[DevTools] Implement Target.setDiscoverTargets method.

third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.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.SDKModel}
  * @param {!WebInspector.Target} target
  */
 WebInspector.SubTargetsManager = function(target)
@@ skipping 133 matching lines @@
     _targetCreated: function(targetInfo)
     {
         console.assert(!this._allTargets.has(targetInfo.id));
         console.assert(!this._attachedTargets.has(targetInfo.id));
         this._allTargets.set(targetInfo.id, targetInfo);
     },
 
     /**
      * @param {string} targetId
      */
-    _targetRemoved: function(targetId)
+    _targetDestroyed: function(targetId)
     {
         console.assert(this._allTargets.has(targetId));
         console.assert(!this._attachedTargets.has(targetId));
         this._allTargets.delete(targetId);
     },
 
     /**
      * @param {string} targetId
      * @param {boolean} waitingForDebugger
      */
@@ skipping 67 matching lines @@
      */
     targetCreated: function(targetInfo)
     {
         this._manager._targetCreated(new WebInspector.TargetInfo(targetInfo));
     },
 
     /**
      * @override
      * @param {string} targetId
      */
-    targetRemoved: function(targetId)
+    targetDestroyed: function(targetId)
     {
-        this._manager._targetRemoved(targetId);
+        this._manager._targetDestroyed(targetId);
     },
 
     /**
      * @override
      * @param {string} targetId
      * @param {boolean} waitingForDebugger
      */
     attachedToTarget: function(targetId, waitingForDebugger)
     {
         this._manager._attachedToTarget(targetId, waitingForDebugger);
@@ skipping 60 matching lines @@
     this.url = payload.url;
     this.type = payload.type;
     if (this.type !== "page" && this.type !== "iframe") {
         this.title = WebInspector.UIString("Worker: %s", this.url);
         this.canActivate = false;
     } else {
         this.title = payload.title;
         this.canActivate = true;
     }
 }