change flattenable factory to return sk_sp

src/core/SkLightingShader.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapProcState.h"
 #include "SkColor.h"
 #include "SkEmptyShader.h"
@@ skipping 534 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////
 
 #ifndef SK_IGNORE_TO_STRING
 void SkLightingShaderImpl::toString(SkString* str) const {
     str->appendf("LightingShader: ()");
 }
 #endif
 
-SkFlattenable* SkLightingShaderImpl::CreateProc(SkReadBuffer& buf) {
+sk_sp<SkFlattenable> SkLightingShaderImpl::CreateProc(SkReadBuffer& buf) {
     SkMatrix diffLocalM;
     bool hasDiffLocalM = buf.readBool();
     if (hasDiffLocalM) {
         buf.readMatrix(&diffLocalM);
     } else {
         diffLocalM.reset();
     }
 
     SkMatrix normLocalM;
     bool hasNormLocalM = buf.readBool();
@@ skipping 33 matching lines @@
             SkVector3 dir;
             if (!buf.readScalarArray(&dir.fX, 3)) {
                 return nullptr;
             }
             builder.add(SkLight(color, dir));
         }
     }
 
     SkAutoTUnref<const SkLightingShader::Lights> lights(builder.finish());
 
-    return new SkLightingShaderImpl(diffuse, normal, lights, SkVector::Make(1.0f, 0.0f),
-                                    &diffLocalM, &normLocalM);
+    return sk_make_sp<SkLightingShaderImpl>(diffuse, normal, lights, SkVector::Make(1.0f, 0.0f),
+                                            &diffLocalM, &normLocalM);
 }
 
 void SkLightingShaderImpl::flatten(SkWriteBuffer& buf) const {
     this->INHERITED::flatten(buf);
 
     bool hasNormLocalM = !fNormLocalMatrix.isIdentity();
     buf.writeBool(hasNormLocalM);
     if (hasNormLocalM) {
         buf.writeMatrix(fNormLocalMatrix);
     }
@@ skipping 95 matching lines @@
                                             normLocalM);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingShader)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLightingShaderImpl)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
 
 ///////////////////////////////////////////////////////////////////////////////