Fix bug 868739 - Use forwards instead of includes. r=mmecca

calendar/providers/wcap/public/calIWcapCalendar.idl

@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "calICalendar.idl"
-#include "calIDateTime.idl"
+interface calIDateTime;
 interface calIWcapSession;
 
 /** Adds WCAP specific capabilities to calICalendar.

calendar/providers/wcap/public/calIWcapSession.idl

@@ -2,9 +2,11 @@
  * 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 "calIWcapCalendar.idl"
-#include "calIDateTime.idl"
-#include "calIOperation.idl"
+#include "nsISupports.idl"
+
+interface calIWcapCalendar;
+interface nsIURI;
+
 
 /**
  * WCAP session.