[Devtools] New network canvas timeline now properly shows initiators

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

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1155 matching lines @@
      * @return {?WebInspector.NetworkRequest}
      */
     initiatorRequest: function()
     {
         if (this._initiatorRequest === undefined)
             this._initiatorRequest = this._networkLog.requestForURL(this.initiatorInfo().url);
         return this._initiatorRequest;
     },
 
     /**
+     * @return {!{initiators: !Set<!WebInspector.NetworkRequest>, initiated: !Set<!WebInspector.NetworkRequest>}}

[dgozman, 2016/11/01 01:31:15]

Let's typedef this.

[allada, 2016/11/01 01:37:51]

Done.

+     */
+    initiatorGraph: function()
+    {
+        var initiated = new Set();
+        var requests = this._networkLog.requests();
+        for (var request of requests) {
+            var localInitiators = request._initiatorChain();
+            if (localInitiators.has(this))
+                initiated.add(request);
+        }
+        return {initiators: this._initiatorChain(), initiated: initiated};
+    },
+
+    /**
      * @return {!Set<!WebInspector.NetworkRequest>}
      */
-    initiatorChain: function()
+    _initiatorChain: function()
     {
-        if (this._initiatorChain)
-            return this._initiatorChain;
-        this._initiatorChain = new Set();
+        if (this._initiatorChainCache)
+            return this._initiatorChainCache;
+        this._initiatorChainCache = new Set();
         var request = this;
         while (request) {
-            this._initiatorChain.add(request);
+            this._initiatorChainCache.add(request);
             request = request.initiatorRequest();
         }
-        return this._initiatorChain;
+        return this._initiatorChainCache;
     },
 
     /**
      * @return {!Array.<!WebInspector.NetworkRequest.WebSocketFrame>}
      */
     frames: function()
     {
         return this._frames;
     },
 
@@ skipping 63 matching lines @@
     /**
      * @return {!WebInspector.NetworkManager}
      */
     networkManager: function()
     {
         return this._networkManager;
     },
 
     __proto__: WebInspector.SDKObject.prototype
 };