diff -r 000000000000 -r 6474c204b198 widget/windows/nsAppShell.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/windows/nsAppShell.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
+/* 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 nsAppShell_h__
+#define nsAppShell_h__
+
+#include "nsBaseAppShell.h"
+#include <windows.h>
+#include "mozilla/TimeStamp.h"
+#include "mozilla/Mutex.h"
+
+// The maximum time we allow before forcing a native event callback.
+// In seconds.
+#define NATIVE_EVENT_STARVATION_LIMIT 1
+
+/**
+ * Native Win32 Application shell wrapper
+ */
+class nsAppShell : public nsBaseAppShell
+{
+public:
+  nsAppShell() :
+    mEventWnd(nullptr),
+    mNativeCallbackPending(false),
+    mLastNativeEventScheduledMutex("nsAppShell::mLastNativeEventScheduledMutex")
+  {}
+  typedef mozilla::TimeStamp TimeStamp;
+  typedef mozilla::Mutex Mutex;
+
+  nsresult Init();
+  void DoProcessMoreGeckoEvents();
+
+  static UINT GetTaskbarButtonCreatedMessage();
+
+protected:
+  NS_IMETHOD Run();
+  NS_IMETHOD Exit();
+  virtual void ScheduleNativeEventCallback();
+  virtual bool ProcessNextNativeEvent(bool mayWait);
+  virtual ~nsAppShell();
+
+  static LRESULT CALLBACK EventWindowProc(HWND, UINT, WPARAM, LPARAM);
+
+protected:
+  HWND mEventWnd;
+  bool mNativeCallbackPending;
+
+  Mutex mLastNativeEventScheduledMutex;
+  TimeStamp mLastNativeEventScheduled;
+};
+
+#endif // nsAppShell_h__