[DevTools] Dedicated frontend for debugging Node.

third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js

 /*
  * Copyright 2014 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
  */
 SDK.TargetManager = class extends Common.Object {
@@ skipping 322 matching lines @@
 
   /**
    * @param {function()} webSocketConnectionLostCallback
    */
   connectToMainTarget(webSocketConnectionLostCallback) {
     this._webSocketConnectionLostCallback = webSocketConnectionLostCallback;
     this._connectAndCreateMainTarget();
   }
 
   _connectAndCreateMainTarget() {
+    if (Runtime.queryParam('nodeFrontend')) {
+      var target = new SDK.Target(
+          this, Common.UIString('Node'), SDK.Target.Capability.Target, this._createMainConnection.bind(this), null);
+      target.subTargetsManager = new SDK.SubTargetsManager(target);
+      target.setInspectedURL('Node');
+      return;
+    }
+
     var capabilities = SDK.Target.Capability.Browser | SDK.Target.Capability.DOM | SDK.Target.Capability.JS |
         SDK.Target.Capability.Log | SDK.Target.Capability.Network | SDK.Target.Capability.Target;
     if (Runtime.queryParam('isSharedWorker')) {
       capabilities = SDK.Target.Capability.Browser | SDK.Target.Capability.Log | SDK.Target.Capability.Network |
           SDK.Target.Capability.Target;
     } else if (Runtime.queryParam('v8only')) {
       capabilities = SDK.Target.Capability.JS;
     }
 
     var target = this.createTarget(Common.UIString('Main'), capabilities, this._createMainConnection.bind(this), null);
@@ skipping 54 matching lines @@
   /**
    * @param {!SDK.Target} target
    */
   targetRemoved(target) {},
 };
 
 /**
  * @type {!SDK.TargetManager}
  */
 SDK.targetManager = new SDK.TargetManager();