third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/stubs/hash.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 23 matching lines @@
 
 #ifndef GOOGLE_PROTOBUF_STUBS_HASH_H__
 #define GOOGLE_PROTOBUF_STUBS_HASH_H__
 
 #include <string.h>
 #include <google/protobuf/stubs/common.h>
 
 #define GOOGLE_PROTOBUF_HAVE_HASH_MAP 1
 #define GOOGLE_PROTOBUF_HAVE_HASH_SET 1
 
-// Android
-#if defined(__ANDROID__)
-# undef GOOGLE_PROTOBUF_HAVE_HASH_MAP
-# undef GOOGLE_PROTOBUF_HAVE_HASH_MAP
-
 // Use C++11 unordered_{map|set} if available.
-#elif ((_LIBCPP_STD_VER >= 11) || \
-      (((__cplusplus >= 201103L) || defined(__GXX_EXPERIMENTAL_CXX0X)) && \
-      (__GLIBCXX__ > 20090421)))
+#if ((_LIBCPP_STD_VER >= 11) || \
+    (((__cplusplus >= 201103L) || defined(__GXX_EXPERIMENTAL_CXX0X)) && \
+    (__GLIBCXX__ > 20090421)))
 # define GOOGLE_PROTOBUF_HAS_CXX11_HASH
 
 // For XCode >= 4.6:  the compiler is clang with libc++.
 // For earlier XCode version: the compiler is gcc-4.2.1 with libstdc++.
 // libc++ provides <unordered_map> and friends even in non C++11 mode,
 // and it does not provide the tr1 library. Therefore the following macro
 // checks against this special case.
 // Note that we should not test the __APPLE_CC__ version number or the
 // __clang__ macro, since the new compiler can still use -stdlib=libstdc++, in
 // which case <unordered_map> is not compilable without -std=c++11
@@ skipping 366 matching lines @@
 struct streq {
   inline bool operator()(const char* a, const char* b) const {
     return strcmp(a, b) == 0;
   }
 };
 
 }  // namespace protobuf
 }  // namespace google
 
 #endif  // GOOGLE_PROTOBUF_STUBS_HASH_H__