diff --git a/mozilla/netwerk/cache/src/nsCacheDevice.h b/mozilla/netwerk/cache/src/nsCacheDevice.h
index 60bc88f1928..9f434dbe4ee 100644
--- a/mozilla/netwerk/cache/src/nsCacheDevice.h
+++ b/mozilla/netwerk/cache/src/nsCacheDevice.h
@@ -35,9 +35,13 @@ class nsCacheEntry;
 
 class nsCacheDevice {
 public:
-    virtual const char *  GetDeviceID(void) = 0;
+    virtual ~nsCacheDevice() {}
+
+    virtual nsresult Init() = 0;
+
+    virtual const char *   GetDeviceID(void) = 0;
+    virtual nsCacheEntry * FindEntry( nsCString * key ) = 0;
 
-    virtual nsresult ActivateEntryIfFound( nsCacheEntry * entry ) = 0;
     virtual nsresult DeactivateEntry( nsCacheEntry * entry ) = 0;
     virtual nsresult BindEntry( nsCacheEntry * entry ) = 0;