Ensure incognito TestingProfiles are incognito for their whole lifetime.

chrome/browser/ui/bookmarks/bookmark_context_menu_controller_unittest.cc

 // Copyright (c) 2012 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/ui/bookmarks/bookmark_context_menu_controller.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 222 matching lines @@
       controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_OPEN_ALL_INCOGNITO));
   EXPECT_TRUE(controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_REMOVE));
   EXPECT_TRUE(
       controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_ADD_NEW_BOOKMARK));
   EXPECT_TRUE(
       controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_NEW_FOLDER));
 }
 
 // Tests the enabled state of open incognito.
 TEST_F(BookmarkContextMenuControllerTest, DisableIncognito) {
-  // Create an incognito Profile. It must be associated with the original
-  // Profile, so that GetOriginalProfile() works as expected.
-  TestingProfile::Builder builder;
-  builder.SetIncognito();
-  scoped_ptr<TestingProfile> testing_incognito = builder.Build();
-  testing_incognito->SetOriginalProfile(profile_.get());
-  TestingProfile* incognito = testing_incognito.get();
-  profile_->SetOffTheRecordProfile(testing_incognito.PassAs<Profile>());
+  TestingProfile* incognito =
+      TestingProfile::Builder().BuildIncognito(profile_.get());
 
   incognito->CreateBookmarkModel(true);
   BookmarkModel* model = BookmarkModelFactory::GetForProfile(incognito);
   test::WaitForBookmarkModelToLoad(model);
   AddTestData(model);
 
   std::vector<const BookmarkNode*> nodes;
   nodes.push_back(model->bookmark_bar_node()->GetChild(0));
   BookmarkContextMenuController controller(
       NULL, NULL, NULL, incognito, NULL, nodes[0]->parent(), nodes);
@@ skipping 98 matching lines @@
                         new base::FundamentalValue(false));
   EXPECT_FALSE(
       controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_SHOW_APPS_SHORTCUT));
 
   // And enabling the shortcut by policy disables the command too.
   prefs->SetManagedPref(bookmarks::prefs::kShowAppsShortcutInBookmarkBar,
                         new base::FundamentalValue(true));
   EXPECT_FALSE(
       controller.IsCommandIdEnabled(IDC_BOOKMARK_BAR_SHOW_APPS_SHORTCUT));
 }