--- mail/thunderbird/files/patch-mozilla-dom-events-MessageEvent.h	(nonexistent)
+++ mail/thunderbird/files/patch-mozilla-dom-events-MessageEvent.h	(working copy)
@@ -0,0 +1,12 @@ 
+--- mozilla/dom/events/MessageEvent.h.orig	2015-12-21 23:33:03.000000000 +0100
++++ mozilla/dom/events/MessageEvent.h	2016-01-23 23:42:54.823166000 +0100
+@@ -15,9 +15,6 @@ namespace mozilla {
+ namespace dom {
+ 
+ struct MessageEventInit;
+-class MessagePort;
+-class MessagePortBase;
+-class MessagePortList;
+ class OwningWindowProxyOrMessagePort;
+ 
+ /**