new file mode 100644
--- /dev/null
+++ b/ipc/hal/DaemonRunnables.h
@@ -0,0 +1,808 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_ipc_DaemonRunnables_h
+#define mozilla_ipc_DaemonRunnables_h
+
+#include "mozilla/unused.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla {
+namespace ipc {
+
+//
+// Result handling
+//
+// The classes of type |DaemonResultRunnable[0..3]| transfer a result
+// handler from the I/O thread to the main thread for execution. Call
+// the methods |Create| and |Dispatch| to create or create-and-dispatch
+// a result runnable.
+//
+// You need to specify the called method. The |Create| and |Dispatch|
+// methods of |DaemonResultRunnable[1..3]| receive an extra argument
+// for initializing the result's arguments. During creation, the result
+// runnable calls the supplied class's call operator with the result's
+// argument. This is where initialization and conversion from backend-
+// specific types is performed.
+//
+
+template <typename Obj, typename Res>
+class DaemonResultRunnable0 final : public nsRunnable
+{
+public:
+  typedef DaemonResultRunnable0<Obj, Res> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Obj* aObj, Res (Obj::*aMethod)(), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aObj, aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Obj* aObj, Res (Obj::*aMethod)(), const InitOp& aInitOp)
+  {
+    if (!aObj) {
+      return; // silently return if no result runnable has been given
+    }
+    nsRefPtr<SelfType> runnable = Create(aObj, aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    ((*mObj).*mMethod)();
+    return NS_OK;
+  }
+
+private:
+  DaemonResultRunnable0(Obj* aObj, Res (Obj::*aMethod)())
+    : mObj(aObj)
+    , mMethod(aMethod)
+  {
+    MOZ_ASSERT(mObj);
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    return aInitOp();
+  }
+
+  nsRefPtr<Obj> mObj;
+  void (Obj::*mMethod)();
+};
+
+template <typename Obj, typename Res, typename Tin1, typename Arg1>
+class DaemonResultRunnable1 final : public nsRunnable
+{
+public:
+  typedef DaemonResultRunnable1<Obj, Res, Tin1, Arg1> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Obj* aObj, Res (Obj::*aMethod)(Arg1), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aObj, aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Obj* aObj, Res (Obj::*aMethod)(Arg1), const InitOp& aInitOp)
+  {
+    if (!aObj) {
+      return; // silently return if no result runnable has been given
+    }
+    nsRefPtr<SelfType> runnable = Create(aObj, aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    ((*mObj).*mMethod)(mArg1);
+    return NS_OK;
+  }
+
+private:
+  DaemonResultRunnable1(Obj* aObj, Res (Obj::*aMethod)(Arg1))
+    : mObj(aObj)
+    , mMethod(aMethod)
+  {
+    MOZ_ASSERT(mObj);
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    return aInitOp(mArg1);
+  }
+
+  nsRefPtr<Obj> mObj;
+  Res (Obj::*mMethod)(Arg1);
+  Tin1 mArg1;
+};
+
+template <typename Obj, typename Res,
+          typename Tin1, typename Tin2, typename Tin3,
+          typename Arg1, typename Arg2, typename Arg3>
+class DaemonResultRunnable3 final : public nsRunnable
+{
+public:
+  typedef DaemonResultRunnable3<Obj, Res,
+                                Tin1, Tin2, Tin3,
+                                Arg1, Arg2, Arg3> SelfType;
+
+  template<typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Obj* aObj, Res (Obj::*aMethod)(Arg1, Arg2, Arg3),
+         const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aObj, aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template<typename InitOp>
+  static void
+  Dispatch(Obj* aObj, Res (Obj::*aMethod)(Arg1, Arg2, Arg3),
+           const InitOp& aInitOp)
+  {
+    if (!aObj) {
+      return; // silently return if no result runnable has been given
+    }
+    nsRefPtr<SelfType> runnable = Create(aObj, aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    ((*mObj).*mMethod)(mArg1, mArg2, mArg3);
+    return NS_OK;
+  }
+
+private:
+  DaemonResultRunnable3(Obj* aObj, Res (Obj::*aMethod)(Arg1, Arg2, Arg3))
+    : mObj(aObj)
+    , mMethod(aMethod)
+  {
+    MOZ_ASSERT(mObj);
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult
+  Init(const InitOp& aInitOp)
+  {
+    return aInitOp(mArg1, mArg2, mArg3);
+  }
+
+  nsRefPtr<Obj> mObj;
+  Res (Obj::*mMethod)(Arg1, Arg2, Arg3);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+};
+
+//
+// Notification handling
+//
+// The classes of type |DaemonNotificationRunnable[0..9]| transfer a
+// notification from the I/O thread to a notification handler on the
+// main thread. Call the methods |Create| and |Dispatch| to create or
+// create-and-dispatch a notification runnable.
