Update chrome for new prefs location.

chrome/browser/chromeos/policy/server_backed_device_state.cc

 // Copyright (c) 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 "chrome/browser/chromeos/policy/server_backed_device_state.h"
 
 #include <string>
 
 #include "base/logging.h"
-#include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part.h"
 #include "chrome/common/pref_names.h"
+#include "components/prefs/pref_service.h"
 
 namespace policy {
 
 const char kDeviceStateManagementDomain[] = "management_domain";
 const char kDeviceStateRestoreMode[] = "device_mode";
 const char kDeviceStateDisabledMessage[] = "disabled_message";
 
 const char kDeviceStateRestoreModeReEnrollmentRequested[] =
     "re-enrollment-requested";
 const char kDeviceStateRestoreModeReEnrollmentEnforced[] =
@@ skipping 12 matching lines @@
   if (restore_mode == kDeviceStateRestoreModeReEnrollmentEnforced)
     return RESTORE_MODE_REENROLLMENT_ENFORCED;
   if (restore_mode == kDeviceStateRestoreModeDisabled)
     return RESTORE_MODE_DISABLED;
 
   NOTREACHED();
   return RESTORE_MODE_NONE;
 }
 
 }  // namespace policy