chrome/browser/resources/options/startup_section.html

<section id="startup-section" guest-visibility="hidden">
  <h3 i18n-content="sectionTitleStartup"></h3>
  <div id="startup-section-content">
    <div class="radio controlled-setting-with-label"
        id="newtab-section-content">
      <label>
        <input type="radio" name="startup" value="5"
            pref="session.restore_on_startup"
            metric="Options_Startup_NewTab">
        <span>
          <span i18n-content="startupShowNewTab"></span>
          <span class="controlled-setting-indicator"
              pref="session.restore_on_startup" value="5"></span>
        </span>
      </label>
    </div>
    <div class="radio controlled-setting-with-label">
      <label>
        <input id="startup-restore-session" type="radio" name="startup"
            value="1" pref="session.restore_on_startup"
            metric="Options_Startup_LastSession">
        <span>
          <span i18n-content="startupRestoreLastSession"></span>
          <span class="controlled-setting-indicator"
              pref="session.restore_on_startup" value="1"></span>
        </span>
      </label>
    </div>
    <div class="radio controlled-setting-with-label">
      <label>
        <input id="startup-show-pages" type="radio" name="startup"
            pref="session.restore_on_startup"
            value="4" metric="Options_Startup_Custom">
        <span>
          <span i18n-content="startupShowPages"></span>
          <span class="controlled-setting-indicator"
              pref="session.restore_on_startup" value="4"></span>
        </span>
      </label>
      <a is="action-link" id="startup-set-pages"
          i18n-content="startupSetPages"></a>
      <span class="controlled-setting-indicator"
          pref="session.startup_urls"></span>
    </div>
  </div>
</section>