Replace scoped_ptr with std::unique_ptr in //media/base.

media/base/audio_renderer_mixer_input_unittest.cc

Index: media/base/audio_renderer_mixer_input_unittest.cc
diff --git a/media/base/audio_renderer_mixer_input_unittest.cc b/media/base/audio_renderer_mixer_input_unittest.cc
index b9a2c7b63fb7973274bec85e4687576968044294..814b8ede316c5c1e13a5c26722f3406477b35539 100644
--- a/media/base/audio_renderer_mixer_input_unittest.cc
+++ b/media/base/audio_renderer_mixer_input_unittest.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include <stddef.h>
+#include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ -99,10 +100,10 @@ class AudioRendererMixerInputTest : public testing::Test {
   virtual ~AudioRendererMixerInputTest() {}
 
   AudioParameters audio_parameters_;
-  scoped_ptr<AudioRendererMixer> mixers_[2];
+  std::unique_ptr<AudioRendererMixer> mixers_[2];
   scoped_refptr<AudioRendererMixerInput> mixer_input_;
-  scoped_ptr<FakeAudioRenderCallback> fake_callback_;
-  scoped_ptr<AudioBus> audio_bus_;
+  std::unique_ptr<FakeAudioRenderCallback> fake_callback_;
+  std::unique_ptr<AudioBus> audio_bus_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerInputTest);