SkPDF: AutoTUnref<T> changes in use

src/pdf/SkPDFTypes.h

Index: src/pdf/SkPDFTypes.h
diff --git a/src/pdf/SkPDFTypes.h b/src/pdf/SkPDFTypes.h
index 99320b1efc77708347d3f71e96a314a466872813..97c4fa1dbf5e890cffc5e197a2fc8a84851e6eb8 100644
--- a/src/pdf/SkPDFTypes.h
+++ b/src/pdf/SkPDFTypes.h
@@ -318,7 +318,7 @@ class SkPDFSharedStream final : public SkPDFObject {
 public:
     // Takes ownership of asset.
     SkPDFSharedStream(SkStreamAsset* data) : fAsset(data), fDict(new SkPDFDict) { SkASSERT(data); }
-    SkPDFDict* dict() { return fDict; }
+    SkPDFDict* dict() { return fDict.get(); }
     void emitObject(SkWStream*,
                     const SkPDFObjNumMap&,
                     const SkPDFSubstituteMap&) const override;