Remove extensions::ServiceRegistrationManager.

extensions/test/test_service_registration_manager.cc

Index: extensions/test/test_service_registration_manager.cc
diff --git a/extensions/test/test_service_registration_manager.cc b/extensions/test/test_service_registration_manager.cc
deleted file mode 100644
index b70457337ddf370a1dcf907e3e2da8a85feb5691..0000000000000000000000000000000000000000
--- a/extensions/test/test_service_registration_manager.cc
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2014 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 "extensions/test/test_service_registration_manager.h"
-
-namespace extensions {
-
-TestServiceRegistrationManager::TestServiceRegistrationManager() {
-  ServiceRegistrationManager::SetServiceRegistrationManagerForTest(this);
-}
-
-TestServiceRegistrationManager::~TestServiceRegistrationManager() {
-  ServiceRegistrationManager::SetServiceRegistrationManagerForTest(nullptr);
-}
-
-void TestServiceRegistrationManager::AddServiceToServiceRegistry(
-    content::ServiceRegistry* service_registry,
-    internal::ServiceFactoryBase* factory) {
-  auto test_factory = test_factories_.find(factory->GetName());
-  if (test_factory != test_factories_.end()) {
-    test_factory->second->Register(service_registry);
-  } else {
-    ServiceRegistrationManager::AddServiceToServiceRegistry(service_registry,
-                                                            factory);
-  }
-}
-
-}  // namespace extensions