Bump vendoring, move to proto3 release.

recipe_engine/third_party/google/protobuf/internal/symbol_database_test.py

 #! /usr/bin/env python
 #
 # 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
 # met:
 #
@@ skipping 21 matching lines @@
 
 """Tests for google.protobuf.symbol_database."""
 
 try:
   import unittest2 as unittest  #PY26
 except ImportError:
   import unittest
 
 from google.protobuf import unittest_pb2
 from google.protobuf import descriptor
+from google.protobuf import descriptor_pool
 from google.protobuf import symbol_database
 
+
 class SymbolDatabaseTest(unittest.TestCase):
 
   def _Database(self):
-    # TODO(b/17734095): Remove this difference when the C++ implementation
-    # supports multiple databases.
     if descriptor._USE_C_DESCRIPTORS:
-      return symbol_database.Default()
+      # The C++ implementation does not allow mixing descriptors from
+      # different pools.
+      db = symbol_database.SymbolDatabase(pool=descriptor_pool.Default())
     else:
       db = symbol_database.SymbolDatabase()
-      # Register representative types from unittest_pb2.
-      db.RegisterFileDescriptor(unittest_pb2.DESCRIPTOR)
-      db.RegisterMessage(unittest_pb2.TestAllTypes)
-      db.RegisterMessage(unittest_pb2.TestAllTypes.NestedMessage)
-      db.RegisterMessage(unittest_pb2.TestAllTypes.OptionalGroup)
-      db.RegisterMessage(unittest_pb2.TestAllTypes.RepeatedGroup)
-      db.RegisterEnumDescriptor(unittest_pb2.ForeignEnum.DESCRIPTOR)
-      db.RegisterEnumDescriptor(unittest_pb2.TestAllTypes.NestedEnum.DESCRIPTOR)
-      return db
+    # Register representative types from unittest_pb2.
+    db.RegisterFileDescriptor(unittest_pb2.DESCRIPTOR)
+    db.RegisterMessage(unittest_pb2.TestAllTypes)
+    db.RegisterMessage(unittest_pb2.TestAllTypes.NestedMessage)
+    db.RegisterMessage(unittest_pb2.TestAllTypes.OptionalGroup)
+    db.RegisterMessage(unittest_pb2.TestAllTypes.RepeatedGroup)
+    db.RegisterEnumDescriptor(unittest_pb2.ForeignEnum.DESCRIPTOR)
+    db.RegisterEnumDescriptor(unittest_pb2.TestAllTypes.NestedEnum.DESCRIPTOR)
+    return db
 
   def testGetPrototype(self):
     instance = self._Database().GetPrototype(
         unittest_pb2.TestAllTypes.DESCRIPTOR)
     self.assertTrue(instance is unittest_pb2.TestAllTypes)
 
   def testGetMessages(self):
     messages = self._Database().GetMessages(
         ['google/protobuf/unittest.proto'])
     self.assertTrue(
@@ skipping 48 matching lines @@
 
   def testFindFileByName(self):
     self.assertEqual(
         'google/protobuf/unittest.proto',
         self._Database().pool.FindFileByName(
             'google/protobuf/unittest.proto').name)
 
 
 if __name__ == '__main__':
   unittest.main()