Bring back the domain gating check for settings protection.

chrome/browser/extensions/extension_startup_browsertest.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 <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
@@ skipping 79 matching lines @@
       src_dir = src_dir.AppendASCII("extensions").AppendASCII("good");
 
       base::CopyFile(src_dir.Append(chrome::kPreferencesFilename),
                      preferences_file_);
       base::CopyDirectory(src_dir.AppendASCII("Extensions"),
                           profile_dir, true);  // recursive
     }
     return true;
   }
 
+  void SetUpInProcessBrowserTestFixture() override {
+    InProcessBrowserTest::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();
+  }
+
   void TearDown() override {
     EXPECT_TRUE(base::DeleteFile(preferences_file_, false));
 
     // TODO(phajdan.jr): Check return values of the functions below, carefully.
     base::DeleteFile(user_scripts_dir_, true);
     base::DeleteFile(extensions_dir_, true);
 
     InProcessBrowserTest::TearDown();
   }
 
@@ skipping 185 matching lines @@
         .AppendASCII("extensions")
         .AppendASCII("app2");
     load_extensions_.push_back(fourth_extension_path.value());
   }
 };
 
 IN_PROC_BROWSER_TEST_F(ExtensionsLoadMultipleTest, Test) {
   WaitForServicesToStart(4, true);
   TestInjection(true, true);
 }