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

media/audio/sounds/wav_audio_handler.h

 // Copyright 2013 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_AUDIO_SOUNDS_WAV_AUDIO_HANDLER_H_
 #define MEDIA_AUDIO_SOUNDS_WAV_AUDIO_HANDLER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "base/time/time.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 class AudioBus;
 
 // This class provides the input from wav file format.  See
 // https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
 class MEDIA_EXPORT WavAudioHandler {
  public:
   virtual ~WavAudioHandler();
 
   // Create a WavAudioHandler using |wav_data|. If |wav_data| cannot be parsed
   // correctly, the returned scoped_ptr will be null. The underlying memory for
   // wav_data must survive for the lifetime of this class.
-  static scoped_ptr<WavAudioHandler> Create(const base::StringPiece wav_data);
+  static std::unique_ptr<WavAudioHandler> Create(
+      const base::StringPiece wav_data);
 
   // Returns true when cursor points to the end of the track.
   bool AtEnd(size_t cursor) const;
 
   // Copies the audio data to |bus| starting from the |cursor| and in
   // the case of success stores the number of written bytes in
   // |bytes_written|. |bytes_written| should not be NULL. Returns false if the
   // operation was unsuccessful. Returns true otherwise.
   bool CopyTo(AudioBus* bus, size_t cursor, size_t* bytes_written) const;
 
@@ skipping 20 matching lines @@
   const uint32_t sample_rate_;
   const uint16_t bits_per_sample_;
   uint32_t total_frames_;
 
   DISALLOW_COPY_AND_ASSIGN(WavAudioHandler);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_SOUNDS_WAV_AUDIO_HANDLER_H_