Introduce incognito preference settings.

chrome/browser/background_page_tracker_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 "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/background_page_tracker.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/notification_type.h"
 #include "chrome/test/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 class MockBackgroundPageTracker : public BackgroundPageTracker {
  public:
-  MockBackgroundPageTracker() {
-    BackgroundPageTracker::RegisterPrefs(&prefs_);
+  MockBackgroundPageTracker()
+      : prefs_(TestingPrefService::CreateTestingPrefService()) {
+    BackgroundPageTracker::RegisterPrefs(prefs_.get());
   }
   ~MockBackgroundPageTracker() {}
   // Overridden from BackgroundPageTracker to mock out functionality.
   virtual bool IsEnabled() { return true; }
-  virtual PrefService* GetPrefService() { return &prefs_; }
+  virtual PrefService* GetPrefService() { return prefs_.get(); }
  private:
-  TestingPrefService prefs_;
+  scoped_ptr<TestingPrefService> prefs_;
 };
 
 TEST(BackgroundPageTrackerTest, Create) {
   MockBackgroundPageTracker tracker;
   EXPECT_EQ(0, tracker.GetBackgroundPageCount());
   EXPECT_EQ(0, tracker.GetUnacknowledgedBackgroundPageCount());
 }
 
 TEST(BackgroundPageTrackerTest, OnBackgroundPageLoaded) {
   MockBackgroundPageTracker tracker;
@@ skipping 75 matching lines @@
   tracker.OnBackgroundPageLoaded(app2);
   EXPECT_EQ(2, counter.count());
   // Acknowledging pages should generate notification.
   tracker.AcknowledgeBackgroundPages();
   EXPECT_EQ(3, counter.count());
   tracker.OnBackgroundPageLoaded(app1);
   EXPECT_EQ(3, counter.count());
   tracker.OnBackgroundPageLoaded(app3);
   EXPECT_EQ(4, counter.count());
 }