diff -r 000000000000 -r 6474c204b198 dom/interfaces/base/nsIDOMJSWindow.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/base/nsIDOMJSWindow.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* -*- Mode: IDL; 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/. */
+
+#include "domstubs.idl"
+
+[scriptable, uuid(4237c376-d637-4b6e-9f8a-1da57e867834)]
+interface nsIDOMJSWindow : nsISupports
+{
+  void                      dump(in DOMString str);
+
+  /**
+   * These methods take typeless arguments and optional arguments, the
+   * first argument is either a function or a string, the second
+   * argument must be a number (ms) and the rest of the arguments (2
+   * ... n) are passed to the callback function
+   */
+  long                      setTimeout();
+  long                      setInterval();
+
+  /**
+   * These methods take one optional argument that's the timer ID to
+   * clear. Often in existing code these methods are passed undefined,
+   * which is a nop so we need to support that as well.
+   */
+  void                      clearTimeout([optional] in long handle);
+  void                      clearInterval([optional] in long handle);
+
+  /**
+   * This method is here for backwards compatibility with 4.x only,
+   * its implementation is a no-op
+   */
+  void                      setResizable(in boolean resizable);
+
+  /**
+   * @deprecated These are old Netscape 4 methods. Do not use,
+   *             the implementation is no-op.
+   */
+  void                      captureEvents();
+  void                      releaseEvents();
+
+  /**
+   * This is the scriptable version of nsIDOMWindow::open()
+   * that takes 3 optional arguments. Its binary name is OpenJS to
+   * avoid colliding with nsIDOMWindow::open(), which has the
+   * same signature. The reason we can't have that collision is that
+   * the implementation needs to know whether it was called from JS or
+   * not.
+   *
+   * IOW, DO NOT CALL THIS FROM C++
+   */
+  [binaryname(OpenJS)] nsIDOMWindow open([optional] in DOMString url,
+                                         [optional] in DOMString name,
+                                         [optional] in DOMString options);
+
+  /**
+   * This is the scriptable version of
+   * nsIDOMWindow::openDialog() that takes 3 optional
+   * arguments, plus any additional arguments are passed on as
+   * arguments on the dialog's window object (window.arguments).
+   */
+  nsIDOMWindow              openDialog([optional] in DOMString url,
+                                       [optional] in DOMString name,
+                                       [optional] in DOMString options);
+
+  /**
+   * window.frames in Netscape 4.x and IE is just a reference to the
+   * window itself (i.e. window.frames === window), but this doesn't
+   * make sense from a generic API point of view so that's why this is
+   * JS specific.
+   *
+   * This property is "replaceable" in JavaScript.
+   */
+  readonly attribute nsIDOMWindow             frames;
+
+  [implicit_jscontext, binaryname(ScriptableContent)]
+  readonly attribute jsval                    content;
+};