diff -r 000000000000 -r 6474c204b198 ipc/glue/WindowsMessageLoop.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/glue/WindowsMessageLoop.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,170 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=2 et :
+ */
+/* 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 IPC_GLUE_WINDOWSMESSAGELOOP_H
+#define IPC_GLUE_WINDOWSMESSAGELOOP_H
+
+// This file is only meant to compile on windows
+#include <windows.h>
+
+#include "base/basictypes.h"
+#include "nsISupportsImpl.h"
+
+namespace mozilla {
+namespace ipc {
+namespace windows {
+
+void InitUIThread();
+
+class DeferredMessage
+{
+public:
+  DeferredMessage()
+  {
+    MOZ_COUNT_CTOR(DeferredMessage);
+  }
+
+  virtual ~DeferredMessage()
+  {
+    MOZ_COUNT_DTOR(DeferredMessage);
+  }
+
+  virtual void Run() = 0;
+};
+
+// Uses CallWndProc to deliver a message at a later time. Messages faked with
+// this class must not have pointers in their wParam or lParam members as they
+// may be invalid by the time the message actually runs.
+class DeferredSendMessage : public DeferredMessage
+{
+public:
+  DeferredSendMessage(HWND aHWnd,
+                      UINT aMessage,
+                      WPARAM aWParam,
+                      LPARAM aLParam)
+    : hWnd(aHWnd),
+      message(aMessage),
+      wParam(aWParam),
+      lParam(aLParam)
+  { }
+
+  virtual void Run();
+
+protected:
+    HWND hWnd;
+    UINT message;
+    WPARAM wParam;
+    LPARAM lParam;
+};
+
+// Uses RedrawWindow to fake several painting-related messages. Flags passed
+// to the constructor go directly to RedrawWindow.
+class DeferredRedrawMessage : public DeferredMessage
+{
+public:
+  DeferredRedrawMessage(HWND aHWnd,
+                        UINT aFlags)
+    : hWnd(aHWnd),
+      flags(aFlags)
+  { }
+
+  virtual void Run();
+
+private:
+  HWND hWnd;
+  UINT flags;
+};
+
+// Uses UpdateWindow to generate a WM_PAINT message if needed.
+class DeferredUpdateMessage : public DeferredMessage
+{
+public:
+  DeferredUpdateMessage(HWND aHWnd);
+
+  virtual void Run();
+
+private:
+  HWND mWnd;
+  RECT mUpdateRect;
+};
+
+// This class duplicates a string that may exist in the lParam member of the
+// message.
+class DeferredSettingChangeMessage : public DeferredSendMessage
+{
+public:
+  DeferredSettingChangeMessage(HWND aHWnd,
+                               UINT aMessage,
+                               WPARAM aWParam,
+                               LPARAM aLParam);
+
+  ~DeferredSettingChangeMessage();
+private:
+  wchar_t* lParamString;
+};
+
+// This class uses SetWindowPos to fake various size-related messages. Flags
+// passed to the constructor go straight through to SetWindowPos.
+class DeferredWindowPosMessage : public DeferredMessage
+{
+public:
+  DeferredWindowPosMessage(HWND aHWnd,
+                           LPARAM aLParam,
+                           bool aForCalcSize = false,
+                           WPARAM aWParam = 0);
+
+  virtual void Run();
+
+private:
+  WINDOWPOS windowPos;
+};
+
+// This class duplicates a data buffer for a WM_COPYDATA message.
+class DeferredCopyDataMessage : public DeferredSendMessage
+{
+public:
+  DeferredCopyDataMessage(HWND aHWnd,
+                          UINT aMessage,
+                          WPARAM aWParam,
+                          LPARAM aLParam);
+
+  ~DeferredCopyDataMessage();
+private:
+  COPYDATASTRUCT copyData;
+};
+
+class DeferredStyleChangeMessage : public DeferredMessage
+{
+public:
+  DeferredStyleChangeMessage(HWND aHWnd,
+                             WPARAM aWParam,
+                             LPARAM aLParam);
+
+  virtual void Run();
+
+private:
+  HWND hWnd;
+  int index;
+  LONG_PTR style;
+};
+
+class DeferredSetIconMessage : public DeferredSendMessage
+{
+public:
+  DeferredSetIconMessage(HWND aHWnd,
+                         UINT aMessage,
+                         WPARAM aWParam,
+                         LPARAM aLParam);
+
+  virtual void Run();
+};
+
+} /* namespace windows */
+} /* namespace ipc */
+} /* namespace mozilla */
+
+#endif /* IPC_GLUE_WINDOWSMESSAGELOOP_H */