* Open <code>/tmp/mozilla/test/TestProtocolParent.h</code>. Look for the text "Skeleton implementation of abstract actor class."
** copy the "Header file contents" into the file <code>ipc/test-harness/TestParent.h</code>
** make the TestParent constructor and destructor public
** copy the "C++ file contents" into <code>ipc/test-harness/TestParent.cpp</code>
** globally replace the text <code>ActorImpl</code> with <code>TestParent</code> in both files.