MD Settings: Make all HTML import href's relative.

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/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="/languages_page/add_languages_dialog.html">
-<link rel="import" href="/languages_page/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">
-<link rel="import" href="/settings_page/settings_subpage.html">
-<link rel="import" href="/settings_shared_css.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">
+<link rel="import" href="../settings_page/settings_subpage.html">
+<link rel="import" href="../settings_shared_css.html">
 
 <if expr="not is_macosx">
 <link rel="import" href="edit_dictionary_page.html">
 </if>
 
 <if expr="chromeos">
 <link rel="import" href="chrome://resources/html/chromeos/ui_account_tweaks.html">
-<link rel="import" href="/languages_page/manage_input_methods_page.html">
+<link rel="import" href="manage_input_methods_page.html">
 </if>
 
 <dom-module id="settings-languages-page">
   <template>
     <style include="settings-shared action-link">
       #languagesCollapse .list-item.selected {
         min-height: var(--settings-row-two-line-min-height);
       }
 
       .explain-selected {
@@ skipping 246 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>