Refactor ServiceWorker tests for inclusion in WPT

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/navigation-preload/resources/chunked-encoding-scope.py

Index: third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/navigation-preload/resources/chunked-encoding-scope.py
diff --git a/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/navigation-preload/resources/chunked-encoding-scope.py b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/navigation-preload/resources/chunked-encoding-scope.py
new file mode 100644
index 0000000000000000000000000000000000000000..570037182975bfae33b64df52650d836b28fd7a7
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/navigation-preload/resources/chunked-encoding-scope.py
@@ -0,0 +1,17 @@
+import time
+
+def main(request, response):
+    body = "hello\nworld\n\n"
+
+    response.add_required_headers = False
+    response.writer.write_status(200)
+    response.writer.write_header("Content-type", "text/html; charset=UTF-8")
+    response.writer.write_header("Transfer-encoding", "chunked")

[falken, 2017/03/07 06:25:59]

nit: Make the double-quoted strings above be single-quotes strings for
consistency with the strings below, or the other way around.

[mike3, 2017/03/07 16:47:03]

Oh, of course! How sloppy of me.

+    response.writer.end_headers()
+
+    for idx in range(10):
+        response.writer.write('%s\r\n%s\r\n' % (len(str(idx)), idx))
+        response.writer.flush()
+        time.sleep(0.001)
+
+    response.writer.write('0\r\n\r\n')