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

media/audio/audio_manager_base.cc

 // 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.
 
 #include "media/audio/audio_manager_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 357 matching lines @@
   const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
   int buffer_size = 0;
   std::string buffer_size_str(cmd_line->GetSwitchValueASCII(
       switches::kAudioBufferSize));
   if (base::StringToInt(buffer_size_str, &buffer_size) && buffer_size > 0)
     return buffer_size;
 
   return 0;
 }
 
-scoped_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
+std::unique_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
     AudioLogFactory::AudioComponent component) {
   return audio_log_factory_->CreateAudioLog(component);
 }
 
 }  // namespace media