Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/src/google/protobuf/util/internal/constants.h

Index: third_party/protobuf/src/google/protobuf/util/internal/constants.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/constants.h b/third_party/protobuf/src/google/protobuf/util/internal/constants.h
index 0cb8f6e1e26fe30c9a691e6531d63d02589899c9..e556888cca93414c68d63cfaa5a6d4954c15b70f 100644
--- a/third_party/protobuf/src/google/protobuf/util/internal/constants.h
+++ b/third_party/protobuf/src/google/protobuf/util/internal/constants.h
@@ -43,13 +43,23 @@ namespace converter {
 const char kTypeServiceBaseUrl[] = "type.googleapis.com";
 
 // Format string for RFC3339 timestamp formatting.
-const char kRfc3339TimeFormat[] = "%Y-%m-%dT%H:%M:%S";
+const char kRfc3339TimeFormat[] = "%E4Y-%m-%dT%H:%M:%S";
 
-// Minimum seconds allowed in a google.protobuf.TimeStamp or Duration value.
-const int64 kMinSeconds = -315576000000;
+// Same as above, but the year value is not zero-padded i.e. this accepts
+// timestamps like "1-01-0001T23:59:59Z" instead of "0001-01-0001T23:59:59Z".
+const char kRfc3339TimeFormatNoPadding[] = "%Y-%m-%dT%H:%M:%S";
 
-// Maximum seconds allowed in a google.protobuf.TimeStamp or Duration value.
-const int64 kMaxSeconds = 315576000000;
+// Minimun seconds allowed in a google.protobuf.Timestamp value.
+const int64 kTimestampMinSeconds = -62135596800;
+
+// Maximum seconds allowed in a google.protobuf.Timestamp value.
+const int64 kTimestampMaxSeconds = 253402300799;
+
+// Minimum seconds allowed in a google.protobuf.Duration value.
+const int64 kDurationMinSeconds = -315576000000;
+
+// Maximum seconds allowed in a google.protobuf.Duration value.
+const int64 kDurationMaxSeconds = 315576000000;
 
 // Nano seconds in a second.
 const int32 kNanosPerSecond = 1000000000;