Since emulated external storage paths differ based on execution
context, carefully fix up paths for various use-cases:
1. When sending paths to DefaultContainerService, always scope
OBB paths as belonging to USER_OWNER.
2. When sending paths to vold, always build emulated storage paths
visible to root.
3. Always use the original untouched path when talking with apps.
Mount OBB containers using shared app GID, so that an app can read
the mount point across users.
Handle legacy paths like "/sdcard" by resolving the canonical path
before sending to MountService. Move tests to servicestests, and
add tests for new path generation logic.
Bug: 7212801
Change-Id: I078c52879cd08d9c8a52cc8c83ac7ced1e8035e7
Rearrange structure of MountService handling of OBBs to be entirely
asynchronous so we don't rely on locking as much. We still need the
locking to support dumpsys which has been improved to output all the
data structures for OBBs.
Added more tests to cover more of the error return codes.
Oh and fix a logic inversion bug.
Change-Id: I34f541192dbbb1903b24825889b8fa8f43e6e2a9
Add a callback for users of the StorageManager API to be able to receive
notifications when the requested operation completes for mountObb and
unmountObb.
Add NDK API to get to ObbInfo like the Java API has.
Also update the docs for the API and remove the "STOPSHIP" comments.
Change-Id: I23a4409c7f8b74d3169614beba920b4d667990a4
