change SkStreams to work with sk_sp<SkData> instead of SkData*

src/codec/SkCodecImageGenerator.h

Index: src/codec/SkCodecImageGenerator.h
diff --git a/src/codec/SkCodecImageGenerator.h b/src/codec/SkCodecImageGenerator.h
index b12564329d78279e0a6ef25176f8e7461141bf26..22a39aaaa90e2be07036156e0b99e84f1a2edcf0 100644
--- a/src/codec/SkCodecImageGenerator.h
+++ b/src/codec/SkCodecImageGenerator.h
@@ -14,11 +14,11 @@ public:
     /*
      * If this data represents an encoded image that we know how to decode,
      * return an SkCodecImageGenerator.  Otherwise return nullptr.
-     *
-     * Refs the data if an image generator can be returned.  Otherwise does
-     * not affect the data.
      */
-    static SkImageGenerator* NewFromEncodedCodec(SkData* data);
+    static SkImageGenerator* NewFromEncodedCodec(sk_sp<SkData>);
+    static SkImageGenerator* NewFromEncodedCodec(SkData* data) {
+        return NewFromEncodedCodec(sk_ref_sp(data));
+    }
 
 protected:
     SkData* onRefEncodedData(SK_REFENCODEDDATA_CTXPARAM) override;
@@ -33,9 +33,8 @@ protected:
 private:
     /*
      * Takes ownership of codec
-     * Refs the data
      */
-    SkCodecImageGenerator(SkCodec* codec, SkData* data);
+    SkCodecImageGenerator(SkCodec* codec, sk_sp<SkData>);
 
     SkAutoTDelete<SkCodec> fCodec;
     sk_sp<SkData> fData;