Extension SW - add test for ServiceWorkerRegistration.sync.

content/public/test/background_sync_test_util.h

Index: content/public/test/background_sync_test_util.h
diff --git a/content/public/test/background_sync_test_util.h b/content/public/test/background_sync_test_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..ff43ddec5c75b88cb381186d312121fe68440069
--- /dev/null
+++ b/content/public/test/background_sync_test_util.h
@@ -0,0 +1,29 @@
+// 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.
+
+#ifndef CONTENT_PUBLIC_TEST_BACKGROUND_SYNC_TEST_UTILS_H_
+#define CONTENT_PUBLIC_TEST_BACKGROUND_SYNC_TEST_UTILS_H_
+
+namespace content {
+class WebContents;
+}  // namespace content
+
+// Utility namespace for background sync tests.
+namespace background_sync_test_util {
+
+// Enables or disables notifications coming from the NetworkChangeNotifier.
+// (For preventing flakes in tests)
+void SetIgnoreNetworkChangeNotifier(bool ignore);
+
+// Puts background sync manager into online or offline mode for tests.
+//
+// This eventually (asynchronously) runs on the IO thread. However you can
+// start performing background sync operation without waiting for the IO

[jkarlin, 2015/11/17 20:36:15]

s/operation/operations/

[lazyboy, 2015/11/17 21:41:28]

Done.

+// thread task to complete, since those background sync operations also run
+// on the IO thread.
+void SetOnline(content::WebContents* web_contents, bool online);
+
+}  // namespace background_sync_test_util
+
+#endif  // CONTENT_PUBLIC_TEST_BACKGROUND_SYNC_TEST_UTILS_H_