[cros] Use ScheduleSavePersistentPrefs instead of SavePersistentPrefs.

chrome/browser/chromeos/accessibility_util.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/chromeos/accessibility_util.h"
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/dbus/dbus_thread_manager.h"
@@ skipping 75 matching lines @@
       g_browser_process->local_state()->GetBoolean(
           prefs::kAccessibilityEnabled);
   if (accessibility_enabled == enabled) {
     LOG(INFO) << "Accessibility is already " <<
         (enabled ? "enabled" : "disabled") << ".  Going to do nothing.";
     return;
   }
 
   g_browser_process->local_state()->SetBoolean(
       prefs::kAccessibilityEnabled, enabled);
-  // Explicitly call SavePersistentPrefs instead of ScheduleSavePersistentPrefs
-  // so that this change gets written immediately, in case the user shuts
-  // down right now.  TODO(dmazzoni) switch this back to
-  // ScheduleSavePersistentPrefs once http://crosbug.com/19491 is fixed.
-  g_browser_process->local_state()->SavePersistentPrefs();
+  g_browser_process->local_state()->ScheduleSavePersistentPrefs();
   ExtensionAccessibilityEventRouter::GetInstance()->
       SetAccessibilityEnabled(enabled);
 
   Speak(enabled ?
         l10n_util::GetStringUTF8(IDS_CHROMEOS_ACC_ACCESS_ENABLED).c_str() :
         l10n_util::GetStringUTF8(IDS_CHROMEOS_ACC_ACCESS_DISABLED).c_str(),
         false, true);
 
   // Load/Unload ChromeVox
   Profile* profile = ProfileManager::GetDefaultProfile();
@@ skipping 61 matching lines @@
   bool accessibility_enabled = g_browser_process &&
       g_browser_process->local_state()->GetBoolean(
           prefs::kAccessibilityEnabled);
   if (accessibility_enabled) {
     Speak(speak_str, queue, interruptible);
   }
 }
 
 }  // namespace accessibility
 }  // namespace chromeos