Using The `scrollview` component without `widget.defs`.

[tatesuke]

According to `View Components Guide`, I need to edit `widget.defs` when using The `scrollview` component.

But I tried the below code (without editing `widget.defs`). 

<svg>
  <!-- I wrote `link`s here instead of writing it in "widget.defs" -->
  <defs>
    <link rel="import" href="/mnt/sysassets/widgets/baseview_widget.defs" />
    <link rel="import" href="/mnt/sysassets/widgets/scrollview_widget.defs" />
  </defs>
  <svg>
    <use href="#scrollview">
      <use href="#scrollview-item" display="flexible-height">
        <text y="0" />
        <text y="$" x="50%" text-anchor="middle" fill="white">1</text>
        <text y="$" x="50%" text-anchor="middle" fill="white">2</text>
        <text y="$" x="50%" text-anchor="middle" fill="white">3</text>
        ...
     </use>
    </use>
  </svg>
</svg>

I think it looks like it's working. Is there any problem with this way?