Remove extensions::ServiceRegistrationManager.

extensions/test/test_service_registration_manager.h

-// 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.
-
-#ifndef EXTENSIONS_TEST_TEST_SERVICE_REGISTRATION_MANAGER_H_
-#define EXTENSIONS_TEST_TEST_SERVICE_REGISTRATION_MANAGER_H_
-
-#include <map>
-#include <string>
-
-#include "extensions/browser/mojo/service_registration_manager.h"
-
-namespace extensions {
-
-class TestServiceRegistrationManager : public ServiceRegistrationManager {
- public:
-  TestServiceRegistrationManager();
-  ~TestServiceRegistrationManager() override;
-
-  // Overrides an existing service factory with |factory| for testing. This
-  // does not alter the permission checks used to determine whether a service
-  // is available.
-  template <typename Interface>
-  void OverrideServiceFactoryForTest(
-      const base::Callback<void(mojo::InterfaceRequest<Interface>)>& factory) {
-    linked_ptr<internal::ServiceFactoryBase> service_factory(
-        new internal::ServiceFactory<Interface>(factory));
-    auto result = test_factories_.insert(
-        std::make_pair(Interface::Name_, service_factory));
-    DCHECK(result.second);
-  }
-
-  void AddServiceToServiceRegistry(
-      content::ServiceRegistry* service_registry,
-      internal::ServiceFactoryBase* service_factory) override;
-
- private:
-  std::map<std::string, linked_ptr<internal::ServiceFactoryBase>>
-      test_factories_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestServiceRegistrationManager);
-};
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_TEST_TEST_SERVICE_REGISTRATION_MANAGER_H_