Convert //media/audio from scoped_ptr to std::unique_ptr

media/audio/sounds/audio_stream_handler_unittest.cc

Index: media/audio/sounds/audio_stream_handler_unittest.cc
diff --git a/media/audio/sounds/audio_stream_handler_unittest.cc b/media/audio/sounds/audio_stream_handler_unittest.cc
index 4863bc921a8defd0f73681c9e47118e02f83f448..4367e9d94c1edb5dd93602cb6bdd47507f889ddc 100644
--- a/media/audio/sounds/audio_stream_handler_unittest.cc
+++ b/media/audio/sounds/audio_stream_handler_unittest.cc
@@ -2,18 +2,20 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "media/audio/sounds/audio_stream_handler.h"
+
+#include <memory>
+
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/test/test_message_loop.h"
 #include "base/thread_task_runner_handle.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/simple_sources.h"
-#include "media/audio/sounds/audio_stream_handler.h"
 #include "media/audio/sounds/test_data.h"
 #include "media/base/channel_layout.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -55,7 +57,7 @@ class AudioStreamHandlerTest : public testing::Test {
  private:
   base::TestMessageLoop message_loop_;
   ScopedAudioManagerPtr audio_manager_;
-  scoped_ptr<AudioStreamHandler> audio_stream_handler_;
+  std::unique_ptr<AudioStreamHandler> audio_stream_handler_;
 };
 
 TEST_F(AudioStreamHandlerTest, Play) {