change flattenable factory to return sk_sp

src/core/SkBitmapProcShader.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 "SkBitmapProcShader.h"
 #include "SkBitmapProcState.h"
 #include "SkBitmapProvider.h"
@@ skipping 257 matching lines @@
     if (texM) {
         texM->reset();
     }
     if (xy) {
         xy[0] = (TileMode)fTileModeX;
         xy[1] = (TileMode)fTileModeY;
     }
     return true;
 }
 
-SkFlattenable* SkBitmapProcShader::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkBitmapProcShader::CreateProc(SkReadBuffer& buffer) {
     SkMatrix lm;
     buffer.readMatrix(&lm);
     SkBitmap bm;
     if (!buffer.readBitmap(&bm)) {
         return nullptr;
     }
     bm.setImmutable();
     TileMode mx = (TileMode)buffer.readUInt();
     TileMode my = (TileMode)buffer.readUInt();
-    return SkShader::MakeBitmapShader(bm, mx, my, &lm).release();
+    return SkShader::MakeBitmapShader(bm, mx, my, &lm);
 }
 
 void SkBitmapProcShader::flatten(SkWriteBuffer& buffer) const {
     buffer.writeMatrix(this->getLocalMatrix());
     buffer.writeBitmap(fRawBitmap);
     buffer.writeUInt(fTileModeX);
     buffer.writeUInt(fTileModeY);
 }
 
 bool SkBitmapProcShader::isOpaque() const {
@@ skipping 155 matching lines @@
         inner.reset(GrSimpleTextureEffect::Create(texture, matrix, params));
     }
 
     if (kAlpha_8_SkColorType == fRawBitmap.colorType()) {
         return GrFragmentProcessor::MulOutputByInputUnpremulColor(inner);
     }
     return GrFragmentProcessor::MulOutputByInputAlpha(inner);
 }
 
 #endif