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-rw-r--r--embed/mozilla/EphySingle.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/embed/mozilla/EphySingle.h b/embed/mozilla/EphySingle.h
index ac884ffc0..5c47a5002 100644
--- a/embed/mozilla/EphySingle.h
+++ b/embed/mozilla/EphySingle.h
@@ -29,10 +29,12 @@
#include <nsCOMPtr.h>
#include <nsIObserver.h>
#include <nsIObserverService.h>
+#include <nsWeakReference.h>
#include <nsICookie.h>
#include <nsIPermission.h>
-class EphySingle : public nsIObserver
+class EphySingle : public nsIObserver,
+ public nsSupportsWeakReference
{
public:
NS_DECL_ISUPPORTS