Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/browser/chromeos/status/input_method_menu.cc

Index: chrome/browser/chromeos/status/input_method_menu.cc
diff --git a/chrome/browser/chromeos/status/input_method_menu.cc b/chrome/browser/chromeos/status/input_method_menu.cc
index 8a8037e6e153283440cf23bde8f50ebd2600aad3..1402e176a8d773cdfac5380ef42c908accec6f66 100644
--- a/chrome/browser/chromeos/status/input_method_menu.cc
+++ b/chrome/browser/chromeos/status/input_method_menu.cc
@@ -426,14 +426,13 @@ void InputMethodMenu::PreferenceUpdateNeeded(
       // Sometimes (e.g. initial boot) |previous_input_method.id()| is empty.
       previous_input_method_pref_.SetValue(previous_input_method.id());
       current_input_method_pref_.SetValue(current_input_method.id());
-      pref_service_->ScheduleSavePersistentPrefs();
     }
   } else if (screen_mode_ == StatusAreaHost::kViewsLoginMode ||
       screen_mode_ == StatusAreaHost::kWebUILoginMode) {
     if (g_browser_process && g_browser_process->local_state()) {
       g_browser_process->local_state()->SetString(
           language_prefs::kPreferredKeyboardLayout, current_input_method.id());
-      g_browser_process->local_state()->SavePersistentPrefs();
+      g_browser_process->local_state()->CommitPendingWrite();
     }
   }
 }