Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/browser/ui/webui/options2/core_options_handler2.cc

Index: chrome/browser/ui/webui/options2/core_options_handler2.cc
diff --git a/chrome/browser/ui/webui/options2/core_options_handler2.cc b/chrome/browser/ui/webui/options2/core_options_handler2.cc
index 6158ebb2a964de8df476958e84a1894f750519e6..9e0fc25627eb1fe5361791e49b6973d1f1673ff7 100644
--- a/chrome/browser/ui/webui/options2/core_options_handler2.cc
+++ b/chrome/browser/ui/webui/options2/core_options_handler2.cc
@@ -210,8 +210,6 @@ void CoreOptionsHandler::SetPref(const std::string& pref_name,
       return;
   }
 
-  pref_service->ScheduleSavePersistentPrefs();
-
   ProcessUserMetric(value, metric);
 }
 
@@ -219,7 +217,6 @@ 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);