Introduce incognito preference settings.

chrome/browser/prefs/pref_set_observer_unittest.cc

 // Copyright (c) 2010 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/prefs/pref_set_observer.h"
 #include "chrome/common/notification_details.h"
 #include "chrome/common/notification_observer_mock.h"
 #include "chrome/common/notification_source.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/testing_pref_service.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // Unit tests for PrefSetObserver.
 class PrefSetObserverTest : public testing::Test {
  public:
   virtual void SetUp() {
-    pref_service_.reset(new TestingPrefService);
+    pref_service_.reset(TestingPrefService::CreateTestingPrefService());
     pref_service_->RegisterStringPref(prefs::kHomePage, "http://google.com");
     pref_service_->RegisterBooleanPref(prefs::kHomePageIsNewTabPage, false);
     pref_service_->RegisterStringPref(prefs::kApplicationLocale, "");
   }
 
   PrefSetObserver* CreatePrefSetObserver(NotificationObserver* observer) {
     PrefSetObserver* pref_set =
         new PrefSetObserver(pref_service_.get(), observer);
     pref_set->AddPref(prefs::kHomePage);
     pref_set->AddPref(prefs::kHomePageIsNewTabPage);
@@ skipping 51 matching lines @@
                       PrefNameDetails(prefs::kHomePageIsNewTabPage)));
   pref_service_->SetUserPref(prefs::kHomePageIsNewTabPage,
                              Value::CreateBooleanValue(true));
   Mock::VerifyAndClearExpectations(&observer);
 
   EXPECT_CALL(observer, Observe(_, _, _)).Times(0);
   pref_service_->SetUserPref(prefs::kApplicationLocale,
                              Value::CreateStringValue("en_US.utf8"));
   Mock::VerifyAndClearExpectations(&observer);
 }