Update //third_party/protobuf to version 3.

third_party/protobuf/python/google/protobuf/internal/import_test_package/__init__.py

Index: third_party/protobuf/python/google/protobuf/internal/import_test_package/__init__.py
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/echo-path_wsh.py b/third_party/protobuf/python/google/protobuf/internal/import_test_package/__init__.py
similarity index 83%
copy from third_party/WebKit/LayoutTests/http/tests/websocket/echo-path_wsh.py
copy to third_party/protobuf/python/google/protobuf/internal/import_test_package/__init__.py
index 6072a28e6c821bdf301d4c1cf7e2c50c2cebdeef..5121dd0ec58ff275d215edafc2e84c1c7b800e0a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/echo-path_wsh.py
+++ b/third_party/protobuf/python/google/protobuf/internal/import_test_package/__init__.py
@@ -1,4 +1,6 @@
-# Copyright (C) 2013 Google Inc. All rights reserved.
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+# https://developers.google.com/protocol-buffers/
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
@@ -26,13 +28,6 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+"""Sample module importing a nested proto from itself."""
 
-from mod_pywebsocket import common, msgutil
-
-
-def web_socket_do_extra_handshake(request):
-    pass
-
-
-def web_socket_transfer_data(request):
-    msgutil.send_message(request, request.uri)
+from google.protobuf.internal.import_test_package import outer_pb2 as myproto