diff -r 000000000000 -r 6474c204b198 xpcom/base/nsCrashOnException.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/base/nsCrashOnException.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+#include "nsCrashOnException.h"
+#include "nsCOMPtr.h"
+#include "nsServiceManagerUtils.h"
+
+#ifdef MOZ_CRASHREPORTER
+#include "nsICrashReporter.h"
+#endif
+
+namespace mozilla {
+
+static int ReportException(EXCEPTION_POINTERS *aExceptionInfo)
+{
+#ifdef MOZ_CRASHREPORTER
+  nsCOMPtr<nsICrashReporter> cr =
+    do_GetService("@mozilla.org/toolkit/crash-reporter;1");
+  if (cr)
+    cr->WriteMinidumpForException(aExceptionInfo);
+#endif
+  return EXCEPTION_EXECUTE_HANDLER;
+}
+
+XPCOM_API(LRESULT)
+CallWindowProcCrashProtected(WNDPROC wndProc, HWND hWnd, UINT msg,
+                            WPARAM wParam, LPARAM lParam)
+{
+  MOZ_SEH_TRY {
+    return wndProc(hWnd, msg, wParam, lParam);
+  }
+  MOZ_SEH_EXCEPT(ReportException(GetExceptionInformation())) {
+    ::TerminateProcess(::GetCurrentProcess(), 253);
+  }
+  return 0; // not reached
+}
+
+}
+