Prevent new Browser windows from violating the IncognitoModeAvailability policy.

chrome/browser/ui/browser_browsertest.cc

Index: chrome/browser/ui/browser_browsertest.cc
diff --git a/chrome/browser/ui/browser_browsertest.cc b/chrome/browser/ui/browser_browsertest.cc
index 1a9793fd9a89ebcefd437f30be64938541e30f6f..e78b8180251757d59f123268b67c0c1c0f6d5f73 100644
--- a/chrome/browser/ui/browser_browsertest.cc
+++ b/chrome/browser/ui/browser_browsertest.cc
@@ -1353,8 +1353,9 @@ IN_PROC_BROWSER_TEST_F(BrowserTest, DisableMenuItemsWhenIncognitoIsForced) {
 
   // Create a new browser.
   Browser* new_browser =
-      new Browser(Browser::CreateParams(browser()->profile(),
-                                        browser()->host_desktop_type()));
+      new Browser(Browser::CreateParams(
+          browser()->profile()->GetOffTheRecordProfile(),
+          browser()->host_desktop_type()));
   CommandUpdater* new_command_updater =
       new_browser->command_controller()->command_updater();
   // It should have Bookmarks & Settings commands disabled by default.