diff -r 000000000000 -r 6474c204b198 dom/bindings/Exceptions.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/bindings/Exceptions.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#ifndef mozilla_dom_Exceptions_h__
+#define mozilla_dom_Exceptions_h__
+
+// DOM exception throwing machinery (for both main thread and workers).
+
+#include <stdint.h>
+#include "jspubtd.h"
+#include "nsIException.h"
+
+class nsIStackFrame;
+template <class T>
+class already_AddRefed;
+
+namespace mozilla {
+namespace dom {
+
+class Exception;
+
+bool
+Throw(JSContext* cx, nsresult rv, const char* sz = nullptr);
+
+bool
+ThrowExceptionObject(JSContext* aCx, Exception* aException);
+
+bool
+ThrowExceptionObject(JSContext* aCx, nsIException* aException);
+
+// Create an exception object for the given nsresult and message but
+// don't set it pending on aCx.  This never returns null.
+already_AddRefed<Exception>
+CreateException(JSContext* aCx, nsresult aRv, const char* aMessage = nullptr);
+
+already_AddRefed<nsIStackFrame>
+GetCurrentJSStack();
+
+// Internal stuff not intended to be widely used.
+namespace exceptions {
+
+// aMaxDepth can be used to define a maximal depth for the stack trace. If the
+// value is -1, a default maximal depth will be selected.
+already_AddRefed<nsIStackFrame>
+CreateStack(JSContext* aCx, int32_t aMaxDepth = -1);
+
+already_AddRefed<nsIStackFrame>
+CreateStackFrameLocation(uint32_t aLanguage,
+                         const char* aFilename,
+                         const char* aFunctionName,
+                         int32_t aLineNumber,
+                         nsIStackFrame* aCaller);
+
+} // namespace exceptions
+} // namespace dom
+} // namespace mozilla
+
+#endif