Introduce incognito preference settings.

chrome/browser/prefs/session_startup_pref_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/session_startup_pref.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 SessionStartupPref.
 class SessionStartupPrefTest : public testing::Test {
  public:
   virtual void SetUp() {
-    pref_service_.reset(new TestingPrefService);
+    pref_service_.reset(TestingPrefService::CreateTestingPrefService());
     SessionStartupPref::RegisterUserPrefs(pref_service_.get());
   }
 
   scoped_ptr<TestingPrefService> pref_service_;
 };
 
 TEST_F(SessionStartupPrefTest, URLListIsFixedUp) {
   ListValue* url_pref_list = new ListValue;
   url_pref_list->Set(0, Value::CreateStringValue("google.com"));
   url_pref_list->Set(1, Value::CreateStringValue("chromium.org"));
@@ skipping 23 matching lines @@
   EXPECT_EQ(3u, result.urls.size());
 
   SessionStartupPref override_test =
       SessionStartupPref::SessionStartupPref(SessionStartupPref::URLS);
   override_test.urls.push_back(GURL("dev.chromium.org"));
   SessionStartupPref::SetStartupPref(pref_service_.get(), override_test);
 
   result = SessionStartupPref::GetStartupPref(pref_service_.get());
   EXPECT_EQ(3u, result.urls.size());
 }