bluetooth: Add notification system to internals page.

chrome/browser/resources/bluetooth_internals/device_collection.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * Javascript for DeviceCollection, served from
  *     chrome://bluetooth-internals/.
  */
 
 cr.define('device_collection', function() {
@@ skipping 69 matching lines @@
     remove: function(deviceInfo) {
       var device = this.getByAddress(deviceInfo.address);
       assert(device, 'Device does not exist.');
       device.removed = true;
       this.updateIndex(this.indexOf(device));
     },
 
     /**
      * Updates the device connection status.
      * @param {string} address The address of the device.
-     * @param {number} status .
-     * @param {?Error} opt_error Optional Error from connection.
+     * @param {number} status The new connection status.
      */
     updateConnectionStatus: function(address, status, opt_error) {
-      var message = (opt_error && opt_error.message) || '';
-
       var device = assert(this.getByAddress(address), 'Device does not exist');
       device.connectionStatus = status;
-
-      // TODO(crbug.com/663830): Replace connection error column with better
-      // notification system.
-      device.connectionMessage = message;
       this.updateIndex(this.indexOf(device));
     },
   };
 
   return {
     ConnectionStatus: ConnectionStatus,
     DeviceCollection: DeviceCollection,
   };
 });