[DevTools] Implementation of resource requests blocked by specific urls.

Source/devtools/front_end/network/NetworkLogView.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 1281 matching lines @@
         }
         contextMenu.appendItem(WebInspector.UIString.capitalize("Copy ^all as HAR"), this._copyAll.bind(this));
 
         contextMenu.appendSeparator();
         contextMenu.appendItem(WebInspector.UIString.capitalize("Save as HAR with ^content"), this._exportAll.bind(this));
 
         contextMenu.appendSeparator();
         contextMenu.appendItem(WebInspector.UIString.capitalize("Clear ^browser ^cache"), this._clearBrowserCache.bind(this));
         contextMenu.appendItem(WebInspector.UIString.capitalize("Clear ^browser ^cookies"), this._clearBrowserCookies.bind(this));
 
+        var manager = WebInspector.multitargetNetworkManager;
+        if (Runtime.experiments.isEnabled("blockedURLs") && request && !manager.blockedURLs().has(request.url)) {
+            contextMenu.appendSeparator();
+            contextMenu.appendItem(WebInspector.UIString.capitalize("Block ^request URL"), manager.toggleURLBlocked.bind(manager, request.url));
+        }
+
         if (request && request.resourceType() === WebInspector.resourceTypes.XHR) {
             contextMenu.appendSeparator();
             contextMenu.appendItem(WebInspector.UIString("Replay XHR"), request.replayXHR.bind(request));
             contextMenu.appendSeparator();
         }
 
         contextMenu.show();
     },
 
     _harRequests: function()
@@ skipping 749 matching lines @@
         return false;
     return true;
 }
 
 WebInspector.NetworkLogView.EventTypes = {
     RequestSelected: "RequestSelected",
     SearchCountUpdated: "SearchCountUpdated",
     SearchIndexUpdated: "SearchIndexUpdated",
     UpdateRequest: "UpdateRequest"
 };