In some cases the mForm pointer doesn't get set because of the way the content can be constructed

and added via the DOM. So before it is used try to find and set its value again.
Bug 62799 r=harishd sr=attinasi

content/html/content/src/nsGenericHTMLElement.cpp

@@ -3828,6 +3828,15 @@ nsGenericHTMLLeafFormElement::GetForm(nsIDOMHTMLFormElement** aForm)
   NS_ENSURE_ARG_POINTER(aForm);
   *aForm = nsnull;
 
+  // This is here because radios can be created via script
+  // and depending on how the content in the script is constructed
+  // none of the code paths that set up the mForm may get called
+  // So this is a last stab effort to get the form before somebody 
+  // uses the radiobutton. Bug 62799
+  if (mForm == nsnull) {
+    FindFormParent(mParent, this); // ignore returned result
+  }
+
   if (mForm) {
     mForm->QueryInterface(NS_GET_IID(nsIDOMHTMLFormElement), (void**)aForm);
   }