[DevTools] Fix 'node targets available' not appearing, but listed in Remote Devices drawer tab.

third_party/WebKit/Source/devtools/front_end/devices/DevicesView.js

 // Copyright 2015 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.
 /**
  * @unrestricted
  */
 Devices.DevicesView = class extends UI.VBox {
   constructor() {
     super(true);
     this.registerRequiredCSS('devices/devicesView.css');
@@ skipping 68 matching lines @@
     this._selectedListItem = listItem;
     this._visibleView.show(this._viewContainer);
     this._selectedListItem.classList.add('selected');
   }
 
   /**
    * @param {!Common.Event} event
    */
   _devicesUpdated(event) {
     this._devices =
-        /** @type {!Array.<!Adb.Device>} */ (event.data).slice().filter(d => d.adbSerial.toUpperCase() !== 'WEBRTC');
+        /** @type {!Array.<!Adb.Device>} */ (event.data)
+            .slice()
+            .filter(d => d.adbSerial.toUpperCase() !== 'WEBRTC' && d.adbSerial.toUpperCase() !== 'LOCALHOST');
     for (var device of this._devices) {
       if (!device.adbConnected)
         device.adbModel = Common.UIString('Unknown');
     }
 
     var ids = new Set();
     for (var device of this._devices)
       ids.add(device.id);
 
     var selectedRemoved = false;
@@ skipping 574 matching lines @@
     this._portStatus.title = title.join('; ');
     this._portStatus.classList.toggle('hidden', empty);
   }
 };
 
 /** @typedef {!{browser: ?Adb.Browser, element: !Element, title: !Element, pages: !Element, viewMore: !Element, newTab: !Element, pageSections: !Map<string, !Devices.DevicesView.PageSection>}} */
 Devices.DevicesView.BrowserSection;
 
 /** @typedef {!{page: ?Adb.Page, element: !Element, title: !Element, url: !Element, inspect: !Element}} */
 Devices.DevicesView.PageSection;