Revert of Delete base/prefs and update callers to use components.

chromeos/audio/audio_devices_pref_handler_impl.cc

 // Copyright (c) 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 "chromeos/audio/audio_devices_pref_handler_impl.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_service.h"
+#include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/string_number_conversions.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/chromeos_pref_names.h"
-#include "components/prefs/pref_registry_simple.h"
-#include "components/prefs/pref_service.h"
-#include "components/prefs/scoped_user_pref_update.h"
 
 namespace {
 
 // Values used for muted preference.
 const int kPrefMuteOff = 0;
 const int kPrefMuteOn = 1;
 
 // Gets the device id string for storing audio preference. The format of
 // device string is a string consisting of 2 parts.
 // |integer from lower 32 bit of device id| :
@@ skipping 207 matching lines @@
   // media system.
   registry->RegisterBooleanPref(prefs::kAudioOutputAllowed, true);
 
   // Register the legacy audio prefs for migration.
   registry->RegisterDoublePref(prefs::kAudioVolumePercent,
                                kDefaultOutputVolumePercent);
   registry->RegisterIntegerPref(prefs::kAudioMute, kPrefMuteOff);
 }
 
 }  // namespace chromeos