Move display_service_unittests to services_unittests.

services/service_manager/public/cpp/test/common_initialization.h

+// Copyright 2017 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 SERVICES_SERVICE_MANAGER_PUBLIC_CPP_TEST_COMMON_INITIALIZATION_H_
+#define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_TEST_COMMON_INITIALIZATION_H_
+
+#include "base/test/launcher/unit_test_launcher.h"
+
+namespace service_manager {
+
+// Does common mojo edk/catalog initialization that needs to happen in all
+// service tests. This method exists so that different test runners can use
+// different base::TestSuite instances, but still use the common mojo
+// initialization.
+int InitializeAndLaunchUnitTests(
+    int argc,
+    char** argv,
+    const base::RunTestSuiteCallback& run_test_suite);
+
+}  // namespace service_manager
+
+#endif  // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_TEST_COMMON_INITIALIZATION_H_