Make settings page more touch friendly (font-size, checkbox, radio, adding language page).

chrome/browser/resources/options/language_add_language_overlay.html

 <div id="add-language-overlay-page" class="page" hidden>
-<if expr="pp_ifdef('chromeos')">
+<!--
+Buttons are too small for touch in the touchui builds.
+Use drop down box for touchui builds instead.
+-->
+<if expr="pp_ifdef('chromeos') and not pp_ifdef('touchui')">
   <ul id="add-language-overlay-language-list">
   </ul>
   <button id="add-language-overlay-cancel-button"
           i18n-content="cancel"></button>
 </if>
-<if expr="not pp_ifdef('chromeos')">
+<if expr="not pp_ifdef('chromeos') or pp_ifdef('touchui')">
   <h1 i18n-content="add_language_title"></h1>
   <div class="content-area">
     <label>
       <span i18n-content="add_language_select_label"></span>
       <select id="add-language-overlay-language-list"></select>
     </label>
   </div>
   <div class="action-area">
     <div class="button-strip">
       <button id="add-language-overlay-cancel-button" i18n-content="cancel">
       </button>
       <button id="add-language-overlay-ok-button" i18n-content="ok"></button>
     </div>
   </div>
 </if>
 </div>