Remove another caller of SkRef(SkStream)

src/ports/SkFontHost_linux.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFontHost.h"
 #include "SkFontHost_FreeType_common.h"
 #include "SkFontDescriptor.h"
@@ skipping 67 matching lines @@
 private:
     typedef SkTypeface_Custom INHERITED;
 };
 
 /** The stream SkTypeface implementation for the custom font manager. */
 class SkTypeface_Stream : public SkTypeface_Custom {
 public:
     SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont,
                       const SkString familyName, SkStream* stream, int index)
         : INHERITED(style, isFixedPitch, sysFont, familyName, index)
-        , fStream(SkRef(stream))
+        , fStream(stream)
     { }
 
     const char* getUniqueString() const SK_OVERRIDE { return NULL; }
 
 protected:
     SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE {
         *ttcIndex = this->getIndex();
         return fStream->duplicate();
     }
 
@@ skipping 331 matching lines @@
 
     SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies;
     SkFontStyleSet_Custom* gDefaultFamily;
     SkTypeface* gDefaultNormal;
     SkTypeface_FreeType::Scanner fScanner;
 };
 
 SkFontMgr* SkFontMgr::Factory() {
     return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX);
 }