Hide requests in an extension from other extensions

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

+// 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();

[not at google - send to devlin, 2015/08/04 23:12:03]

For the record, the ideal test factoring would probably have been to use a
TestExtensionDir from the C++ then manufacture the app, extension, and extension
iframe. This pattern of send XHR, wait for response, check there was response,
notify success is pretty common.

but no point rewriting things for that.

[robwu, 2015/08/05 16:38:08]

Good to know for the future. I'll keep the current CL as is though.