MD Settings: Add settings-internet-config (WiFi only, no certs)

chrome/browser/resources/settings/internet_page/network_summary_item.html

 <link rel="import" href="chrome://resources/cr_elements/network/cr_network_icon.html">
 <link rel="import" href="chrome://resources/cr_elements/policy/cr_policy_indicator.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-toggle-button/paper-toggle-button.html">
 <link rel="import" href="../settings_page/settings_subpage.html">
 <link rel="import" href="../settings_shared_css.html">
 <link rel="import" href="network_siminfo.html">
 
 <dom-module id="network-summary-item">
   <template>
-    <style include="settings-shared">
-      cr-network-icon {
-        -webkit-padding-end: var(--settings-box-row-padding);
-      }
-
+    <style include="internet-shared">
       network-siminfo {
         padding: 0 var(--settings-box-row-padding);
       }
 
       #details {
         align-items: center;
         display: flex;
         flex: auto;
       }
 
@@ skipping 46 matching lines @@
             aria-label$="[[getToggleA11yString_(deviceState)]]"
             checked="[[deviceIsEnabled_(deviceState)]]"
             enabled="[[enableToggleIsEnabled_(deviceState)]]"
             on-tap="onDeviceEnabledTap_">
         </paper-toggle-button>
       </template>
     </div>
   </template>
   <script src="network_summary_item.js"></script>
 </dom-module>