Bug 339565. Google.com textfield shows unexpectedly with GOK. Forgot to make one change requested by Neil. Original patch by Nian Liu, r=aaronlev, sr=neil

accessible/src/base/nsAccessible.cpp

@@ -2241,7 +2241,7 @@ void nsAccessible::DoCommandCallback(nsITimer *aTimer, void *aClosure)
     if (!doc) {
       return;
     }
-    nsIPresShell *presShell = doc->GetShellAt(0);
+    nsCOMPtr<nsIPresShell> presShell = doc->GetShellAt(0);
     nsPIDOMWindow *outerWindow = doc->GetWindow();
     if (presShell && outerWindow) {
       nsAutoPopupStatePusher popupStatePusher(outerWindow, openAllowed);