Cross Reference: /external/libtextclassifier/lang_id/common/file

`Name`	`Date`	`Size`
Up to higher level directory
`file-utils.cc`	22-Oct-2020	`1.7K`
`file-utils.h`	22-Oct-2020	`2.8K`
`mmap.cc`	22-Oct-2020	`3.8K`
`mmap.h`	22-Oct-2020	`3.8K`