Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data_pointy.txt

Index: third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data_pointy.txt
diff --git a/third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data.txt b/third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data_pointy.txt
similarity index 79%
copy from third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data.txt
copy to third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data_pointy.txt
index 0a217f025dca5e0fd5b153e7969052d422d2fdf2..132f7445f3f75bdaae37f2cbee5fcea3e76169a9 100644
--- a/third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data.txt
+++ b/third_party/protobuf/src/google/protobuf/testdata/text_format_unittest_extensions_data_pointy.txt
@@ -13,29 +13,29 @@
 [protobuf_unittest.optional_bool_extension]: true
 [protobuf_unittest.optional_string_extension]: "115"
 [protobuf_unittest.optional_bytes_extension]: "116"
-[protobuf_unittest.optionalgroup_extension] {
+[protobuf_unittest.optionalgroup_extension] <
   a: 117
-}
-[protobuf_unittest.optional_nested_message_extension] {
+>
+[protobuf_unittest.optional_nested_message_extension] <
   bb: 118
-}
-[protobuf_unittest.optional_foreign_message_extension] {
+>
+[protobuf_unittest.optional_foreign_message_extension] <
   c: 119
-}
-[protobuf_unittest.optional_import_message_extension] {
+>
+[protobuf_unittest.optional_import_message_extension] <
   d: 120
-}
+>
 [protobuf_unittest.optional_nested_enum_extension]: BAZ
 [protobuf_unittest.optional_foreign_enum_extension]: FOREIGN_BAZ
 [protobuf_unittest.optional_import_enum_extension]: IMPORT_BAZ
 [protobuf_unittest.optional_string_piece_extension]: "124"
 [protobuf_unittest.optional_cord_extension]: "125"
-[protobuf_unittest.optional_public_import_message_extension] {
+[protobuf_unittest.optional_public_import_message_extension] <
   e: 126
-}
-[protobuf_unittest.optional_lazy_message_extension] {
+>
+[protobuf_unittest.optional_lazy_message_extension] <
   bb: 127
-}
+>
 [protobuf_unittest.repeated_int32_extension]: 201
 [protobuf_unittest.repeated_int32_extension]: 301
 [protobuf_unittest.repeated_int64_extension]: 202
@@ -66,30 +66,30 @@
 [protobuf_unittest.repeated_string_extension]: "315"
 [protobuf_unittest.repeated_bytes_extension]: "216"
 [protobuf_unittest.repeated_bytes_extension]: "316"
-[protobuf_unittest.repeatedgroup_extension] {
+[protobuf_unittest.repeatedgroup_extension] <
   a: 217
-}
-[protobuf_unittest.repeatedgroup_extension] {
+>
+[protobuf_unittest.repeatedgroup_extension] <
   a: 317
-}
-[protobuf_unittest.repeated_nested_message_extension] {
+>
+[protobuf_unittest.repeated_nested_message_extension] <
   bb: 218
-}
-[protobuf_unittest.repeated_nested_message_extension] {
+>
+[protobuf_unittest.repeated_nested_message_extension] <
   bb: 318
-}
-[protobuf_unittest.repeated_foreign_message_extension] {
+>
+[protobuf_unittest.repeated_foreign_message_extension] <
   c: 219
-}
-[protobuf_unittest.repeated_foreign_message_extension] {
+>
+[protobuf_unittest.repeated_foreign_message_extension] <
   c: 319
-}
-[protobuf_unittest.repeated_import_message_extension] {
+>
+[protobuf_unittest.repeated_import_message_extension] <
   d: 220
-}
-[protobuf_unittest.repeated_import_message_extension] {
+>
+[protobuf_unittest.repeated_import_message_extension] <
   d: 320
-}
+>
 [protobuf_unittest.repeated_nested_enum_extension]: BAR
 [protobuf_unittest.repeated_nested_enum_extension]: BAZ
 [protobuf_unittest.repeated_foreign_enum_extension]: FOREIGN_BAR
@@ -100,12 +100,12 @@
 [protobuf_unittest.repeated_string_piece_extension]: "324"
 [protobuf_unittest.repeated_cord_extension]: "225"
 [protobuf_unittest.repeated_cord_extension]: "325"
-[protobuf_unittest.repeated_lazy_message_extension] {
+[protobuf_unittest.repeated_lazy_message_extension] <
   bb: 227
-}
-[protobuf_unittest.repeated_lazy_message_extension] {
+>
+[protobuf_unittest.repeated_lazy_message_extension] <
   bb: 327
-}
+>
 [protobuf_unittest.default_int32_extension]: 401
 [protobuf_unittest.default_int64_extension]: 402
 [protobuf_unittest.default_uint32_extension]: 403
@@ -126,3 +126,9 @@
 [protobuf_unittest.default_import_enum_extension]: IMPORT_FOO
 [protobuf_unittest.default_string_piece_extension]: "424"
 [protobuf_unittest.default_cord_extension]: "425"
+[protobuf_unittest.oneof_uint32_extension]: 601
+[protobuf_unittest.oneof_nested_message_extension] <
+  bb: 602
+>
+[protobuf_unittest.oneof_string_extension]: "603"
+[protobuf_unittest.oneof_bytes_extension]: "604"