ChromeOS OOBE: switch from iron-dropdown to <select>.

chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html

Index: chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html
diff --git a/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html b/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html
index 6aa8aea0b794c31f631097e10d1dccf76bb45700..b46a0f3d099b8dd9a12609700e1c0bcaa6ee010f 100644
--- a/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html
+++ b/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.html
@@ -25,26 +25,9 @@
 <dom-module id="oobe-i18n-dropdown">
   <template>
     <link rel="stylesheet" href="oobe_i18n_dropdown.css">
-    <paper-dropdown-menu no-label-float>
-      <paper-listbox id="listboxDropdown" class="dropdown-content"
-          on-iron-select="onSelect_"
-          on-iron-deselect="onDeselect_">
-        <template is="dom-repeat" id="domRepeat" items="[[items]]">
-          <paper-item item="[[item]]" disabled="[[item.optionGroupName]]"
-              hr$="[[item.optionGroupName]]">
-            <div class="option-entry flex horizontal layout justified"
-                hidden="[[item.optionGroupName]]">
-              <div class="option-name">
-                [[item.title]]
-              </div>
-              <iron-icon icon="oobe-i18n-dropdown:check" class="selected-icon"
-                  hidden="[[!item.selected]]">
-              </iron-icon>
-            </div>
-            <div class="hr" hidden="[[!item.optionGroupName]]"></div>
-          </paper-item>
-        </template>
-      </paper-listbox>
-    </paper-dropdown-menu>
+    <div id="container" class="flex vertical layout center center-justified">
+      <select id="select"></select>
+      <span class="select-underline"></span>
+    </div>
   </template>
 </dom-module>