diff -r 000000000000 -r 6474c204b198 toolkit/components/downloads/nsIDownloadProgressListener.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/downloads/nsIDownloadProgressListener.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+/* A minimally extended progress listener used by download manager
+ * to update its default UI.  This is implemented in nsDownloadProgressListener.js.
+ * See nsIWebProgressListener for documentation, and use its constants.  This isn't
+ * too pretty, but the alternative is having this extend nsIWebProgressListener and
+ * adding an |item| attribute, which would mean a separate nsIDownloadProgressListener
+ * for every nsIDownloadItem, which is a waste...
+ */
+
+#include "nsISupports.idl"
+
+interface nsIWebProgress;
+interface nsIRequest;
+interface nsIURI;
+interface nsIDownload;
+interface nsIDOMDocument;
+
+[scriptable, uuid(7acb07ea-cac2-4c15-a3ad-23aaa789ed51)]
+interface nsIDownloadProgressListener : nsISupports {
+
+ /**
+  * document
+  * The document of the download manager frontend.
+  */
+  
+  attribute nsIDOMDocument document;
+
+ /**
+  * Dispatched whenever the state of the download changes.
+  *
+  * @param aState The previous download sate.
+  * @param aDownload The download object.
+  * @see nsIDownloadManager for download states.
+  */
+  void onDownloadStateChange(in short aState, in nsIDownload aDownload);
+
+  void onStateChange(in nsIWebProgress aWebProgress,
+                     in nsIRequest aRequest,
+                     in unsigned long aStateFlags,
+                     in nsresult aStatus,
+                     in nsIDownload aDownload);
+
+  void onProgressChange(in nsIWebProgress aWebProgress,
+                        in nsIRequest aRequest,
+                        in long long aCurSelfProgress,
+                        in long long aMaxSelfProgress,
+                        in long long aCurTotalProgress,
+                        in long long aMaxTotalProgress,
+                        in nsIDownload aDownload);
+
+  void onSecurityChange(in nsIWebProgress aWebProgress,
+                        in nsIRequest aRequest,
+                        in unsigned long aState,
+                        in nsIDownload aDownload);
+
+};