Make sp variants for SkData

src/core/SkPixmap.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 "SkColorPriv.h"
 #include "SkConfig8888.h"
 #include "SkData.h"
@@ skipping 297 matching lines @@
     if (!this->tryAlloc(info)) {
         sk_throw();
     }
 }
 
 const SkData* SkAutoPixmapStorage::detachPixelsAsData() {
     if (!fStorage) {
         return nullptr;
     }
 
-    const SkData* data = SkData::NewFromMalloc(fStorage, this->getSafeSize());
+    auto data = SkData::MakeFromMalloc(fStorage, this->getSafeSize());
     fStorage = nullptr;
     this->INHERITED::reset();
 
-    return data;
+    return data.release();
 }