If ethernet is not available (i.e. no wired nic), don't show ethernet in stat...

chrome/browser/resources/options/chromeos_internet_options_page.css

 /*
  * TODO(xiyuan): Remove the section overrides when options_page.css uses the
  * new style.
  */
 #internetPage > section {
   display: block;
 }
 
 #internetPage > section > h3 {
   font-size: 100%;
   width: auto;
 }
 
+#internetPage > section[hidden] {
+  display: none;
+}
+
 .networks {
   -webkit-margin-start: 15px;
   padding: 2px;
 }
 
 .network-item {
   -webkit-box-align: center;
   -webkit-padding-start: 30px;
   border: 1px solid rgba(255,255,255,0); /* transparent white */
   border-radius: 2px;
@@ skipping 41 matching lines @@
 }
 
 .network-item:hover > * > button,
 .network-item[connected] > * > button {
   visibility: visible;
 }
 
 .network-item-box-spacer {
   -webkit-box-flex: 1;
 }