diff --git a/dom/public/base/nsPIDOMWindow.h b/dom/public/base/nsPIDOMWindow.h
index 7c409481c597..146406ab5b91 100644
--- a/dom/public/base/nsPIDOMWindow.h
+++ b/dom/public/base/nsPIDOMWindow.h
@@ -92,6 +92,8 @@ public:
   NS_IMETHOD SetFrameElementInternal(nsIDOMElement* aFrameElement) = 0;
 
   NS_IMETHOD IsLoadingOrRunningTimeout(PRBool* aResult) = 0;
+  NS_IMETHOD IsPopupSpamWindow(PRBool *aResult) = 0;
+  NS_IMETHOD SetPopupSpamWindow(PRBool aPopup) = 0;
 
   NS_IMETHOD SetOpenerScriptURL(nsIURI* aURI) = 0;
 };