Fix potentially misleading safety comment.

Copied verbatim from https://googleplex-android-review.git.corp.google.com/c/platform/frameworks/native/+/26261779/comment/1f2a4ad4_56566142/.

Test: N/A

Change-Id: Ia4f8db801c65f3aa4309d2b06bcdbed67d3b3899
1 file changed