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

chromeos/audio/audio_devices_pref_handler_impl_unittest.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 "chromeos/audio/audio_devices_pref_handler_impl.h"
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/prefs/testing_pref_service.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/audio/audio_devices_pref_handler.h"
 #include "chromeos/chromeos_pref_names.h"
 #include "chromeos/dbus/audio_node.h"
-#include "components/prefs/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
 const uint64_t kInternalMicId = 10003;
 const uint64_t kHeadphoneId = 10002;
 const uint64_t kHDMIOutputId = 10006;
 const uint64_t kOtherTypeOutputId = 90001;
 const uint64_t kOtherTypeInputId = 90002;
 
@@ skipping 114 matching lines @@
             audio_pref_handler_->GetDeviceState(kInternalMic));
   audio_pref_handler_->SetDeviceState(kHeadphone, AUDIO_STATE_ACTIVE);
   EXPECT_EQ(AUDIO_STATE_ACTIVE,
             audio_pref_handler_->GetDeviceState(kHeadphone));
   audio_pref_handler_->SetDeviceState(kHDMIOutput, AUDIO_STATE_INACTIVE);
   EXPECT_EQ(AUDIO_STATE_INACTIVE,
             audio_pref_handler_->GetDeviceState(kHDMIOutput));
 }
 
 }  // namespace chromeos