tree 473ec5087d8e55796acfdf1311e0371138b9104b
parent a5e0fedbb3e344fa423f349d10e470cc59274ee8
author Jeff Sharkey <jsharkey@android.com> 1471969496 -0600
committer Jeff Sharkey <jsharkey@google.com> 1472679774 +0000

DO NOT MERGE. Clarify FileObserver docs for null value.

Change-Id: I7dc0b0d26220d6eb82f956a9860cfb6aeccfd12f
Test: none
Bug: 30511606
(cherry picked from commit 902316d5533632321a945651b1d044c4e23bf742)