Make SkStream *not* ref counted.

bench/nanobench.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "Benchmark.h"
@@ skipping 464 matching lines @@
         }
     }
 
     static bool ReadPicture(const char* path, SkAutoTUnref<SkPicture>* pic) {
         // Not strictly necessary, as it will be checked again later,
         // but helps to avoid a lot of pointless work if we're going to skip it.
         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, path)) {
             return false;
         }
 
-        SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
+        SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(path));
         if (stream.get() == NULL) {
             SkDebugf("Could not read %s.\n", path);
             return false;
         }
 
         pic->reset(SkPicture::CreateFromStream(stream.get()));
         if (pic->get() == NULL) {
             SkDebugf("Could not read %s as an SkPicture.\n", path);
             return false;
         }
@@ skipping 300 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif