Remove AudioBuffersState usage in Chromium

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/basictypes.h"
 #include "base/logging.h"
 #include "base/time/time.h"
 #include "media/base/audio_bus.h"
@@ skipping 18 matching lines @@
   CHECK_LE(volume_, 1.0f);
 }
 
 TestAudioBusFactory::~TestAudioBusFactory() {}
 
 scoped_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));
-  source_.OnMoreData(bus.get(), AudioBuffersState());
+  source_.OnMoreData(bus.get(), 0);
   bus->Scale(volume_);
   return bus.Pass();
 }
 
 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.
 
   int count = 0;
@@ skipping 130 matching lines @@
       }
       *timestamp = gray_coded;
       return true;
     }
   }
   return false;
 }
 
 }  // namespace cast
 }  // namespace media