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

media/base/audio_buffer_converter.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 "media/base/audio_buffer_converter.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/logging.h"
@@ skipping 175 matching lines @@
 
   if (!request_frames)
     return;
 
   scoped_refptr<AudioBuffer> output_buffer =
       AudioBuffer::CreateBuffer(kSampleFormatPlanarF32,
                                 output_params_.channel_layout(),
                                 output_params_.channels(),
                                 output_params_.sample_rate(),
                                 request_frames);
-  scoped_ptr<AudioBus> output_bus =
+  std::unique_ptr<AudioBus> output_bus =
       AudioBus::CreateWrapper(output_buffer->channel_count());
 
   int frames_remaining = request_frames;
 
   // The AudioConverter wants requests of a fixed size, so we'll slide an
   // AudioBus of that size across the |output_buffer|.
   while (frames_remaining != 0) {
     // It's important that this is a multiple of AudioBus::kChannelAlignment in
     // all requests except for the last, otherwise downstream SIMD optimizations
     // will crash on unaligned data.
@@ skipping 33 matching lines @@
   is_flushing_ = false;
   audio_converter_->Reset();
   DCHECK_EQ(input_frames_, 0);
   DCHECK_EQ(last_input_buffer_offset_, 0);
   DCHECK_LT(buffered_input_frames_, 1.0);
   DCHECK(queued_inputs_.empty());
   buffered_input_frames_ = 0.0;
 }
 
 }  // namespace media