v id="secondaryToolbarButtonContainer">
          <button id="secondaryPresentationMode" class="secondaryToolbarButton presentationMode visibleLargeView"
            title="Switch to Presentation Mode" tabindex="51" data-l10n-id="presentation_mode">
            <span data-l10n-id="presentation_mode_label">Presentation Mode</span>
          </button>

          <button id="secondaryOpenFile" class="secondaryToolbarButton openFile visibleLargeView" title="Open File"
            tabindex="52" data-l10n-id="ope