DevTools: ResourceTreeModel should not report resources twice

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

 /*
  * Copyright (C) 2011 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 303 matching lines @@
 
   /**
    * @param {?SDK.ResourceTreeFrame} parentFrame
    * @param {!Protocol.Page.FrameResourceTree} frameTreePayload
    */
   _addFramesRecursively(parentFrame, frameTreePayload) {
     var framePayload = frameTreePayload.frame;
     var frame = new SDK.ResourceTreeFrame(this, parentFrame, framePayload.id, framePayload, null);
     this._addFrame(frame);
 
-    var frameResource = this._createResourceFromFramePayload(
-        framePayload, framePayload.url, Common.resourceTypes.Document, framePayload.mimeType, null, null);
-    frame.addResource(frameResource);
-
     for (var i = 0; frameTreePayload.childFrames && i < frameTreePayload.childFrames.length; ++i)
       this._addFramesRecursively(frame, frameTreePayload.childFrames[i]);
 
     for (var i = 0; i < frameTreePayload.resources.length; ++i) {
       var subresource = frameTreePayload.resources[i];
       var resource = this._createResourceFromFramePayload(
           framePayload, subresource.url, Common.resourceTypes[subresource.type], subresource.mimeType,
           subresource.lastModified || null, subresource.contentSize || null);
       frame.addResource(resource);
     }
+
+    if (!frame._resourcesMap[framePayload.url]) {
+      var frameResource = this._createResourceFromFramePayload(
+          framePayload, framePayload.url, Common.resourceTypes.Document, framePayload.mimeType, null, null);
+      frame.addResource(frameResource);
+    }
   }
 
   /**
    * @param {!Protocol.Page.Frame} frame
    * @param {string} url
    * @param {!Common.ResourceType} type
    * @param {string} mimeType
    * @param {?number} lastModifiedTime
    * @param {?number} contentSize
    * @return {!SDK.Resource}
@@ skipping 549 matching lines @@
     this._resourceTreeModel.dispatchEventToListeners(SDK.ResourceTreeModel.Events.InterstitialHidden);
   }
 
   /**
    * @override
    */
   navigationRequested() {
     // Frontend is not interested in when navigations are requested.
   }
 };