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 190 matching lines @@
     case base::Value::TYPE_DOUBLE:
     case base::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())
     content::RecordComputedAction(metric);
 }
 
 void CoreOptionsHandler::ProcessUserMetric(const base::Value* value,
                                            const std::string& metric) {
   if (metric.empty())
     return;
 
@@ skipping 226 matching lines @@
     content::RecordComputedAction(metric);
 }
 
 void CoreOptionsHandler::UpdateClearPluginLSOData() {
   scoped_ptr<base::Value> enabled(
       base::Value::CreateBooleanValue(
           clear_plugin_lso_data_enabled_.GetValue()));
   web_ui_->CallJavascriptFunction(
       "OptionsPage.setClearPluginLSODataEnabled", *enabled);
 }