Bring back the domain gating check for settings protection.

chrome/browser/prefs/tracked/pref_hash_browsertest.cc

 // Copyright 2014 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 <string>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_file_value_serializer.h"
@@ skipping 210 matching lines @@
         unprotected_prefs_serializer.Serialize(*unprotected_preferences));
 
     if (protected_preferences) {
       JSONFileValueSerializer protected_prefs_serializer(protected_pref_file);
       EXPECT_TRUE(protected_prefs_serializer.Serialize(*protected_preferences));
     }
 
     return true;
   }
 
+  void SetUpInProcessBrowserTestFixture() override {
+    ExtensionBrowserTest::SetUpInProcessBrowserTestFixture();
+
+    // Bots are on a domain, turn off the domain check for settings hardening in
+    // order to be able to test all SettingsEnforcement groups.
+    chrome_prefs::DisableDomainCheckForTesting();
+  }
+
   // In the PRE_ test, find the number of tracked preferences that were
   // initialized and save it to a file to be read back in the main test and used
   // as the total number of tracked preferences.
   void SetUpOnMainThread() override {
     ExtensionBrowserTest::SetUpOnMainThread();
 
     // File in which the PRE_ test will save the number of tracked preferences
     // on this platform.
     const char kNumTrackedPrefFilename[] = "NumTrackedPrefs";
 
@@ skipping 669 matching lines @@
                   "Settings.TrackedPreferenceNullInitialized", ALLOW_NONE));
     EXPECT_EQ(
         0,
         GetTrackedPrefHistogramCount(
             "Settings.TrackedPreferenceMigratedLegacyDeviceId", ALLOW_NONE));
   }
 };
 
 PREF_HASH_BROWSER_TEST(PrefHashBrowserTestUntrustedAdditionToPrefsAfterWipe,
                        UntrustedAdditionToPrefsAfterWipe);