diff -r 000000000000 -r 6474c204b198 xpcom/threads/nsThreadPool.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/threads/nsThreadPool.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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 nsThreadPool_h__
+#define nsThreadPool_h__
+
+#include "nsIThreadPool.h"
+#include "nsIThread.h"
+#include "nsIRunnable.h"
+#include "nsEventQueue.h"
+#include "nsCOMArray.h"
+#include "nsCOMPtr.h"
+#include "nsThreadUtils.h"
+#include "mozilla/Attributes.h"
+
+class nsThreadPool MOZ_FINAL : public nsIThreadPool,
+                               public nsIRunnable
+{
+public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIEVENTTARGET
+  NS_DECL_NSITHREADPOOL
+  NS_DECL_NSIRUNNABLE
+
+  nsThreadPool();
+
+private:
+  ~nsThreadPool();
+
+  void ShutdownThread(nsIThread *thread);
+  nsresult PutEvent(nsIRunnable *event);
+
+  nsCOMArray<nsIThread> mThreads;
+  nsEventQueue          mEvents;
+  uint32_t              mThreadLimit;
+  uint32_t              mIdleThreadLimit;
+  uint32_t              mIdleThreadTimeout;
+  uint32_t              mIdleCount;
+  uint32_t              mStackSize;
+  nsCOMPtr<nsIThreadPoolListener> mListener;
+  bool                  mShutdown;
+  nsCString             mName;
+  nsThreadPoolNaming    mThreadNaming;
+};
+
+#define NS_THREADPOOL_CID                          \
+{ /* 547ec2a8-315e-4ec4-888e-6e4264fe90eb */       \
+  0x547ec2a8,                                      \
+  0x315e,                                          \
+  0x4ec4,                                          \
+  {0x88, 0x8e, 0x6e, 0x42, 0x64, 0xfe, 0x90, 0xeb} \
+}
+
+#endif  // nsThreadPool_h__