commit f339f25982d562e1690358eb6dc663b327960945
author Jeff Sharkey <jsharkey@android.com> Thu Aug 15 16:17:41 2013 -0700
committer Jeff Sharkey <jsharkey@android.com> Thu Aug 15 16:25:30 2013 -0700
tree 720c00035095a8eaf79be732cb6e2afed2c373c2
parent 1d890e0daf2f46dc83580280cfa22031dfebc216

Documents management mode; API adjustment.

Create documents manage mode to support Downloads and transient
storage devices.  Locks user into requested backend root, and forces
file sizes on and sorting by last modified.

Separate API constants for Documents versus Roots, and give concrete
MIME types for roots.

Treat null sizes as unknown.  Documents are always enabled in list
so that divider is drawn.  Mark external storage file as writable.

Bug: 10329983, 10332993, 10332952
Change-Id: I05f4fdf5b04041a38e1ba7fb30202a3b0c615bf6