Bug 1570660 - Add network ID to about:networking, r=mayhemer,fluent-reviewers,flod

Differential Revision: https://phabricator.services.mozilla.com/D40220

--HG--
extra : moz-landing-system : lando

toolkit/content/aboutNetworking.js

@@ -28,6 +28,7 @@ const gRequestNetworkingData = {
   dnslookuptool: () => {},
   logging: () => {},
   rcwn: gDashboard.requestRcwnStats,
+  networkid: displayNetworkID,
 };
 const gDashboardCallbacks = {
   http: displayHttp,
@@ -177,6 +178,16 @@ function displayRcwnStats(data) {
   }
 }
 
+function displayNetworkID() {
+  let linkIsUp = gNetLinkSvc.isLinkUp;
+  let linkStatusKnown = gNetLinkSvc.linkStatusKnown;
+  let networkID = gNetLinkSvc.networkID;
+
+  document.getElementById("networkid_isUp").innerText = linkIsUp;
+  document.getElementById("networkid_statusKnown").innerText = linkStatusKnown;
+  document.getElementById("networkid_id").innerText = networkID;
+}
+
 function requestAllNetworkingData() {
   for (let id in gRequestNetworkingData) {
     requestNetworkingDataForTab(id);

toolkit/content/aboutNetworking.xhtml

@@ -50,6 +50,9 @@
             <div class="category" id="category-rcwn">
                 <span class="category-name" data-l10n-id="rcwn"/>
             </div>
+            <div class="category" id="category-networkid">
+                <span class="category-name" data-l10n-id="networkid"/>
+            </div>
         </div>
         <div class="main-content">
             <div class="header">
@@ -241,6 +244,25 @@
             </div>
           </div>
 
+          <div id="networkid" class="tab" hidden="true">
+              <table>
+                  <thead>
+                      <tr>
+                          <th data-l10n-id="networkid-isUp"/>
+                          <th data-l10n-id="networkid-statusKnown"/>
+                          <th data-l10n-id="networkid-id"/>
+                      </tr>
+                  </thead>
+                  <tbody id="networkid_content">
+                      <tr>
+                          <td id="networkid_isUp"> </td>
+                          <td id="networkid_statusKnown"> </td>
+                          <td id="networkid_id"> </td>
+                      </tr>
+                  </tbody>
+              </table>
+          </div>
+
         </div>
     </body>
 </html>

toolkit/locales/en-US/toolkit/about/aboutNetworking.ftl

@@ -59,3 +59,12 @@ rcwn-avg-long = Long Average
 rcwn-std-dev-long = Long Standard Deviation
 rcwn-cache-slow = Cache slow count
 rcwn-cache-not-slow = Cache not slow count
+networkid = Network ID
+networkid-id = Network ID
+
+## Link is intended as "network link"
+
+networkid-isUp = Link is up
+networkid-statusKnown = Link status is known
+
+##