message: Update tensorflow/core/lib/strings/proto_serialization.cc
diff: @@ -72,7 +72,7 @@ bool SerializeToBufferDeterministic(const protobuf::MessageLite& msg,
  protobuf::io::CodedOutputStream output_stream(&array_stream);
  output_stream.SetSerializationDeterministic(true);
  msg.SerializeWithCachedSizes(&output_stream);
  - return !output_stream.HadError() && size == (size_t)(output_stream.ByteCount());
  + return !output_stream.HadError() && size == static_cast<size_t>(output_stream.ByteCount());
  }
  bool AreSerializedProtosEqual(const protobuf::MessageLite& x,
  