Move base::FreeDeleter into its own header.

media/audio/alsa/audio_manager_alsa.cc

 // 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.
 
 #include "media/audio/alsa/audio_manager_alsa.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/macros.h"
+#include "base/memory/free_deleter.h"
 #include "base/metrics/histogram.h"
 #include "base/nix/xdg_util.h"
 #include "base/process/launch.h"
 #include "base/stl_util.h"
 #include "media/audio/audio_output_dispatcher.h"
 #include "media/audio/audio_parameters.h"
 #if defined(USE_CRAS)
 #include "media/audio/cras/audio_manager_cras.h"
 #endif
 #include "media/audio/alsa/alsa_input.h"
@@ skipping 329 matching lines @@
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAlsaInputDevice)) {
     device_name = base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
         switches::kAlsaInputDevice);
   }
 
   return new AlsaPcmInputStream(this, device_name, params, wrapper_.get());
 }
 
 }  // namespace media