diff -r 000000000000 -r 6474c204b198 ipc/ipdl/test/cxx/TestDesc.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/test/cxx/TestDesc.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,125 @@
+#ifndef mozilla_ipdltest_TestDesc_h
+#define mozilla_ipdltest_TestDesc_h
+
+#include "mozilla/_ipdltest/IPDLUnitTests.h"
+
+#include "mozilla/_ipdltest/PTestDescParent.h"
+#include "mozilla/_ipdltest/PTestDescChild.h"
+
+#include "mozilla/_ipdltest/PTestDescSubParent.h"
+#include "mozilla/_ipdltest/PTestDescSubChild.h"
+
+#include "mozilla/_ipdltest/PTestDescSubsubParent.h"
+#include "mozilla/_ipdltest/PTestDescSubsubChild.h"
+
+namespace mozilla {
+namespace _ipdltest {
+
+//-----------------------------------------------------------------------------
+// Top-level
+//
+class TestDescParent :
+    public PTestDescParent
+{
+public:
+    TestDescParent() { }
+    virtual ~TestDescParent() { }
+
+    static bool RunTestInProcesses() { return true; }
+    static bool RunTestInThreads() { return true; }
+
+    void Main();
+
+    virtual bool RecvOk(PTestDescSubsubParent* a) MOZ_OVERRIDE;
+
+protected:
+    virtual PTestDescSubParent* AllocPTestDescSubParent(PTestDescSubsubParent*) MOZ_OVERRIDE;
+    virtual bool DeallocPTestDescSubParent(PTestDescSubParent* actor) MOZ_OVERRIDE;
+
+    virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE
+    {
+        if (NormalShutdown != why)
+            fail("unexpected destruction!");
+        passed("ok");
+        QuitParent();
+    }
+};
+
+
+class TestDescChild :
+    public PTestDescChild
+{
+public:
+    TestDescChild() { }
+    virtual ~TestDescChild() { }
+
+protected:
+    virtual PTestDescSubChild* AllocPTestDescSubChild(PTestDescSubsubChild*) MOZ_OVERRIDE;
+
+    virtual bool DeallocPTestDescSubChild(PTestDescSubChild* actor) MOZ_OVERRIDE;
+
+    virtual bool RecvTest(PTestDescSubsubChild* a) MOZ_OVERRIDE;
+
+    virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE
+    {
+        if (NormalShutdown != why)
+            fail("unexpected destruction!");
+        QuitChild();
+    }
+};
+
+
+//-----------------------------------------------------------------------------
+// First descendent
+//
+class TestDescSubParent :
+    public PTestDescSubParent
+{
+public:
+    TestDescSubParent() { }
+    virtual ~TestDescSubParent() { }
+
+protected:
+    virtual PTestDescSubsubParent* AllocPTestDescSubsubParent() MOZ_OVERRIDE;
+
+    virtual bool DeallocPTestDescSubsubParent(PTestDescSubsubParent* actor) MOZ_OVERRIDE;
+};
+
+
+class TestDescSubChild :
+    public PTestDescSubChild
+{
+public:
+    TestDescSubChild() { }
+    virtual ~TestDescSubChild() { }
+
+protected:
+    virtual PTestDescSubsubChild* AllocPTestDescSubsubChild() MOZ_OVERRIDE;
+    virtual bool DeallocPTestDescSubsubChild(PTestDescSubsubChild* actor) MOZ_OVERRIDE;
+};
+
+
+//-----------------------------------------------------------------------------
+// Grand-descendent
+//
+class TestDescSubsubParent :
+    public PTestDescSubsubParent
+{
+public:
+    TestDescSubsubParent() { }
+    virtual ~TestDescSubsubParent() { }
+};
+
+class TestDescSubsubChild :
+    public PTestDescSubsubChild
+{
+public:
+    TestDescSubsubChild() { }
+    virtual ~TestDescSubsubChild() { }
+};
+
+
+}
+}
+
+#endif // ifndef mozilla_ipdltest_TestDesc_h