SkFontData to use smart pointers.

include/utils/mac/SkCGUtils.h

Index: include/utils/mac/SkCGUtils.h
diff --git a/include/utils/mac/SkCGUtils.h b/include/utils/mac/SkCGUtils.h
index 3d9aff44515facfe437ef8ae2ccc015ca1788705..29df8b81a889d4050ab5f59bea06b0054869c502 100644
--- a/include/utils/mac/SkCGUtils.h
+++ b/include/utils/mac/SkCGUtils.h
@@ -23,7 +23,7 @@
 
 class SkBitmap;
 class SkData;
-class SkStream;
+class SkStreamRewindable;
 
 /**
  *  Given a CGImage, allocate an SkBitmap and copy the image's pixels into it. If scaleToFit is not
@@ -65,20 +65,12 @@ static inline CGImageRef SkCreateCGImageRef(const SkBitmap& bm) {
 void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y);
 
 /**
- *  Create an SkBitmap drawing of the encoded PDF document, returning true on
- *  success. Deletes the stream when finished.
- */
-bool SkPDFDocumentToBitmap(SkStream* stream, SkBitmap* output);
-
-/**
- *  Return a provider that wraps the specified stream. It will become the only
- *  owner of the stream, so the caller must stop referring to the stream.
- *
+ *  Return a provider that wraps the specified stream.
  *  When the provider is finally deleted, it will delete the stream.
  */
-CGDataProviderRef SkCreateDataProviderFromStream(SkStream*);
+CGDataProviderRef SkCreateDataProviderFromStream(std::unique_ptr<SkStreamRewindable>);
 
-CGDataProviderRef SkCreateDataProviderFromData(SkData*);
+CGDataProviderRef SkCreateDataProviderFromData(sk_sp<SkData>);
 
 #endif  // defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
 #endif  // SkCGUtils_DEFINED