diff --git a/mozilla/netwerk/cache/public/nsICache.idl b/mozilla/netwerk/cache/public/nsICache.idl
index 734d8f092bc..e9e89135b74 100644
--- a/mozilla/netwerk/cache/public/nsICache.idl
+++ b/mozilla/netwerk/cache/public/nsICache.idl
@@ -23,6 +23,8 @@
  *    Darin Fisher    <darin@netscape.com>
  */
 
+#include "nsISupports.idl"
+
 typedef long nsCacheStoragePolicy;
 typedef long nsCacheAccessMode;
 
@@ -147,5 +149,7 @@ interface nsICache
 #define NS_ERROR_CACHE_DATA_IS_NOT_STREAM   NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_NETWORK, 62)
 #define NS_ERROR_CACHE_WAIT_FOR_VALIDATION  NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_NETWORK, 63)
 #define NS_ERROR_CACHE_ENTRY_DOOMED         NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_NETWORK, 64)
+#define NS_ERROR_CACHE_READ_ACCESS_DENIED   NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_NETWORK, 65)
+#define NS_ERROR_CACHE_WRITE_ACCESS_DENIED  NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_NETWORK, 66)
 
 %}