Make sp variants for SkData

src/core/SkFontDescriptor.cpp

Index: src/core/SkFontDescriptor.cpp
diff --git a/src/core/SkFontDescriptor.cpp b/src/core/SkFontDescriptor.cpp
index f477a2d69546efc15a52ecc7805b8163f209cf08..69fdc154326936a56d46b1b1dc00e78f9990d3de 100644
--- a/src/core/SkFontDescriptor.cpp
+++ b/src/core/SkFontDescriptor.cpp
@@ -96,7 +96,7 @@ bool SkFontDescriptor::Deserialize(SkStream* stream, SkFontDescriptor* result) {
 
     size_t length = stream->readPackedUInt();
     if (length > 0) {
-        SkAutoTUnref<SkData> data(SkData::NewUninitialized(length));
+        sk_sp<SkData> data(SkData::MakeUninitialized(length));
         if (stream->read(data->writable_data(), length) == length) {
             result->fFontData.reset(new SkFontData(new SkMemoryStream(data),
                                                    index, axis, axisCount));