Beacons for tracking default browser status.

chrome/installer/util/test_app_registration_data.h

Index: chrome/installer/util/test_app_registration_data.h
diff --git a/chrome/installer/util/test_app_registration_data.h b/chrome/installer/util/test_app_registration_data.h
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+++ b/chrome/installer/util/test_app_registration_data.h
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+// 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.
+
+#ifndef CHROME_INSTALLER_UTIL_TEST_APP_REGISTRATION_DATA_H_
+#define CHROME_INSTALLER_UTIL_TEST_APP_REGISTRATION_DATA_H_
+
+#include "chrome/installer/util/app_registration_data.h"
+
+class TestAppRegistrationData : public AppRegistrationData {
+ public:
+  TestAppRegistrationData();
+  ~TestAppRegistrationData() override;
+  base::string16 GetAppGuid() const override;
+  base::string16 GetStateKey() const override;
+  base::string16 GetStateMediumKey() const override;
+  base::string16 GetVersionKey() const override;
+};
+
+#endif  // CHROME_INSTALLER_UTIL_TEST_APP_REGISTRATION_DATA_H_