Show hosted app requests to extensions

chrome/test/data/extensions/api_test/webrequest_hosted_app/index.html

Index: chrome/test/data/extensions/api_test/webrequest_hosted_app/index.html
diff --git a/chrome/test/data/extensions/api_test/webrequest_hosted_app/index.html b/chrome/test/data/extensions/api_test/webrequest_hosted_app/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..024d301dc3fa24a492c3c1325551b46f8cbe606e
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/webrequest_hosted_app/index.html
@@ -0,0 +1,12 @@
+<!--
+ * 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.
+-->
+<script>
+console.assert(chrome.app.isInstalled, 'This page should be a hosted app.');
+
+fetch('./index.html').catch(function() {

[not at google - send to devlin, 2015/09/08 16:09:20]

fetch? this doesn't rely on my recent patch, right?

https://chromium.googlesource.com/chromium/src/+/30a92f969db1ea52cc1688378341...

seems probably not because this is executing inside a webpage, but do remember
we're going to be merging this into M45, so the tests need to pass there as
well.

[robwu, 2015/09/08 17:19:48]

fetch works fine because this page is served at http://localhost:PORT/ (note
also that hosted apps only make sense for http(s)).

+  console.error('fetch unexpectedly failed!');
+});
+</script>