Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/browser/extensions/test_extension_prefs.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/extensions/test_extension_prefs.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 55 matching lines @@
 
 void TestExtensionPrefs::RecreateExtensionPrefs() {
   // We persist and reload the PrefService's PrefStores because this process
   // deletes all empty dictionaries. The ExtensionPrefs implementation
   // needs to be able to handle this situation.
   if (pref_service_.get()) {
     // The PrefService writes its persistent file on the file thread, so we
     // need to wait for any pending I/O to complete before creating a new
     // PrefService.
     base::WaitableEvent io_finished(false, false);
-    pref_service_->SavePersistentPrefs();
+    pref_service_-> CommitPendingWrite();
     EXPECT_TRUE(BrowserThread::PostTask(
         BrowserThread::FILE,
         FROM_HERE,
         base::Bind(&base::WaitableEvent::Signal,
                    base::Unretained(&io_finished))));
 
     // If the FILE thread is in fact the current thread (possible in testing
     // scenarios), we have to ensure the task has a chance to run. If the FILE
     // thread is a different thread, the test must ensure that thread is running
     // (otherwise the Wait below will hang).
@@ skipping 67 matching lines @@
 }
 
 PrefService* TestExtensionPrefs::CreateIncognitoPrefService() const {
   return pref_service_->CreateIncognitoPrefService(
       new ExtensionPrefStore(extension_pref_value_map_.get(), true));
 }
 
 void TestExtensionPrefs::set_extensions_disabled(bool extensions_disabled) {
   extensions_disabled_ = extensions_disabled;
 }