Bug 712773 - Support vibrate on long-press. r=wesj

--HG--
extra : rebase_source : d0b78558a2afdee088cba0e06763a83aac086d94

mobile/android/chrome/content/browser.js

@@ -1356,6 +1356,8 @@ var NativeWindow = {
       if (aEvent.defaultPrevented)
         return;
 
+      Haptic.performSimpleAction(Haptic.LongPress);
+
       let popupNode = aEvent.originalTarget;
       let title = "";
       if (popupNode.hasAttribute("title")) {