Method get_chunk_size

src/test/erasure-code/TestErasureCode.cc:46–48

  unsigned int get_chunk_count() const override { return k + m; }
  unsigned int get_data_chunk_count() const override { return k; }
  unsigned int get_chunk_size(unsigned int object_size) const override {
    return chunk_size;
  }
  size_t get_minimum_granularity() override { return 1; }
  [[deprecated]]
  int encode_chunks(const set<int> &want_to_encode,