MD Settings: use custom iconset

chrome/browser/resources/settings/site_settings/site_details.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.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-icon-button/paper-icon-button.html">
+<link rel="import" href="chrome://md-settings/icons.html">
 <link rel="import" href="chrome://md-settings/settings_shared_css.html">
 <link rel="import" href="chrome://md-settings/site_settings/constants.html">
 <link rel="import" href="chrome://md-settings/site_settings/site_details_permission.html">
 <link rel="import" href="chrome://md-settings/site_settings/site_settings_behavior.html">
 <link rel="import" href="chrome://md-settings/site_settings/website_usage_private_api.html">
 
 <dom-module id="site-details">
   <link rel="import" type="css" href="site_details.css">
   <template>
     <style include="settings-shared"></style>
     <div class="settings-box block">
       <div class="horizontal layout origin-box">
         <div class="website-icon" style$="[[computeSiteIcon(site)]]"></div>
         <div class="origin flex">[[site.originForDisplay]]</div>
       </div>
       <h2 id="usage" hidden$="[[!storedData_]]">$i18n{siteSettingsUsage}</h2>
       <paper-item id="storage" hidden$="[[!storedData_]]">
         <div class="flex">[[storedData_]]</div>
-        <paper-icon-button icon="delete"
+        <paper-icon-button icon="settings:delete"
             on-tap="onClearStorage_"
             i18n-values="alt:siteSettingsDelete"></paper-icon-button>
       </paper-item>
       <h2>$i18n{siteSettingsPermissions}</h2>
       <site-details-permission site="[[site]]" id="cookies"
           category="{{ContentSettingsTypes.COOKIES}}">
       </site-details-permission>
       <site-details-permission site="[[site]]" id="javascript"
           category="{{ContentSettingsTypes.JAVASCRIPT}}">
       </site-details-permission>
@@ skipping 19 matching lines @@
         $i18n{siteSettingsClearAndReset}
       </paper-button>
     </div>
     <website-usage-private-api id="usageApi"
         website-data-usage="{{storedData_}}"
         website-storage-type="{{storageType_}}">
     </website-usage-private-api>
   </template>
   <script src="site_details.js"></script>
 </dom-module>