DevTools: allow reattaching main target live.

third_party/WebKit/Source/devtools/front_end/main/RemoteLocationManager.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.
 
 /**
  * @constructor
  * @extends {WebInspector.SDKObject}
  * @param {!WebInspector.Target} target
  * @implements {BrowserAgent.Dispatcher}
  */
@@ skipping 27 matching lines @@
      */
     _discoverTargets: function()
     {
         return this.target().browserAgent().setRemoteLocations(this._defaultLocations, this._requestTargets.bind(this));
     },
 
     /**
      * @param {?Protocol.Error} error
      * @return {!Promise}
      */
-    _requestTargets: function (error)
+    _requestTargets: function(error)
     {
         if (error) {
             console.error(error);
             return Promise.resolve();
         }
 
         return this.target().browserAgent().getTargets(this._processTargets.bind(this));
     },
 
     /**
@@ skipping 13 matching lines @@
             if (info.type !== "node")
                 continue;
             newTargetInfos.set(info.targetId, info);
         }
 
         for (var targetId of this._connectedTargets.keys()) {
             if (!newTargetInfos.has(targetId)) {
                 var target = this._connectedTargets.get(targetId);
                 this._connectedTargets.delete(targetId);
                 if (target)
-                    WebInspector.targetManager.removeTarget(target);
+                    target.dispose();
             }
         }
 
         var promises = [];
         for (var targetId of newTargetInfos.keys()) {
             if (this._connectedTargets.has(targetId))
                 continue;
 
             this._connectedTargets.set(targetId, null);
             promises.push(this.target().browserAgent().attach(targetId, this._createConnection.bind(this, targetId, newTargetInfos.get(targetId).title)));
@@ skipping 40 matching lines @@
 WebInspector.RemoteLocationConnection.prototype = {
     /**
      * @override
      * @param {!Object} messageObject
      */
     sendMessage: function(messageObject)
     {
         this._agent.sendMessage(this._targetId, JSON.stringify(messageObject));
     },
 
-    _close: function()
+    /**
+     * @override
+     */
+    forceClose: function()
     {
-        this.connectionClosed("node_detached");
+        this._agent.detach(this._targetId, () => {});
     },
 
     __proto__: InspectorBackendClass.Connection.prototype
 }