am 461cef5d: Merge "As we don\'t support over scroll any more, we need to pin the (x,y) if we handle the drag after the plugin choose not to handle the event." into froyo

Merge commit '461cef5d209fd072c82f6a70eb106e4690b7ef97' into froyo-plus-aosp

* commit '461cef5d209fd072c82f6a70eb106e4690b7ef97':
  As we don't support over scroll any more, we need