Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/stubs/common.h

 // 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 78 matching lines @@
 
 namespace google {
 namespace protobuf {
 namespace internal {
 
 // Some of these constants are macros rather than const ints so that they can
 // be used in #if directives.
 
 // The current version, represented as a single integer to make comparison
 // easier:  major * 10^6 + minor * 10^3 + micro
-#define GOOGLE_PROTOBUF_VERSION 3001000
-
-// A suffix string for alpha, beta or rc releases. Empty for stable releases.
-#define GOOGLE_PROTOBUF_VERSION_SUFFIX ""
+#define GOOGLE_PROTOBUF_VERSION 3000000
 
 // The minimum library version which works with the current version of the
 // headers.
-#define GOOGLE_PROTOBUF_MIN_LIBRARY_VERSION 3001000
+#define GOOGLE_PROTOBUF_MIN_LIBRARY_VERSION 3000000
 
 // The minimum header version which works with the current version of
 // the library.  This constant should only be used by protoc's C++ code
 // generator.
-static const int kMinHeaderVersionForLibrary = 3001000;
+static const int kMinHeaderVersionForLibrary = 3000000;
 
 // The minimum protoc version which works with the current version of the
 // headers.
-#define GOOGLE_PROTOBUF_MIN_PROTOC_VERSION 3001000
+#define GOOGLE_PROTOBUF_MIN_PROTOC_VERSION 3000000
 
 // The minimum header version which works with the current version of
 // protoc.  This constant should only be used in VerifyVersion().
-static const int kMinHeaderVersionForProtoc = 3001000;
+static const int kMinHeaderVersionForProtoc = 3000000;
 
 // Verifies that the headers and libraries are compatible.  Use the macro
 // below to call this.
 void LIBPROTOBUF_EXPORT VerifyVersion(int headerVersion, int minLibraryVersion,
                                       const char* filename);
 
 // Converts a numeric version number to a string.
 std::string LIBPROTOBUF_EXPORT VersionString(int version);
 
 }  // namespace internal
@@ skipping 89 matching lines @@
 #endif
 
 // This is at the end of the file instead of the beginning to work around a bug
 // in some versions of MSVC.
 using namespace std;  // Don't do this at home, kids.
 
 }  // namespace protobuf
 }  // namespace google
 
 #endif  // GOOGLE_PROTOBUF_COMMON_H__