tree 059bb4d64dc433b7a8bd2180ed6a0157e840be0b
parent 19dba9a37d5885503ab08be873d1e3e3e8f93c9c
author Jeff Sharkey <jsharkey@android.com> 1401925367 -0700
committer Jeff Sharkey <jsharkey@android.com> 1402358878 -0700

Refactor directory API to "opening document tree."

Cleans up API so it consistently refers to opening or working with a
subtree of documents.  Also separates isChildDocument() support from
the concept of directory tree selection.

Bug: 15429194
Change-Id: Ice66a751ff4bd0cc4d34c44c5da13a0dc4186dc9