Make sp variants for SkData

src/core/SkPixmap.cpp

Index: src/core/SkPixmap.cpp
diff --git a/src/core/SkPixmap.cpp b/src/core/SkPixmap.cpp
index 57bb194258d5f2bdc7b6eb1953c2108d565eaf2b..5f3c3a086a7efa68ae54fea2591edcf36f339d59 100644
--- a/src/core/SkPixmap.cpp
+++ b/src/core/SkPixmap.cpp
@@ -315,9 +315,9 @@ const SkData* SkAutoPixmapStorage::detachPixelsAsData() {
         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();
 }