1392   struct ImageChunk {  struct in art::gc::space::ImageSpace::BootImageLayout
1393     std::string base_location;
1394     std::string base_filename;
1395     std::string profile_file;
1396     size_t start_index;
1397     uint32_t component_count;
1398     uint32_t image_space_count;
1399     uint32_t reservation_size;
1400     uint32_t checksum;
1401     uint32_t boot_image_component_count;
1402     uint32_t boot_image_checksum;
1403     uint32_t boot_image_size;
1409     mutable android::base::unique_fd art_fd;
1410     mutable android::base::unique_fd vdex_fd;
1411     mutable android::base::unique_fd oat_fd;