Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/testing/zcgunzip.cc

 // Protocol Buffers - Google's data interchange format
 // Copyright 2009 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// 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.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
@@ skipping 17 matching lines @@
 // Author: brianolson@google.com (Brian Olson)
 //  Based on original Protocol Buffers design by
 //  Sanjay Ghemawat, Jeff Dean, and others.
 //
 // Test program to verify that GzipInputStream is compatible with command line
 // gunzip or java.util.zip.GzipInputStream
 //
 // Reads gzip stream on standard input and writes decompressed data to standard
 // output.
 
-#include "config.h"
-
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <fcntl.h>
 
+#ifdef _WIN32
+#ifndef STDIN_FILENO
+#define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+#define STDOUT_FILENO 1
+#endif
+#endif
+
 #include <google/protobuf/io/gzip_stream.h>
 #include <google/protobuf/io/zero_copy_stream_impl.h>
 
 using google::protobuf::io::FileInputStream;
 using google::protobuf::io::GzipInputStream;
 
 int main(int argc, const char** argv) {
   FileInputStream fin(STDIN_FILENO);
   GzipInputStream in(&fin);
 
   while (true) {
     const void* inptr;
     int inlen;
     bool ok;
     ok = in.Next(&inptr, &inlen);
     if (!ok) {
       break;
     }
     if (inlen > 0) {
       int err = write(STDOUT_FILENO, inptr, inlen);
       assert(err == inlen);
     }
   }
 
   return 0;
 }