Create the testing profile using the builder.

chrome/browser/ui/browser_command_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/browser_command_controller.h"
 
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ skipping 310 matching lines @@
   EXPECT_TRUE(chrome::IsCommandEnabled(browser(), IDC_FULLSCREEN));
 }
 
 TEST_F(BrowserCommandControllerTest,
     IncognitoModeOnSigninAllowedPrefChange) {
   TestingProfileManager testing_profile_manager(
       TestingBrowserProcess::GetGlobal());
   ASSERT_TRUE(testing_profile_manager.SetUp());
 
   // Set up a profile with an off the record profile.
-  TestingProfile* profile2 = new TestingProfile();
+  TestingProfile::Builder builder;
+  TestingProfile* profile2 = builder.Build().release();

[sky, 2013/03/08 16:08:05]

I'm not familiar with TestingPRofile::Builder, who owns profile2?

[Adrian Kuegel, 2013/03/08 16:28:54]

Build() returns a scoped_ptr. So I assume with this line I will have ownership
of profile2.
I used
chrome/browser/content_settings/content_settings_pref_provider_unittest.cc as
example (see line 156 there).

   profile2->set_incognito(true);
   TestingProfile* profile1 =
       testing_profile_manager.CreateTestingProfile("p1");
   profile2->SetOriginalProfile(profile1);
   EXPECT_EQ(profile2->GetOriginalProfile(), profile1);
   profile1->SetOffTheRecordProfile(profile2);
   // Create a new browser based on the off the record profile.
   Browser::CreateParams profile_params(profile2,
                                        chrome::HOST_DESKTOP_TYPE_NATIVE);
   scoped_ptr<Browser> browser2(
@@ skipping 21 matching lines @@
   ProfileManager* profile_manager = testing_profile_manager.profile_manager();
   chrome::BrowserCommandController command_controller(browser(),
                                                       profile_manager);
   const CommandUpdater* command_updater = command_controller.command_updater();
 
   // Check that the SYNC_SETUP command is updated on preference change.
   EXPECT_TRUE(command_updater->IsCommandEnabled(IDC_SHOW_SYNC_SETUP));
   profile()->GetPrefs()->SetBoolean(prefs::kSigninAllowed, false);
   EXPECT_FALSE(command_updater->IsCommandEnabled(IDC_SHOW_SYNC_SETUP));
 }