Update chrome://device-emulator with newer Polymer guidelines

chrome/browser/resources/chromeos/emulator/audio_settings.html

-<link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/av-icons.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/iron-icons.html">
+<link rel="import" href="chrome://resources/html/polymer.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout-classes.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable-behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.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-dialog/paper-dialog.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-input/paper-input.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-radio-button/paper-radio-button.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-radio-group/paper-radio-group.html">
+<link rel="import" href="icons.html">
+<link rel="import" href="shared_styles.html">
 
 <dom-module id="audio-settings">
-  <link rel="import" type="css" href="shared_styles.css">
   <template>
-    <paper-dialog on-iron-overlay-opened="editDialogOpened" modal
-        id="editModal">
+    <!-- TODO(michaelpg): Wrap the line below to fit within the 80-char limit.
+         See https://github.com/Polymer/polymer/pull/3668. -->
+    <style include="device-emulator-shared-styles iron-flex iron-flex-alignment iron-positioning">
+    </style>
+    <paper-dialog with-backdrop id="editDialog">
       <div class="element-label">[[currentEditableObject.deviceName]]</div>
       <div>
         <form>
           <div class="form-field-section">
             <paper-input value="{{currentEditableObject.deviceName}}"
                 label="Device Name"></paper-input>
             <paper-input value="{{currentEditableObject.name}}"
                 label="Tray Name"></paper-input>
             <paper-input value="{{currentEditableObject.id}}"
                 label="ID" disabled></paper-input>
           </div>
           <div class="form-field-section">
             <span class="toggle-button-label">Is Input</span>
             <paper-checkbox
                 checked="{{currentEditableObject.isInput}}"></paper-checkbox>
           </div>
           <div class="form-field-section">
             <span class="toggle-button-label">Active</span>
             <paper-checkbox
                 checked="{{currentEditableObject.active}}"></paper-checkbox>
           </div>
           <div class="form-field-section">
             <div class="form-label">Audio Type</div>
             <paper-radio-group class="device-class-group"
                 selected="{{currentEditableObject.type}}">
               <template is="dom-repeat"
                   items="[[nodeTypeOptions]]" as="option">
-                <paper-radio-button name="[[option.type]]"
-                    >[[option.name]]</paper-radio-button>
+                <paper-radio-button name="[[option.type]]">
+                  [[option.name]]
+                </paper-radio-button>
               </template>
             </paper-radio-group>
           </div>
         </form>
       </div>
       <div class="buttons">
         <paper-button on-click="insertEditedAudioNode"
             dialog-dismiss>Done</paper-button>
       </div>
     </paper-dialog>
 
     <div class="layout vertical">
       <div class="element-label">
-        <paper-icon-button icon="av:volume-up"></paper-icon-button>
-        <span>[[title]]</span>
+        <paper-icon-button icon="device-emulator:volume-up"></paper-icon-button>
+        Audio
       </div>
       <table class="devices-table">
         <tbody>
           <tr class="table-section-header">
             <td colspan="2">Devices</td>
             <td class="centered-cell-label">Is Input</td>
             <td class="centered-cell-label">Active</td>
           </tr>
           <template is="dom-repeat" items="[[nodes]]">
             <tr>
               <td class="alias-cell">[[item.deviceName]]</td>
               <td class="icon-cell">
-                <paper-icon-button icon="content-copy" data-predefined="false"
-                    on-click="copyDevice"></paper-icon-button>
-                <paper-icon-button icon="settings" on-click="showEditModal"
-                    ></paper-icon-button>
-                <paper-icon-button icon="delete" on-click="removeAudioNode"
-                    ></paper-icon-button>
+                <paper-icon-button icon="device-emulator:content-copy"
+                    data-predefined="false" on-click="copyDevice">
+                </paper-icon-button>
+                <paper-icon-button icon="device-emulator:settings"
+                    on-click="showEditDialog">
+                </paper-icon-button>
+                <paper-icon-button icon="device-emulator:delete"
+                    on-click="removeAudioNode">
+                </paper-icon-button>
               </td>
               <td class="control-cell">
                 <paper-checkbox checked="{{item.isInput}}"
                     on-change="insertAudioNode"></paper-checkbox>
               </td>
               <td class="control-cell">
                 <paper-checkbox checked="{{item.active}}"
                     on-change="insertAudioNode"></paper-checkbox>
               </td>
             </tr>
           </template>
         </tbody>
       </table>
       <div class="add-device-container">
         <paper-button on-click="appendNewNode">
           Add Node
         </paper-button>
       </div>
     </div>
   </template>
   <script src="audio_settings.js"></script>
 </dom-module>