diff -r 000000000000 -r 6474c204b198 security/manager/boot/public/nsIBufEntropyCollector.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security/manager/boot/public/nsIBufEntropyCollector.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/* -*- 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/. */
+
+#include "nsISupports.idl"
+#include "nsIEntropyCollector.idl"
+
+[uuid(485b87a8-5dd7-4b8d-8ea8-dee53201f899)]
+interface nsIBufEntropyCollector : nsIEntropyCollector
+{
+  /**
+   * Forward the entropy collected so far to |collector| and then
+   * continue forwarding new entropy as it arrives.
+   */
+  void forwardTo(in nsIEntropyCollector collector);
+
+  /**
+   * No longer forward to a (possibly) previously remembered collector.
+   * Do buffering again.
+   */
+  void dontForward();
+};