message: Fix requestAnimationFrame lost context in eval.
diff: define(function(require) {
  return (typeof window !== 'undefined' &&
  - (window.requestAnimationFrame
  - || window.msRequestAnimationFrame
  + ((window.requestAnimationFrame && window.requestAnimationFrame.bind(window))
  + // https://github.com/ecomfe/zrender/issues/189#issuecomment-224919809
  + || (window.msRequestAnimationFrame && window.msRequestAnimationFrame.bind(window))
  || window.mozRequestAnimationFrame
  - || window.webkitRequestAnimationFrame))
  + || window.webkitRequestAnimationFrame)
  + )
  || function (func) {
  setTimeout(func, 16);
  };
  