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

media/cast/test/utility/audio_utility.cc

 // Copyright 2014 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.
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "base/time/time.h"
 #include "media/base/audio_bus.h"
 #include "media/cast/test/utility/audio_utility.h"
@@ skipping 12 matching lines @@
       volume_(volume),
       source_(num_channels, sine_wave_frequency, sample_rate) {
   CHECK_LT(0, num_channels);
   CHECK_LT(0, sample_rate);
   CHECK_LE(0.0f, volume_);
   CHECK_LE(volume_, 1.0f);
 }
 
 TestAudioBusFactory::~TestAudioBusFactory() {}
 
-scoped_ptr<AudioBus> TestAudioBusFactory::NextAudioBus(
+std::unique_ptr<AudioBus> TestAudioBusFactory::NextAudioBus(
     const base::TimeDelta& duration) {
   const int num_samples = static_cast<int>((sample_rate_ * duration) /
                                            base::TimeDelta::FromSeconds(1));
-  scoped_ptr<AudioBus> bus(AudioBus::Create(num_channels_, num_samples));
+  std::unique_ptr<AudioBus> bus(AudioBus::Create(num_channels_, num_samples));
   source_.OnMoreData(bus.get(), 0, 0);
   bus->Scale(volume_);
   return bus;
 }
 
 int CountZeroCrossings(const float* samples, int length) {
   // The sample values must pass beyond |kAmplitudeThreshold| on the opposite
   // side of zero before a crossing will be counted.
   const float kAmplitudeThreshold = 0.03f;  // 3% of max amplitude.
 
@@ skipping 131 matching lines @@
       }
       *timestamp = gray_coded;
       return true;
     }
   }
   return false;
 }
 
 }  // namespace cast
 }  // namespace media