CrOS Settings: Add skeleton page for multidevice section.

chrome/browser/resources/settings/settings_menu/settings_menu.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-selector/iron-selector.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="../icons.html">
 <link rel="import" href="../route.html">
@@ skipping 144 matching lines @@
             $i18n{languagesPageTitle}
           </a>
           <a href="/downloads">
             <iron-icon icon="cr:file-download"></iron-icon>
             $i18n{downloadsPageTitle}
           </a>
           <a href="/printing">
             <iron-icon icon="cr:print"></iron-icon>
             $i18n{printingPageTitle}
           </a>
+<if expr="chromeos">
+          <a href="/multidevice" hidden="[[!showMultidevice]]">
+            <iron-icon icon="settings:sync"></iron-icon>
+            $i18n{multidevicePageTitle}
+          </a>
+</if>
           <a href="/accessibility">
             <iron-icon icon="settings:accessibility"></iron-icon>
             $i18n{a11yPageTitle}
           </a>
 <if expr="not chromeos">
           <a href="/system">
             <iron-icon icon="settings:build"></iron-icon>
             $i18n{systemPageTitle}
           </a>
 </if>
           <a href="/reset" hidden="[[!pageVisibility.reset]]">
             <iron-icon icon="settings:restore"></iron-icon>
             $i18n{resetPageTitle}
           </a>
         </iron-selector>
       </iron-collapse>
       <div class="separator"></div>
       <a id="about-menu" href="/help">$i18n{aboutPageTitle}</a>
     </iron-selector>
   </template>
   <script src="settings_menu.js"></script>
 </dom-module>