Hide requests in an extension from other extensions

chrome/test/data/extensions/api_test/webrequest_extensions/extension/framescript.js

Index: chrome/test/data/extensions/api_test/webrequest_extensions/extension/framescript.js
diff --git a/chrome/test/data/extensions/api_test/webrequest_extensions/extension/framescript.js b/chrome/test/data/extensions/api_test/webrequest_extensions/extension/framescript.js
new file mode 100644
index 0000000000000000000000000000000000000000..f3761279cd130b425c4508c5b115887356969847
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/webrequest_extensions/extension/framescript.js
@@ -0,0 +1,16 @@
+// Copyright 2015 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.
+
+// |baseUrl| will be equivalent to 'http://example.com:PORT';
+var baseUrl = location.ancestorOrigins[0];
+
+var x = new XMLHttpRequest();
+x.open('GET', baseUrl + '/extensions/test_file.txt?framescript');
+x.onloadend = function() {
+  // Sanity check.
+  chrome.test.assertEq('Hello!', x.responseText);
+
+  chrome.test.sendMessage('framescript_done');
+};
+x.send();