Re-write many calls to WrapUnique() with MakeUnique()

services/shell/runner/child/test_native_main.cc

Index: services/shell/runner/child/test_native_main.cc
diff --git a/services/shell/runner/child/test_native_main.cc b/services/shell/runner/child/test_native_main.cc
index d1490a35645a8abc476c455b2a39e4abf77d0799..4de42ff0ef2b9453dbab7857d4908a0109067bcd 100644
--- a/services/shell/runner/child/test_native_main.cc
+++ b/services/shell/runner/child/test_native_main.cc
@@ -58,8 +58,8 @@ int TestNativeMain(shell::Service* service) {
     mojo::edk::SetParentPipeHandleFromCommandLine();
 
     base::MessageLoop loop;
-    service->set_context(base::WrapUnique(new shell::ServiceContext(
-        service, shell::GetServiceRequestFromCommandLine())));
+    service->set_context(base::MakeUnique<shell::ServiceContext>(
+        service, shell::GetServiceRequestFromCommandLine()));
     base::RunLoop().Run();
 
     mojo::edk::ShutdownIPCSupport();