Site Settings Desktop: Implement USB devices section.

chrome/browser/resources/settings/site_settings/protocol_handlers.html

Index: chrome/browser/resources/settings/site_settings/protocol_handlers.html
diff --git a/chrome/browser/resources/settings/site_settings/protocol_handlers.html b/chrome/browser/resources/settings/site_settings/protocol_handlers.html
index 19f7cf4d0563e628838c76505d2c1b46a9ed0b64..18100b7568cde123c5a861ab787f542a0307441f 100644
--- a/chrome/browser/resources/settings/site_settings/protocol_handlers.html
+++ b/chrome/browser/resources/settings/site_settings/protocol_handlers.html
@@ -17,12 +17,6 @@
       :host {
         display: block;
       }
-
-      .protocol {
-        -webkit-margin-start: 20px;
-        margin-bottom: 15px;
-        margin-top: 15px;
-      }
     </style>
     <div class="settings-box first two-line">
       <div class="start secondary">
@@ -33,12 +27,14 @@
     </div>
 
     <template is="dom-repeat" items="[[protocols]]" as="protocol">
-      <div class="protocol">[[protocol.protocol]]</div>
+      <div class="site-settings-header">[[protocol.protocol]]</div>
 
       <div class="list-frame menu-content vertical-list">
         <template is="dom-repeat" items="[[protocol.handlers]]">
 
           <div class="list-item">
+            <div class="favicon-image" style$="[[computeSiteIcon(item.host)]]">
+            </div>
             <div class="middle" >
               <div>[[item.host]]</div>
               <div class="secondary"