SkPDF s/SkAutoTDelete/std::unique_ptr/

src/pdf/SkPDFDocument.cpp

Index: src/pdf/SkPDFDocument.cpp
diff --git a/src/pdf/SkPDFDocument.cpp b/src/pdf/SkPDFDocument.cpp
index cf312e55fbc3c171b7c7121719066872ed244295..32fffde676fc87db0be9d9ae0a4be1b82c75a4dc 100644
--- a/src/pdf/SkPDFDocument.cpp
+++ b/src/pdf/SkPDFDocument.cpp
@@ -362,7 +362,7 @@ SkDocument* SkDocument::CreatePDF(SkWStream* stream,
 
 SkDocument* SkDocument::CreatePDF(const char path[], SkScalar dpi) {
     auto delete_wstream = [](SkWStream* stream, bool) { delete stream; };
-    SkAutoTDelete<SkFILEWStream> stream(new SkFILEWStream(path));
+    std::unique_ptr<SkFILEWStream> stream(new SkFILEWStream(path));
     return stream->isValid()
         ? SkPDFMakeDocument(stream.release(), delete_wstream, dpi, nullptr).release()
         : nullptr;