user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml

<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder
  xmlns:ui="urn:ui:com.google.gwt.uibinder"
  xmlns:g="urn:import:com.google.gwt.user.client.ui">

  <ui:with field="res" type="com.google.gwt.user.client.ui.NativeVerticalScrollbar.UiBinderBundle"/>

  <!-- Viewport: reveals only the scrollbar from the scrollable div. -->
  <div class="{res.nativeVerticalScrollbarUi.viewport}">

    <!-- Scrollable: a scrollable div. -->
    <div ui:field="scrollable" class="{res.nativeVerticalScrollbarUi.scrollable}">

      <!-- Content: controls how far the div can be scrolled. -->
      <div
        ui:field="contentDiv" />
    </div>
  </div>
</ui:UiBinder>