diff -r 000000000000 -r 6474c204b198 ipc/ipdl/test/cxx/TestInterruptRaces.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/ipdl/test/cxx/TestInterruptRaces.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,129 @@
+#ifndef mozilla__ipdltest_TestInterruptRaces_h
+#define mozilla__ipdltest_TestInterruptRaces_h
+
+#include "mozilla/_ipdltest/IPDLUnitTests.h"
+
+#include "mozilla/_ipdltest/PTestInterruptRacesParent.h"
+#include "mozilla/_ipdltest/PTestInterruptRacesChild.h"
+
+namespace mozilla {
+namespace _ipdltest {
+
+mozilla::ipc::RacyInterruptPolicy
+MediateRace(const mozilla::ipc::MessageChannel::Message& parent,
+            const mozilla::ipc::MessageChannel::Message& child);
+
+class TestInterruptRacesParent :
+    public PTestInterruptRacesParent
+{
+public:
+    TestInterruptRacesParent() : mHasReply(false),
+                           mChildHasReply(false),
+                           mAnsweredParent(false)
+    { }
+    virtual ~TestInterruptRacesParent() { }
+
+    static bool RunTestInProcesses() { return true; }
+    static bool RunTestInThreads() { return true; }
+
+    void Main();
+
+protected:
+    virtual bool
+    RecvStartRace() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerRace(bool* hasRace) MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerStackFrame() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerStackFrame3() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerParent() MOZ_OVERRIDE;
+
+    virtual bool
+    RecvGetAnsweredParent(bool* answeredParent) MOZ_OVERRIDE;
+
+    virtual mozilla::ipc::RacyInterruptPolicy
+    MediateInterruptRace(const Message& parent, const Message& child) MOZ_OVERRIDE
+    {
+        return MediateRace(parent, child);
+    }
+
+    virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE
+    {
+        if (NormalShutdown != why)
+            fail("unexpected destruction!");
+        if (!(mHasReply && mChildHasReply))
+            fail("both sides should have replies!");
+        passed("ok");
+        QuitParent();
+    }
+
+private:
+    void OnRaceTime();
+
+    void Test2();
+    void Test3();
+
+    bool mHasReply;
+    bool mChildHasReply;
+    bool mAnsweredParent;
+};
+
+
+class TestInterruptRacesChild :
+    public PTestInterruptRacesChild
+{
+public:
+    TestInterruptRacesChild() : mHasReply(false) { }
+    virtual ~TestInterruptRacesChild() { }
+
+protected:
+    virtual bool
+    RecvStart() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerRace(bool* hasRace) MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerStackFrame() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerStackFrame3() MOZ_OVERRIDE;
+
+    virtual bool
+    RecvWakeup() MOZ_OVERRIDE;
+
+    virtual bool
+    RecvWakeup3() MOZ_OVERRIDE;
+
+    virtual bool
+    AnswerChild() MOZ_OVERRIDE;
+
+    virtual mozilla::ipc::RacyInterruptPolicy
+    MediateInterruptRace(const Message& parent, const Message& child) MOZ_OVERRIDE
+    {
+        return MediateRace(parent, child);
+    }
+
+    virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE
+    {
+        if (NormalShutdown != why)
+            fail("unexpected destruction!");
+        QuitChild();
+    }
+
+private:
+    bool mHasReply;
+};
+
+
+} // namespace _ipdltest
+} // namespace mozilla
+
+
+#endif // ifndef mozilla__ipdltest_TestInterruptRaces_h