Add delete button

mailnews/base/public/nsIDOMMsgAppCore.h

@@ -9,7 +9,8 @@
 #include "nsIDOMWindow.h" /* interface nsIDOMWindow */
 #include "nsID.h" /* interface nsID */
 #include "nsIDOMBaseAppCore.h" /* interface nsIDOMBaseAppCore */
-
+#include "nsIDOMNodeList.h" /*interface nsIDOMNodeList*/
+#include "nsIDOMXULTreeElement.h" /*interface nsIDOMXULTreeElement*/
 #ifdef XPIDL_JS_STUBS
 #include "jsapi.h"
 #endif
@@ -41,6 +42,9 @@ class nsIDOMMsgAppCore : public nsIDOMBaseAppCore {
   /* void OpenURL (in string str); */
   NS_IMETHOD OpenURL(const char *str) = 0;
 
+  /* void DeleteMessage (in string str); */
+  NS_IMETHOD DeleteMessage(nsIDOMXULTreeElement *tree, nsIDOMNodeList *nodeList) = 0;
+
 #ifdef XPIDL_JS_STUBS
   static NS_EXPORT_(JSObject *) InitJSClass(JSContext *cx);
   static NS_EXPORT_(JSObject *) GetJSObject(JSContext *cx, nsIDOMMsgAppCore *priv);

mailnews/base/public/nsIDOMMsgAppCore.idl

@@ -39,6 +39,8 @@
 
 #include "nsIDOMBaseAppCore.idl"
 #include "nsIDOMWindow.idl"
+#include "nsIDOMNodeList.idl"
+#include "nsIDOMXULTreeElement.idl"
 
 [object, uuid(4f7966d0-c14f-11d2-b7f2-00805f05ffa5)]
 interface nsIDOMMsgAppCore : nsIDOMBaseAppCore {
@@ -47,6 +49,7 @@ interface nsIDOMMsgAppCore : nsIDOMBaseAppCore {
 	void Open3PaneWindow();
     void SetWindow(in nsIDOMWindow ptr);
     void OpenURL(in string str);
+    void DeleteMessage(in nsIDOMXULTreeElement tree, in nsIDOMNodeList node);
 };
 
 /* hack to make MsgAppCore visible from AppCore */