tree c370c3a3f5f3d401e2a37fd2f8700756b6e2c3d8
parent a747d2e2230ee7f186b36d6a2f619658ecfe074f
author Ben Kwa <kenobi@google.com> 1440716686 -0700
committer Ben Kwa <kenobi@google.com> 1441060163 -0700

Refactor DirectoryFragment.

Consolidate data logic in a DirectoryFragment.Model class, instead of
having it spread out between the DirectoryFragment and the DocumentsAdapter.

BUG=23518578

Change-Id: I7c2b6c7aa388f5872ac18c320b86445f3c354792