Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/browser/ui/webui/options/core_options_handler.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/browser/ui/webui/options/core_options_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 198 matching lines @@
     case Value::TYPE_DOUBLE:
     case Value::TYPE_STRING:
       pref_service->Set(pref_name.c_str(), *value);
       break;
 
     default:
       NOTREACHED();
       return;
   }
 
-  pref_service->ScheduleSavePersistentPrefs();
   ProcessUserMetric(value, metric);
 }
 
 void CoreOptionsHandler::ClearPref(const std::string& pref_name,
                                    const std::string& metric) {
   PrefService* pref_service = Profile::FromWebUI(web_ui_)->GetPrefs();
   pref_service->ClearPref(pref_name.c_str());
-  pref_service->ScheduleSavePersistentPrefs();
 
   if (!metric.empty())
     UserMetrics::RecordComputedAction(metric);
 }
 
 void CoreOptionsHandler::ProcessUserMetric(const Value* value,
                                            const std::string& metric) {
   if (metric.empty())
     return;
 
@@ skipping 211 matching lines @@
     const std::wstring& callback_function = iter->second;
     ListValue result_value;
     result_value.Append(Value::CreateStringValue(pref_name->c_str()));
 
     result_value.Append(CreateValueForPref(pref_service, pref));
 
     web_ui_->CallJavascriptFunction(WideToASCII(callback_function),
                                     result_value);
   }
 }