WebSocket test server migration on PPAPI tests

net/data/websocket/close-code-and-reason_wsh.py

+# Copyright (c) 2012 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.
+
+import struct
+
+from mod_pywebsocket import stream
+
+
+def web_socket_do_extra_handshake(_request):
+  pass
+
+
+def web_socket_transfer_data(request):
+  line = request.ws_stream.receive_message()
+  if line is None:
+    return
+  if line == '-':
+    data = ''
+  elif line == '--':
+    data = 'X'
+  else:
+    code, reason = line.split(' ', 1)
+    data = struct.pack('!H', int(code)) + reason.encode('utf-8')
+  request.connection.write(stream.create_close_frame(data))