Revert of Service Manager: Remove ServiceContext* arg from Service::OnStart()

services/service_manager/public/cpp/service_test.h

 // Copyright 2016 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_SERVICE_TEST_H_
 #define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_TEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 17 matching lines @@
 // A default implementation of Service for use in ServiceTests. Tests wishing
 // to customize this should subclass this class instead of Service,
 // otherwise they will have to call ServiceTest::OnStartCalled() to forward
 // metadata from OnStart() to the test.
 class ServiceTestClient : public Service {
  public:
   explicit ServiceTestClient(ServiceTest* test);
   ~ServiceTestClient() override;
 
  protected:
-  void OnStart() override;
+  void OnStart(ServiceContext* context) override;
   bool OnConnect(const ServiceInfo& remote_info,
                  InterfaceRegistry* registry) override;
 
  private:
   ServiceTest* test_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceTestClient);
 };
 
 class ServiceTest : public testing::Test {
@@ skipping 51 matching lines @@
 
   base::Closure initialize_called_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceTest);
 };
 
 }  // namespace test
 }  // namespace service_manager
 
 #endif  // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_TEST_H_