ttached to a <code><a href="../../../../../../com/facebook/drawee/backends/pipeline/PipelineDraweeController.html">PipelineDraweeController</a></code> to observe the image origin
 (cache, disk, network, ...) for a given controller.&nbsp;</td>
          </tr>
        <tr class=" api apilevel-" >
              <td class="jd-linkcol"><a href="../../../../../../com/facebook/drawee/backends/pipeline/info/ImagePerfDataListener.html">ImagePerfDataListener</a></td>
              <td class="jd-descrcol" width="100%"