@Override
  protected ImageInfo getImageInfo(CloseableReference<CloseableImage> image) {
    Preconditions.checkState(CloseableReference.isValid(image));
    return image.get().getImageInfo();
  }
updateDebugOverlay updates the debug overlay. Subclasses of {@link PipelineDraweeController}
can override this method (and call <code>super</code>) to provide additional debug information.
drawee-backends/drawee-pipeline/src/main/java/com/facebook/drawee/backends/pipeline/PipelineDraweeController.java