diff --git a/mozilla/dom/public/coreEvents/nsIDOMCompositionListener.h b/mozilla/dom/public/coreEvents/nsIDOMCompositionListener.h
index c7f98a6f449..1b65d64550c 100644
--- a/mozilla/dom/public/coreEvents/nsIDOMCompositionListener.h
+++ b/mozilla/dom/public/coreEvents/nsIDOMCompositionListener.h
@@ -35,8 +35,10 @@ class nsIDOMCompositionListener : public nsIDOMEventListener {
 
 public:
 
-    virtual nsresult HandleStartComposition(nsIDOMEvent* aCompositionEvent) = 0;
-	virtual nsresult HandleEndComposition(nsIDOMEvent* aCompositionEvent) = 0;
+  static const nsIID& GetIID() { static nsIID iid = NS_IDOMCOMPOSITIONLISTENER_IID; return iid; }
+
+  virtual nsresult HandleStartComposition(nsIDOMEvent* aCompositionEvent) = 0;
+  virtual nsresult HandleEndComposition(nsIDOMEvent* aCompositionEvent) = 0;
 
 };
 #endif // nsIDOMCompositionListener_h__
diff --git a/mozilla/dom/public/coreEvents/nsIDOMDragListener.h b/mozilla/dom/public/coreEvents/nsIDOMDragListener.h
index 2a1d41946f9..cb6cac77d2b 100644
--- a/mozilla/dom/public/coreEvents/nsIDOMDragListener.h
+++ b/mozilla/dom/public/coreEvents/nsIDOMDragListener.h
@@ -36,6 +36,8 @@ class nsIDOMDragListener : public nsIDOMEventListener {
 
 public:
 
+  static const nsIID& GetIID() { static nsIID iid = NS_IDOMDRAGLISTENER_IID; return iid; }
+
   /**
   * Processes a drag enter event
   * @param aMouseEvent @see nsIDOMEvent.h 
diff --git a/mozilla/dom/public/coreEvents/nsIDOMTextListener.h b/mozilla/dom/public/coreEvents/nsIDOMTextListener.h
index f2b8cba7d23..20962bf61d2 100644
--- a/mozilla/dom/public/coreEvents/nsIDOMTextListener.h
+++ b/mozilla/dom/public/coreEvents/nsIDOMTextListener.h
@@ -34,6 +34,8 @@ class nsIDOMTextListener : public nsIDOMEventListener {
 
 public:
 
+    static const nsIID& GetIID() { static nsIID iid = NS_IDOMTEXTLISTENER_IID; return iid; }
+
     virtual nsresult HandleText(nsIDOMEvent* aTextEvent) = 0;
 
 };