Extract similar code into SetJobObjectAsKillOnJobClose()

net/test/test_server_win.cc

Index: net/test/test_server_win.cc
diff --git a/net/test/test_server_win.cc b/net/test/test_server_win.cc
index ee62d1dfdc9af7502bb68843786d3d759b9d36e2..ab0ab49abcf7f6f2604ba56c63d82db16c0a77ef 100644
--- a/net/test/test_server_win.cc
+++ b/net/test/test_server_win.cc
@@ -132,11 +132,7 @@ bool TestServer::LaunchPython(const FilePath& testserver_path) {
     return false;
   }
 
-  JOBOBJECT_EXTENDED_LIMIT_INFORMATION limit_info = {0};
-  limit_info.BasicLimitInformation.LimitFlags =
-      JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE;
-  if (0 == SetInformationJobObject(job_handle_.Get(),
-    JobObjectExtendedLimitInformation, &limit_info, sizeof(limit_info))) {
+  if (!SetJobObjectAsKillOnJoClose(job_handle_.Get())) {
     LOG(ERROR) << "Could not SetInformationJobObject.";
     return false;
   }