[XForms] cannot submit with replace=instance more than one time part II. Bug 338451, patch by allan, r=doronr+bz, sr=sicking

git-svn-id: svn://10.0.0.236/trunk@200695 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/extensions/xforms/nsXFormsInstanceElement.h

@@ -49,6 +49,7 @@
 #include "nsIChannelEventSink.h"
 #include "nsIInterfaceRequestor.h"
 
+class nsIDocument;
 class nsIDOMElement;
 
 /**
@@ -88,6 +89,18 @@ private:
   NS_HIDDEN_(nsresult) CreateInstanceDocument(const nsAString &aQualifiedName);
   NS_HIDDEN_(already_AddRefed<nsIModelElementPrivate>) GetModel();
 
+  /**
+   * Replace principal for document to be the same as for the owning document.
+   *
+   * WARNING: This could lead to a security breach, and should be used with
+   * extreme care!
+   *
+   * @see https://bugzilla.mozilla.org/show_bug.cgi?id=338451
+   *
+   * @param aDoc              The document to replace principal for
+   */
+  nsresult ReplacePrincipal(nsIDocument *aDoc);
+
   nsCOMPtr<nsIDOMDocument>    mDocument;
   nsCOMPtr<nsIDOMDocument>    mOriginalDocument;
   nsIDOMElement              *mElement;