+//
+// Like with result runnables, you need to specify the called method.
+// And like with result runnables, the |Create| and |Dispatch| methods
+// of |DaemonNotificationRunnable[1..9]| receive an extra argument
+// for initializing the notification's arguments. During creation, the
+// notification runnable calls the class's call operator with the
+// notification's argument. This is where initialization and conversion
+// from backend-specific types is performed.
+//
+
+template <typename ObjectWrapper, typename Res>
+class DaemonNotificationRunnable0 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable0<ObjectWrapper, Res> SelfType;
+
+  template<typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Res (ObjectType::*aMethod)(), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template<typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)();
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable0(Res (ObjectType::*aMethod)())
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    return aInitOp();
+  }
+
+  Res (ObjectType::*mMethod)();
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Arg1=Tin1>
+class DaemonNotificationRunnable1 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable1<ObjectWrapper, Res,
+                                      Tin1, Arg1> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Res (ObjectType::*aMethod)(Arg1), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable1(Res (ObjectType::*aMethod)(Arg1))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1);
+  Tin1 mArg1;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2,
+          typename Arg1=Tin1, typename Arg2=Tin2>
+class DaemonNotificationRunnable2 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable2<ObjectWrapper, Res,
+                                      Tin1, Tin2,
+                                      Arg1, Arg2> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Res (ObjectType::*aMethod)(Arg1, Arg2), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1, Arg2), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable2(
+    Res (ObjectType::*aMethod)(Arg1, Arg2))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1, Arg2);
+  Tin1 mArg1;
+  Tin2 mArg2;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2, typename Tin3,
+          typename Arg1=Tin1, typename Arg2=Tin2, typename Arg3=Tin3>
+class DaemonNotificationRunnable3 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable3<ObjectWrapper, Res,
+                                      Tin1, Tin2, Tin3,
+                                      Arg1, Arg2, Arg3> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType>
+  Create(Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3), const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3),
+           const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2, mArg3);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable3(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2, mArg3);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1, Arg2, Arg3);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2, typename Tin3, typename Tin4,
+          typename Arg1=Tin1, typename Arg2=Tin2,
+          typename Arg3=Tin3, typename Arg4=Tin4>
+class DaemonNotificationRunnable4 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable4<ObjectWrapper, Res,
+    Tin1, Tin2, Tin3, Tin4, Arg1, Arg2, Arg3, Arg4> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType> Create(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4),
+    const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4),
+           const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2, mArg3, mArg4);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable4(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2, mArg3, mArg4);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1, Arg2, Arg3, Arg4);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+  Tin4 mArg4;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2, typename Tin3,
+          typename Tin4, typename Tin5,
+          typename Arg1=Tin1, typename Arg2=Tin2, typename Arg3=Tin3,
+          typename Arg4=Tin4, typename Arg5=Tin5>
+class DaemonNotificationRunnable5 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable5<ObjectWrapper, Res,
+    Tin1, Tin2, Tin3, Tin4, Tin5, Arg1, Arg2, Arg3, Arg4, Arg5> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType> Create(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5),
