Make Service own ServiceContext.

services/shell/runner/child/test_native_main.cc

 // 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.
 
 #include "services/shell/runner/child/test_native_main.h"
 
 #include <utility>
 
 #include "base/debug/stack_trace.h"
 #include "base/macros.h"
@@ skipping 40 matching lines @@
 
     ProcessDelegate process_delegate;
     base::Thread io_thread("io_thread");
     base::Thread::Options io_thread_options(base::MessageLoop::TYPE_IO, 0);
     CHECK(io_thread.StartWithOptions(io_thread_options));
 
     mojo::edk::InitIPCSupport(&process_delegate, io_thread.task_runner());
     mojo::edk::SetParentPipeHandleFromCommandLine();
 
     base::MessageLoop loop;
-    shell::ServiceContext impl(service,
-                                shell::GetServiceRequestFromCommandLine());
+    service->set_context(base::WrapUnique(new shell::ServiceContext(
+        service, shell::GetServiceRequestFromCommandLine())));
     base::RunLoop().Run();
 
     mojo::edk::ShutdownIPCSupport();
+
+    service->set_context(std::unique_ptr<ServiceContext>());
   }
 
   return 0;
 }
 
 }  // namespace shell