Switch to direct use of OwnerSettingsServiceChromeOS::Set() in tests.

chrome/browser/chromeos/attestation/platform_verification_flow_unittest.cc

 // Copyright 2013 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/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "chrome/browser/chromeos/attestation/attestation_signed_data.pb.h"
 #include "chrome/browser/chromeos/attestation/fake_certificate.h"
 #include "chrome/browser/chromeos/attestation/platform_verification_flow.h"
 #include "chrome/browser/chromeos/login/users/mock_user_manager.h"
-#include "chrome/browser/chromeos/settings/cros_settings.h"
-#include "chrome/browser/chromeos/settings/device_settings_service.h"
-#include "chrome/browser/chromeos/settings/stub_cros_settings_provider.h"
+#include "chrome/browser/chromeos/settings/scoped_cros_settings_test_helper.h"
 #include "chrome/browser/profiles/profile_impl.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/attestation/mock_attestation_flow.h"
 #include "chromeos/cryptohome/mock_async_method_caller.h"
 #include "chromeos/dbus/fake_cryptohome_client.h"
 #include "chromeos/settings/cros_settings_names.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
@@ skipping 117 matching lines @@
     // Create a verifier for tests to call.
     verifier_ = new PlatformVerificationFlow(&mock_attestation_flow_,
                                              &mock_async_caller_,
                                              &fake_cryptohome_client_,
                                              &fake_delegate_);
 
     // Create callbacks for tests to use with verifier_.
     callback_ = base::Bind(&PlatformVerificationFlowTest::FakeChallengeCallback,
                            base::Unretained(this));
 
-    // Configure the global cros_settings.
-    CrosSettings* cros_settings = CrosSettings::Get();
-    device_settings_provider_ =
-        cros_settings->GetProvider(kAttestationForContentProtectionEnabled);
-    cros_settings->RemoveSettingsProvider(device_settings_provider_);
-    cros_settings->AddSettingsProvider(&stub_settings_provider_);
-    cros_settings->SetBoolean(kAttestationForContentProtectionEnabled, true);
-  }
-
-  void TearDown() {
-    // Restore the real DeviceSettingsProvider.
-    CrosSettings* cros_settings = CrosSettings::Get();
-    cros_settings->RemoveSettingsProvider(&stub_settings_provider_);
-    cros_settings->AddSettingsProvider(device_settings_provider_);
+    settings_helper_.ReplaceProvider(kAttestationForContentProtectionEnabled);
+    settings_helper_.SetBoolean(kAttestationForContentProtectionEnabled, true);
   }
 
   void ExpectAttestationFlow() {
     // When consent is not given or the feature is disabled, it is important
     // that there are no calls to the attestation service.  Thus, a test must
     // explicitly expect these calls or the mocks will fail the test.
 
     // Configure the mock AttestationFlow to call FakeGetCertificate.
     EXPECT_CALL(mock_attestation_flow_,
                 GetCertificate(PROFILE_CONTENT_PROTECTION_CERTIFICATE,
@@ skipping 52 matching lines @@
     return serial;
   }
 
  protected:
   base::MessageLoopForUI message_loop_;
   content::TestBrowserThread ui_thread_;
   StrictMock<MockAttestationFlow> mock_attestation_flow_;
   cryptohome::MockAsyncMethodCaller mock_async_caller_;
   CustomFakeCryptohomeClient fake_cryptohome_client_;
   FakeDelegate fake_delegate_;
-  CrosSettingsProvider* device_settings_provider_;
-  StubCrosSettingsProvider stub_settings_provider_;
-  ScopedTestDeviceSettingsService test_device_settings_service_;
-  ScopedTestCrosSettings test_cros_settings_;
+  ScopedCrosSettingsTestHelper settings_helper_;
   scoped_refptr<PlatformVerificationFlow> verifier_;
 
   // Controls result of FakeGetCertificate.
   bool certificate_success_;
   std::vector<std::string> fake_certificate_list_;
   size_t fake_certificate_index_;
 
   // Controls result of FakeSignChallenge.
   bool sign_challenge_success_;
 
@@ skipping 16 matching lines @@
 }
 
 TEST_F(PlatformVerificationFlowTest, NotPermittedByUser) {
   fake_delegate_.set_is_permitted_by_user(false);
   verifier_->ChallengePlatformKey(NULL, kTestID, kTestChallenge, callback_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(PlatformVerificationFlow::USER_REJECTED, result_);
 }
 
 TEST_F(PlatformVerificationFlowTest, FeatureDisabledByPolicy) {
-  CrosSettings::Get()->SetBoolean(kAttestationForContentProtectionEnabled,
-                                  false);
+  settings_helper_.SetBoolean(kAttestationForContentProtectionEnabled, false);
   verifier_->ChallengePlatformKey(NULL, kTestID, kTestChallenge, callback_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(PlatformVerificationFlow::POLICY_REJECTED, result_);
 }
 
 TEST_F(PlatformVerificationFlowTest, NotVerified) {
   certificate_success_ = false;
   ExpectAttestationFlow();
   verifier_->ChallengePlatformKey(NULL, kTestID, kTestChallenge, callback_);
   base::RunLoop().RunUntilIdle();
@@ skipping 46 matching lines @@
 TEST_F(PlatformVerificationFlowTest, AttestationNotPrepared) {
   fake_cryptohome_client_.set_attestation_enrolled(false);
   fake_cryptohome_client_.set_attestation_prepared(false);
   verifier_->ChallengePlatformKey(NULL, kTestID, kTestChallenge, callback_);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(PlatformVerificationFlow::PLATFORM_NOT_VERIFIED, result_);
 }
 
 }  // namespace attestation
 }  // namespace chromeos