+    const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5),
+           const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2, mArg3, mArg4, mArg5);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable5(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2, mArg3, mArg4, mArg5);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1, Arg2, Arg3, Arg4, Arg5);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+  Tin4 mArg4;
+  Tin5 mArg5;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2, typename Tin3,
+          typename Tin4, typename Tin5, typename Tin6,
+          typename Arg1=Tin1, typename Arg2=Tin2, typename Arg3=Tin3,
+          typename Arg4=Tin4, typename Arg5=Tin5, typename Arg6=Tin6>
+class DaemonNotificationRunnable6 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable6<ObjectWrapper, Res,
+    Tin1, Tin2, Tin3, Tin4, Tin5, Tin6, Arg1, Arg2, Arg3, Arg4, Arg5, Arg6>
+    SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType> Create(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6),
+    const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6),
+           const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2, mArg3, mArg4, mArg5, mArg6);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable6(
+    Res (ObjectType::*aMethod)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2, mArg3, mArg4, mArg5, mArg6);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+  Tin4 mArg4;
+  Tin5 mArg5;
+  Tin6 mArg6;
+};
+
+template <typename ObjectWrapper, typename Res,
+          typename Tin1, typename Tin2, typename Tin3,
+          typename Tin4, typename Tin5, typename Tin6,
+          typename Tin7, typename Tin8, typename Tin9,
+          typename Arg1=Tin1, typename Arg2=Tin2, typename Arg3=Tin3,
+          typename Arg4=Tin4, typename Arg5=Tin5, typename Arg6=Tin6,
+          typename Arg7=Tin7, typename Arg8=Tin8, typename Arg9=Tin9>
+class DaemonNotificationRunnable9 final : public nsRunnable
+{
+public:
+  typedef typename ObjectWrapper::ObjectType  ObjectType;
+  typedef DaemonNotificationRunnable9<ObjectWrapper, Res,
+    Tin1, Tin2, Tin3, Tin4, Tin5, Tin6, Tin7, Tin8, Tin9,
+    Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9> SelfType;
+
+  template <typename InitOp>
+  static already_AddRefed<SelfType> Create(
+    Res (ObjectType::*aMethod)(
+      Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9),
+    const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable(new SelfType(aMethod));
+    if (NS_FAILED(runnable->Init(aInitOp))) {
+      return nullptr;
+    }
+    return runnable.forget();
+  }
+
+  template <typename InitOp>
+  static void
+  Dispatch(
+    Res (ObjectType::*aMethod)(
+      Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9),
+    const InitOp& aInitOp)
+  {
+    nsRefPtr<SelfType> runnable = Create(aMethod, aInitOp);
+    if (!runnable) {
+      return;
+    }
+    unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable)));
+  }
+
+  NS_IMETHODIMP Run() override
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    ObjectType* obj = ObjectWrapper::GetInstance();
+    if (!obj) {
+      NS_WARNING("Notification handler not initialized");
+    } else {
+      ((*obj).*mMethod)(mArg1, mArg2, mArg3, mArg4,
+                        mArg5, mArg6, mArg7, mArg8, mArg9);
+    }
+    return NS_OK;
+  }
+
+private:
+  DaemonNotificationRunnable9(
+    Res (ObjectType::*aMethod)(
+      Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9))
+    : mMethod(aMethod)
+  {
+    MOZ_ASSERT(mMethod);
+  }
+
+  template<typename InitOp>
+  nsresult Init(const InitOp& aInitOp)
+  {
+    nsresult rv = aInitOp(mArg1, mArg2, mArg3, mArg4,
+                          mArg5, mArg6, mArg7, mArg8, mArg9);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    return NS_OK;
+  }
+
+  Res (ObjectType::*mMethod)(
+    Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9);
+  Tin1 mArg1;
+  Tin2 mArg2;
+  Tin3 mArg3;
+  Tin4 mArg4;
+  Tin5 mArg5;
+  Tin6 mArg6;
+  Tin7 mArg7;
+  Tin8 mArg8;
+  Tin9 mArg9;
+};
+
+}
+}
+
+#endif // mozilla_ipc_DaemonRunnables_h

--- a/ipc/hal/moz.build
+++ b/ipc/hal/moz.build
@@ -1,15 +1,16 @@
 # -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
 # vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 EXPORTS.mozilla.ipc += [
+    'DaemonRunnables.h',
     'DaemonSocket.h',
     'DaemonSocketConsumer.h',
     'DaemonSocketPDU.h'
 ]
 
 UNIFIED_SOURCES += [
     'DaemonSocket.cpp',
     'DaemonSocketConsumer.cpp',