Bypass ServiceWorker when the request originates from isolated world.

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

Index: chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/sw.js
diff --git a/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/sw.js b/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/sw.js
new file mode 100644
index 0000000000000000000000000000000000000000..c62f60f4350546d9db80d88f9d1a9d16ca0d18ce
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/service_worker/content_script_fetch/controlled_page/sw.js
@@ -0,0 +1,21 @@
+// 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.
+
+self.addEventListener('fetch', function(event) {
+    if (event.request.url.indexOf('sw_controlled_check') != -1) {
+      event.respondWith(new Response('SW controlled'));
+    } else if (event.request.url.indexOf('data_for_content_script') != -1) {
+      event.respondWith(new Response('SW served data'));
+    }
+  });
+
+self.addEventListener('message', function(event) {
+    self.clients.claim()
+      .then(function(result) {
+          event.data.port.postMessage('clients claimed');
+        })
+      .catch(function(error) {
+          event.data.port.postMessage('FAIL: exception: ' + error.name);
+        });
+  });