Update //third_party/protobuf to version 3.

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

Index: third_party/protobuf/src/google/protobuf/stubs/pbconfig.h
diff --git a/third_party/protobuf/src/google/protobuf/stubs/pbconfig.h b/third_party/protobuf/src/google/protobuf/stubs/pbconfig.h
deleted file mode 100644
index 1c0cfbe8a9e82409a232feacedca30d2afee42ea..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/stubs/pbconfig.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Modified for Chromium to support stlport and libc++ adaptively */
-/* protobuf config.h for MSVC.  On other platforms, this is generated
- * automatically by autoheader / autoconf / configure. */
-
-// NOTE: if you add new macros in this file manually, please propagate the macro
-// to vsprojects/config.h.
-
-/* the namespace of hash_map/hash_set */
-// Apparently Microsoft decided to move hash_map *back* to the std namespace
-// in MSVC 2010:
-//   http://blogs.msdn.com/vcblog/archive/2009/05/25/stl-breaking-changes-in-visual-studio-2010-beta-1.aspx
-// And.. they are moved back to stdext in MSVC 2013 (haven't checked 2012). That
-// said, use unordered_map for MSVC 2010 and beyond is our safest bet.
-#if _MSC_VER >= 1600
-#define GOOGLE_PROTOBUF_HASH_NAMESPACE std
-#define GOOGLE_PROTOBUF_HASH_MAP_H <unordered_map>
-#define GOOGLE_PROTOBUF_HASH_MAP_CLASS unordered_map
-#define GOOGLE_PROTOBUF_HASH_SET_H <unordered_set>
-#define GOOGLE_PROTOBUF_HASH_SET_CLASS unordered_set
-#elif _MSC_VER >= 1310
-#define GOOGLE_PROTOBUF_HASH_NAMESPACE stdext
-#define GOOGLE_PROTOBUF_HASH_MAP_H <hash_map>
-#define GOOGLE_PROTOBUF_HASH_MAP_CLASS hash_map
-#define GOOGLE_PROTOBUF_HASH_SET_H <hash_set>
-#define GOOGLE_PROTOBUF_HASH_SET_CLASS hash_set
-#else
-/* the name of <hash_map> */
-#if defined(_LIBCPP_VERSION)
-#define GOOGLE_PROTOBUF_HASH_MAP_CLASS unordered_map
-#else
-#define GOOGLE_PROTOBUF_HASH_MAP_CLASS hash_map
-#endif
-
-/* the location of <unordered_map> or <hash_map> */
-#if defined(USE_STLPORT)
-#define GOOGLE_PROTOBUF_HASH_MAP_H <hash_map>
-#elif defined(_LIBCPP_VERSION)
-#define GOOGLE_PROTOBUF_HASH_MAP_H <unordered_map>
-#else
-#define GOOGLE_PROTOBUF_HASH_MAP_H <ext/hash_map>
-#endif
-
-/* the namespace of hash_map/hash_set */
-#if defined(USE_STLPORT) || defined(_LIBCPP_VERSION)
-#define GOOGLE_PROTOBUF_HASH_NAMESPACE std
-#else
-#define GOOGLE_PROTOBUF_HASH_NAMESPACE __gnu_cxx
-#endif
-
-/* the name of <hash_set> */
-#if defined(_LIBCPP_VERSION)
-#define GOOGLE_PROTOBUF_HASH_SET_CLASS unordered_set
-#else
-#define GOOGLE_PROTOBUF_HASH_SET_CLASS hash_set
-#endif
-
-/* the location of <unordered_set> or <hash_set> */
-#if defined(USE_STLPORT)
-#define GOOGLE_PROTOBUF_HASH_SET_H <hash_set>
-#elif defined(_LIBCPP_VERSION)
-#define GOOGLE_PROTOBUF_HASH_SET_H <unordered_set>
-#else
-#define GOOGLE_PROTOBUF_HASH_SET_H <ext/hash_set>
-#endif
-
-#endif  // _MSC_VER >= 1600
-
-/* the location of <hash_set> */
-
-/* define if the compiler has hash_map */
-#define GOOGLE_PROTOBUF_HAVE_HASH_MAP 1
-
-/* define if the compiler has hash_set */
-#define GOOGLE_PROTOBUF_HAVE_HASH_SET 1