third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc

 // 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:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 81 matching lines @@
     string* expected_contents = FindPtrOrNull(files_, virtual_filename);
     ASSERT_TRUE(expected_contents != NULL)
       << "Generator failed to generate file: " << virtual_filename;
 
     string actual_contents;
     GOOGLE_CHECK_OK(
         File::GetContents(TestSourceDir() + "/" + physical_filename,
                           &actual_contents, true));
     EXPECT_TRUE(actual_contents == *expected_contents)
       << physical_filename << " needs to be regenerated.  Please run "
-         "google/protobuf/compiler/release_compiler.sh and "
          "generate_descriptor_proto.sh. Then add this file "
          "to your CL.";
   }
 
   // implements GeneratorContext --------------------------------------
 
   virtual io::ZeroCopyOutputStream* Open(const string& filename) {
     string** map_slot = &files_[filename];
     delete *map_slot;
     *map_slot = new string;
 
     return new io::StringOutputStream(*map_slot);
   }
 
  private:
-  map<string, string*> files_;
+  std::map<string, string*> files_;
 };
 
 TEST(BootstrapTest, GeneratedDescriptorMatches) {
   MockErrorCollector error_collector;
   DiskSourceTree source_tree;
   source_tree.MapPath("", TestSourceDir());
   Importer importer(&source_tree, &error_collector);
   const FileDescriptor* proto_file =
     importer.Import("google/protobuf/descriptor.proto");
   const FileDescriptor* plugin_proto_file =
@@ skipping 21 matching lines @@
   context.ExpectFileMatches("google/protobuf/compiler/plugin.pb.cc",
                             "google/protobuf/compiler/plugin.pb.cc");
 }
 
 }  // namespace
 
 }  // namespace cpp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google