tree 94eafb66067b4139a014a1f03320c4a9a5f32171
parent 0c58bd97384498be14aa9795be9188ca93110e00
author Jeff Sharkey <jsharkey@android.com> 1378590303 -0700
committer Jeff Sharkey <jsharkey@android.com> 1378743369 -0700

Remember mode and sort on per-directory basis.

Persist the last user-selected list/grid mode and sort order for
each directory.  Remembered user choice always overrides provider
hinting.

Filter out recent documents that don't match requested MIME type, and
show recents in grid mode when picking images.  Hide mode and sort
order in recents.

Add hinting flag for backend to indicate a directory would like to be
sorted by last modified.  Include explicit root in DocumentStack and
clearly mark derived fields.

Bug: 10392047, 10608506
Change-Id: I2dd3a0e4112852ebf87e7dbb08b3781c86587dcf