Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/service/service_process_prefs.cc

 // Copyright (c) 2011 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/service/service_process_prefs.h"
 
 #include "base/values.h"
 
 ServiceProcessPrefs::ServiceProcessPrefs(
     const FilePath& pref_filename,
     base::MessageLoopProxy* file_message_loop_proxy)
     : prefs_(new JsonPrefStore(pref_filename, file_message_loop_proxy)) {
 }
 
 ServiceProcessPrefs::~ServiceProcessPrefs() {}
 
 void ServiceProcessPrefs::ReadPrefs() {
   prefs_->ReadPrefs();
 }
 
 void ServiceProcessPrefs::WritePrefs() {
-  prefs_->WritePrefs();
+  prefs_->CommitPendingWrite();
 }
 
 void ServiceProcessPrefs::GetString(const std::string& key,
                                     std::string* result) {
   const Value* value;
   if (prefs_->GetValue(key, &value) == PersistentPrefStore::READ_OK)
     value->GetAsString(result);
 }
 
 void ServiceProcessPrefs::SetString(const std::string& key,
@@ skipping 18 matching lines @@
       !value->IsType(Value::TYPE_DICTIONARY)) {
     return;
   }
 
   *result = static_cast<const DictionaryValue*>(value);
 }
 
 void ServiceProcessPrefs::RemovePref(const std::string& key) {
   prefs_->RemoveValue(key);
 }