Apply content-security-policy to chrome://net-internals.

chrome/browser/resources/net_internals/index.js

+// Copyright (c) 2011 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.
+
+<include src="util.js"/>
+<include src="view.js"/>
+<include src="tabswitcherview.js"/>
+<include src="dataview.js"/>
+<include src="httpcacheview.js"/>
+<include src="testview.js"/>
+<include src="hstsview.js"/>
+<include src="logdumputil.js"/>
+<include src="main.js"/>
+<include src="dnsview.js"/>
+<include src="eventsview.js"/>
+<include src="detailsview.js"/>
+<include src="sourceentry.js"/>
+<include src="resizableverticalsplitview.js"/>
+<include src="topmidbottomview.js"/>
+<include src="timelineviewpainter.js"/>
+<include src="logviewpainter.js"/>
+<include src="loggrouper.js"/>
+<include src="proxyview.js"/>
+<include src="socketpoolwrapper.js"/>
+<include src="socketsview.js"/>
+<include src="spdyview.js"/>
+<include src="serviceprovidersview.js"/>
+<include src="httpthrottlingview.js"/>
+<include src="logsview.js"/>
+<include src="prerenderview.js"/>
+
+document.addEventListener('DOMContentLoaded', function () {
+  $('reloaded-link').addEventListener('click', function () {
+    history.go(0);
+  });
+  onLoaded();  // from main.js
+});