tree 44665f4073411909068b242728f7acdc467263df
parent 70b60797305e68d001a7f5f9a6c6afa634deab4d
author Felka Chang <felkachang@google.com> 1574147212 +0800
committer Felka Chang <felkachang@google.com> 1576461132 +0800

Add the root of crates by Context.getCrateDir

Context.getCrateDir() creates and returns the File for the
root of the crates for the application context. Any child directories
under the crates root in Context.getDataFile() is called
the crate directory.

For example:
  /data/user/0/com.exmaple.app/crates/IAmCratedFolder/decentFiles
  /data/user/0/com.exmaple.app/crates/IAmCratedFolder/decentDirs

Context.getCrateDir return the crate dir
  --> /data/user/0/com.exmaple.app/crates/IAmCratedFolder

The crate dir
  --> IAmCratedFolder
The decent directories or files are not crated folders
  --> decentFiles, decentDirs

Test: atest CtsOsTestCases:android.os.storage.cts.StorageCrateTest
Bug: 141660526
Change-Id: If3ec1e121fb8f72bab5571d6190378e3ae208832