Adds async interface method to PersistentPrefStore.

chrome/test/testing_pref_service.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/test/testing_pref_service.h"
 
 #include "chrome/browser/policy/configuration_policy_pref_store.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/prefs/command_line_pref_store.h"
 #include "chrome/browser/prefs/default_pref_store.h"
 #include "chrome/browser/prefs/pref_notifier.h"
 #include "chrome/browser/prefs/pref_value_store.h"
 #include "chrome/browser/prefs/testing_pref_store.h"
 #include "chrome/test/testing_browser_process.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TestingPrefServiceBase::TestingPrefServiceBase(
     TestingPrefStore* managed_platform_prefs,
     TestingPrefStore* user_prefs,
     TestingPrefStore* recommended_platform_prefs)
     : PrefService(managed_platform_prefs,
                   NULL,
                   NULL,
                   NULL,
                   user_prefs,
                   recommended_platform_prefs,
                   NULL,
-                  new DefaultPrefStore(),
-                  NULL),
+                  new DefaultPrefStore()),
       managed_platform_prefs_(managed_platform_prefs),
       user_prefs_(user_prefs),
       recommended_platform_prefs_(recommended_platform_prefs) {
 }
 
 TestingPrefServiceBase::~TestingPrefServiceBase() {
 }
 
 const Value* TestingPrefServiceBase::GetManagedPref(const char* path) const {
   return GetPref(managed_platform_prefs_, path);
@@ skipping 64 matching lines @@
     : browser_process_(browser_process) {
   browser::RegisterLocalState(&local_state_);
   EXPECT_FALSE(browser_process->local_state());
   browser_process->SetLocalState(&local_state_);
 }
 
 ScopedTestingLocalState::~ScopedTestingLocalState() {
   EXPECT_EQ(&local_state_, browser_process_->local_state());
   browser_process_->SetLocalState(NULL);
 }
-