) {
-    return new SkLayerRasterizer(ReadLayers(buffer));
+sk_sp<SkFlattenable> SkLayerRasterizer::CreateProc(SkReadBuffer& buffer) {
+    return sk_sp<SkFlattenable>(new SkLayerRasterizer(ReadLayers(buffer)));
 }
 
 SkDeque* SkLayerRasterizer::ReadLayers(SkReadBuffer& buffer) {
     int count = buffer.readInt();
 
     SkDeque* layers = new SkDeque(sizeof(SkLayerRasterizer_Rec));
     for (int i = 0; i < count; i++) {
         SkLayerRasterizer_Rec* rec = (SkLayerRasterizer_Rec*)layers->push_back();
 
         new (&rec->fPaint) SkPaint;
@@ skipping 59 matching lines @@
     while ((recOrig = static_cast<SkLayerRasterizer_Rec*>(iter.next())) != nullptr) {
         SkDEBUGCODE(count++);
         SkLayerRasterizer_Rec* recCopy = static_cast<SkLayerRasterizer_Rec*>(layers->push_back());
         new (&recCopy->fPaint) SkPaint(recOrig->fPaint);
         recCopy->fOffset = recOrig->fOffset;
     }
     SkASSERT(fLayers->count() == count);
     SkASSERT(layers->count() == count);
     return sk_sp<SkLayerRasterizer>(new SkLayerRasterizer(layers));
 }