bluetooth: Basic browser tests for chrome://bluetooth-internals.

chrome/browser/resources/bluetooth_internals/bluetooth_internals.js

Index: chrome/browser/resources/bluetooth_internals/bluetooth_internals.js
diff --git a/chrome/browser/resources/bluetooth_internals/bluetooth_internals.js b/chrome/browser/resources/bluetooth_internals/bluetooth_internals.js
index ecb9ca3e90d564865b3c16946126a287601a1a29..221f991077646d8859edde384469203894aabb52 100644
--- a/chrome/browser/resources/bluetooth_internals/bluetooth_internals.js
+++ b/chrome/browser/resources/bluetooth_internals/bluetooth_internals.js
@@ -7,6 +7,10 @@
  *     chrome://bluetooth-internals/.
  */
 
+// Exposed to get access for testing.
+var adapterClient = null;
+var deviceTable = null;
+
 cr.define('bluetooth_internals', function() {
   /**
    * The implementation of AdapterClient in
@@ -44,8 +48,6 @@ cr.define('bluetooth_internals', function() {
     }
   };
 
-  var adapterClient = null;
-
   function initialize() {
     interfaces.initialize()
       .then(function() {
@@ -64,8 +66,9 @@ cr.define('bluetooth_internals', function() {
         response.devices.forEach(adapterClient.deviceAdded,
                                  adapterClient /** this */);
 
-        var deviceTable = new device_table.DeviceTable();
+        deviceTable = new device_table.DeviceTable();
         deviceTable.setDevices(adapterClient.devices);
+        deviceTable.id = 'device-table';
         document.body.appendChild(deviceTable);
       })
       .catch(function(error) { console.error(error); });