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

media/base/audio_renderer_mixer.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_AUDIO_RENDERER_MIXER_H_
 #define MEDIA_BASE_AUDIO_RENDERER_MIXER_H_
 
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/time/time.h"
 #include "media/base/audio_converter.h"
 #include "media/base/audio_renderer_sink.h"
 #include "media/base/loopback_audio_converter.h"
 
 namespace media {
 
 // Mixes a set of AudioConverter::InputCallbacks into a single output stream
 // which is funneled into a single shared AudioRendererSink; saving a bundle
@@ skipping 18 matching lines @@
   void RemoveErrorCallback(const base::Closure& error_cb);
 
   void set_pause_delay_for_testing(base::TimeDelta delay) {
     pause_delay_ = delay;
   }
 
   OutputDeviceInfo GetOutputDeviceInfo();
 
  private:
   // Maps input sample rate to the dedicated converter.
-  typedef std::map<int, scoped_ptr<LoopbackAudioConverter>> AudioConvertersMap;
+  using AudioConvertersMap =
+      std::map<int, std::unique_ptr<LoopbackAudioConverter>>;
 
   // AudioRendererSink::RenderCallback implementation.
   int Render(AudioBus* audio_bus,
              uint32_t frames_delayed,
              uint32_t frames_skipped) override;
   void OnRenderError() override;
 
   bool is_master_sample_rate(int sample_rate) {
     return sample_rate == output_params_.sample_rate();
   }
@@ skipping 25 matching lines @@
   base::TimeDelta pause_delay_;
   base::TimeTicks last_play_time_;
   bool playing_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererMixer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_RENDERER_MIXER_H_