Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

chrome/browser/chromeos/settings/device_settings_cache.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 "chrome/browser/chromeos/settings/device_settings_cache.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
 
 namespace em = enterprise_management;
 
 namespace chromeos {
 
 namespace device_settings_cache {
 
-void RegisterPrefs(PrefServiceSimple* local_state) {
+void RegisterPrefs(PrefRegistrarSimple* local_state) {
   local_state->RegisterStringPref(prefs::kDeviceSettingsCache, "invalid");
 }
 
 bool Store(const em::PolicyData& policy, PrefService* local_state) {
   if (local_state) {
     std::string policy_string = policy.SerializeAsString();
     std::string encoded;
     if (!base::Base64Encode(policy_string, &encoded)) {
       LOG(ERROR) << "Can't encode policy in base64.";
       return false;
@@ skipping 15 matching lines @@
       return false;
     }
     return policy->ParseFromString(policy_string);
   }
   return false;
 }
 
 }  // namespace device_settings_cache
 
 }  // namespace chromeos