Bypass ServiceWorker when the request originates from isolated world.

chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/register_sw.js

Index: chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/register_sw.js
diff --git a/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/register_sw.js b/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/register_sw.js
new file mode 100644
index 0000000000000000000000000000000000000000..7e5c46f4c510d2d00e8ed164df87202e95d84958
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/register_sw.js
@@ -0,0 +1,27 @@
+// 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.
+
+function register() {
+  var script = './sw.js';
+  var scope = './';
+  navigator.serviceWorker.register(script, {scope: scope})
+    .then(function() { return navigator.serviceWorker.ready; })
+    .then(function(registration) {
+        var channel = new MessageChannel();
+        var saw_message = new Promise(function(resolve, reject) {
+            channel.port1.onmessage = function (e) {
+              if (e.data == 'clients claimed')
+                resolve();
+              else
+                reject(e.data)
+            };
+          });
+        registration.active.postMessage({port: channel.port2}, [channel.port2]);
+        return saw_message;
+      })
+    .then(function() { return fetch('./sw_controlled_check'); })
+    .then(function(res) { return res.text(); })
+    .then(function(txt) { window.domAutomationController.send(txt); })
+    .catch(function(e) { window.domAutomationController.send('Fail: ' + e); });
+}