use unique_ptr for stream api

Bug: skia:6888
Change-Id: I3459b4913982a7cae1c0061697c82cc65ad9a2d8
Reviewed-on: https://skia-review.googlesource.com/26740
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/tests/CodecTest.cpp b/tests/CodecTest.cpp
index baa2314..f2551d2 100644
--- a/tests/CodecTest.cpp
+++ b/tests/CodecTest.cpp
@@ -442,10 +442,10 @@
 
 #ifndef SK_PNG_DISABLE_TESTS
         // Test using SkFrontBufferedStream, as Android does
-        SkStream* bufferedStream = SkFrontBufferedStream::Create(
-                new SkMemoryStream(std::move(fullData)), SkCodec::MinBufferedBytesNeeded());
+        auto bufferedStream = SkFrontBufferedStream::Make(
+                      SkMemoryStream::Make(std::move(fullData)), SkCodec::MinBufferedBytesNeeded());
         REPORTER_ASSERT(r, bufferedStream);
-        codec = SkCodec::MakeFromStream(std::unique_ptr<SkStream>(bufferedStream));
+        codec = SkCodec::MakeFromStream(std::move(bufferedStream));
         REPORTER_ASSERT(r, codec);
         if (codec) {
             test_info(r, codec.get(), info, SkCodec::kSuccess, &codecDigest);