Make SkStream *not* ref counted.

src/ports/SkFontMgr_fontconfig.cpp

Index: src/ports/SkFontMgr_fontconfig.cpp
diff --git a/src/ports/SkFontMgr_fontconfig.cpp b/src/ports/SkFontMgr_fontconfig.cpp
index b5e4eaed647fa8d36526dba65b73ec1c002bb8ca..13fd899271c24042e2eaef423fdc05ab48a1167e 100644
--- a/src/ports/SkFontMgr_fontconfig.cpp
+++ b/src/ports/SkFontMgr_fontconfig.cpp
@@ -378,7 +378,7 @@ public:
     /** @param stream does not take ownership of the reference, does take ownership of the stream.*/
     SkTypeface_stream(const SkFontStyle& style, bool fixedWidth, int index, SkStreamAsset* stream)
         : INHERITED(style, SkTypefaceCache::NewFontID(), fixedWidth)
-        , fStream(SkRef(stream))
+        , fStream(stream)
         , fIndex(index)
     { };
 
@@ -397,7 +397,7 @@ public:
     }
 
 private:
-    SkAutoTUnref<SkStreamAsset> fStream;
+    SkAutoTDelete<SkStreamAsset> fStream;
     int fIndex;
 
     typedef SkTypeface_FreeType INHERITED;
@@ -827,13 +827,11 @@ protected:
     }
 
     SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OVERRIDE {
-        SkAutoTUnref<SkStreamAsset> stream(SkNEW_ARGS(SkMemoryStream, (data)));
-        return this->createFromStream(stream, ttcIndex);
+        return this->createFromStream(SkNEW_ARGS(SkMemoryStream, (data)), ttcIndex);
     }
 
     SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const SK_OVERRIDE {
-        SkAutoTUnref<SkStreamAsset> stream(SkStream::NewFromFile(path));
-        return this->createFromStream(stream, ttcIndex);
+        return this->createFromStream(SkStream::NewFromFile(path), ttcIndex);
     }
 
     virtual SkTypeface* onLegacyCreateTypeface(const char familyName[],