Method resize

tensorflow/core/platform/tstring.h:158–158

  char& operator[](size_t i) { return str_[i]; }

  void resize(size_t new_size) { str_.resize(new_size); }

  void resize_uninitialized(size_t new_size) {
    ResizeUninitialized<decltype(str_)>::Resize(str_, new_size);