wrapFunc = function(e) {
    if (thisObject) {
      func.call(thisObject, e);
    } else {
      func(e);
    }
  }
Bind an event to a function call.  Handles multitouch events by using the
coordinates of the first changed touch, and doesn't do any safety checks for
simultaneous event processing.
@deprecated in favor of bindEventWithChecks_, but preserved for external
users.
@param {!EventTarget} node Node upon which to listen.
@param {string} name Event name to listen to (e.g. 'mousedown').
@param {Object} thisObject The value of 'this' in the function.
@param {!Function} func Function to call when event is triggered.
@return {!Array.<!Array>} Opaque data that can be passed to unbindEvent_.
@private