Now command line flag does not beat Policy

chrome/browser/policy/policy_startup_browsertest.cc

+// Copyright 2015 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.
+
+// Warning: this file will not be compiled for ChromeOS because the test
+// PolicyMakeDefaultBrowserTest is not valid for this platform.
+
+#include "base/command_line.h"
+#include "chrome/common/chrome_result_codes.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "components/policy/core/browser/browser_policy_connector.h"
+#include "components/policy/core/common/mock_configuration_policy_provider.h"
+#include "components/policy/core/common/policy_map.h"
+#include "policy/policy_constants.h"
+
+class PolicyMakeDefaultBrowserTest : public InProcessBrowserTest {
+ protected:
+  PolicyMakeDefaultBrowserTest() : InProcessBrowserTest() {
+    set_expected_exit_code(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
+  }
+
+  void SetUpInProcessBrowserTestFixture() override {
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kMakeDefaultBrowser);
+    EXPECT_CALL(provider_, IsInitializationComplete(testing::_))
+               .WillRepeatedly(testing::Return(true));
+
+    policy::BrowserPolicyConnector::SetPolicyProviderForTesting(&provider_);
+
+    policy::PolicyMap values;
+    values.Set(policy::key::kDefaultBrowserSettingEnabled,
+               policy::POLICY_LEVEL_MANDATORY,
+               policy::POLICY_SCOPE_MACHINE,
+               new base::FundamentalValue(false),
+               NULL);
+    provider_.UpdateChromePolicy(values);
+  }
+
+ private:
+   policy::MockConfigurationPolicyProvider provider_;
+   DISALLOW_COPY_AND_ASSIGN(PolicyMakeDefaultBrowserTest);
+};
+
+IN_PROC_BROWSER_TEST_F(PolicyMakeDefaultBrowserTest, MakeDefaultDisabled) {
+}