chrome里面的flash视频超出了div，div上加了border-radius属性

我写了一个div，里面有一个flash视频，我想做成上边俩角是圆的，于是用了css3的border-radius属性，firefox里面很正常，视频变成圆角的样子了，可是在chrome里面却不行，flash视频超出去了。。

下边是我的代码：

CSS：

#player {
  -webkit-border-radius: 80px 80px 0 0;
  -moz-border-radius: 80px 80px 0 0;
  border-radius: 80px 80px 0 0;
  border: 2px solid #CCC;
  text-decoration: none;
  z-index: 10;
  width: 400px;
  height: 400px;
  margin: 0 auto;
  overflow: hidden;
}

#player object {
  z-index: -10;
  position: relative;
}

HTML:

<div id="player">
  <object
    width="100%"
    height="100%"
    id="movie_player"
    wmode="transparent"
    data="http://static.youku.com/v1.0.0310/v/swf/loader.swf"
    type="application/x-shockwave-flash">

    <param name="quality"  value="high">
    <param name="wmode" value="transparent">
    <param value="true" name="allowFullScreen">
    <param value="always" name="allowscriptaccess">
    <param value="VideoIDS=XNTI5NDEyNDg0&amp;ShowId=0&amp;category=91&amp;Cp=0&amp;Light=on&amp;THX=off&amp;unCookie=0&amp;frame=0&amp;pvid=1363768524981SFC&amp;Tid=0&amp;isAutoPlay=true&amp;Version=/v1.0.0844&amp;show_ce=0&amp;winType=interior&amp;Type=Folder&amp;Fid=19053499&amp;Pt=0&amp;Ob=1&amp;plchid=a&amp;embedid=AjEzMjM1MzEyMQJ3d3cueW91a3UuY29tAi8=&amp;vext=bc%3D%26pid%3D%26unCookie%3D0%26frame%3D0%26type%3D1%26fob%3D1%26fpo%3D0%26svt%3D0%26emb%3DAjEzMjM1MzEyMQJ3d3cueW91a3UuY29tAi8%3D%26dn%3D%E7%BD%91%E9%A1%B5%26hwc%3D1%26mtype%3Doth" name="flashvars">
    <param value="http://static.youku.com/v1.0.0310/v/swf/loader.swf" name="movie">

    <div class="player_html5">
      <div style="height:100%" class="picture">
        <div style="line-height:460px;">
          <span style="font-size:18px">您还没有安装flash播放器,请点击<a target="_blank" href="http://www.adobe.com/go/getflash">这里</a>安装</span>
        </div>
      </div>
    </div>

  </object>
</div>