chrome/browser/resources/chromeos/login/oobe_screen_terms_of_service.html

<div class="step right hidden tos-loading" id="terms-of-service" hidden>
  <div class="step-contents">
    <h1 id="tos-heading"></h1>
    <div id="tos-subheading"></div>
    <div id="tos-container">
      <div id="tos-content">
        <h2 id="tos-content-heading"></h2>
        <webview id="tos-content-main"></webview>
      </div>
      <div id="tos-loading">
        <div>
          <p i18n-content="termsOfServiceLoading"></p>
        </div>
      </div>
      <div id="tos-error">
        <div>
          <p i18n-content="termsOfServiceError"></p>
          <p i18n-content="termsOfServiceTryAgain"></p>
        </div>
      </div>
    </div>
  </div>
  <div id="terms-of-service-controls" class="step-controls"></div>
</div>