tree e695a39912b6df70a37328a867da25fb86ba2487
parent 568dc01fdf973c2d731c9dafe7c5b73ecb6627aa
author Christopher Ferris <cferris@google.com> 1491419357 -0700
committer Christopher Ferris <cferris@google.com> 1491420612 -0700

Convert opens to use unique_fd.

Fixes a potential leak of fds in WriteStringToFile.

Test: I wrote a temporary test that failed the fchmod on host in
Test: WriteStringToFile. I verified this fails with the old code after running
Test: out of fds and passes with the new code.
Change-Id: I168160841e35dd480d59a69bb4aa8176899fbb32