MD Settings: convert paper-icon-button to paper-icon-button-light.

chrome/browser/resources/settings/languages_page/languages_page.html

 <link rel="import" href="chrome://resources/html/action_link.html">
 <link rel="import" href="chrome://resources/html/action_link_css.html">
 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/html/cr.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_expand_button/cr_expand_button.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_lazy_render/cr_lazy_render.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="add_languages_dialog.html">
 <link rel="import" href="languages.html">
 <link rel="import" href="../lifetime_browser_proxy.html">
 <link rel="import" href="../route.html">
 <link rel="import" href="../settings_page/settings_animated_pages.html">
@@ skipping 102 matching lines @@
 </if>
                 </div>
 <if expr="chromeos or is_win">
                 <template is="dom-if" if="[[isRestartRequired_(
                         item.language.code, languages.prospectiveUILanguage)]]">
                   <paper-button on-tap="onRestartTap_">
                     $i18n{restart}
                   </paper-button>
                 </template>
 </if>
-                <paper-icon-button id="more-[[item.language.code]]"
-                    icon="cr:more-vert" on-tap="onDotsTap_"
-                    title="$i18n{moreActions}">
-                </paper-icon-button>
+                <button is="paper-icon-button-light" title="$i18n{moreActions}"
+                    id="more-[[item.language.code]]" on-tap="onDotsTap_"
+                    class="icon-more-vert">
+                </button>
               </div>
             </template>
             <div class="list-item">
               <a is="action-link" class="list-button" id="addLanguages"
                   on-tap="onAddLanguagesTap_">
                 $i18n{addLanguages}
               </a>
             </div>
           </div>
           <div class="settings-box first">
@@ skipping 166 matching lines @@
 </if>
     </settings-animated-pages>
     <template is="dom-if" if="[[showAddLanguagesDialog_]]" restamp>
       <settings-add-languages-dialog languages="{{languages}}"
           language-helper="[[languageHelper]]">
       </settings-add-languages-dialog>
     </template>
   </template>
   <script src="languages_page.js"></script>
 </dom-module>