update_engine: Remove directory iteration usage of glib.
P2PManager used g_dir_* functions to iterate over the files in a
directory. This patch uses the POSIX equivalent functions instead.
BUG=chromium:499886
TEST=Unittest still pass.
Change-Id: Ia603dcdd5095db8aadf6fbe431b9a92c9d220d04
Reviewed-on: https://chromium-review.googlesource.com/284891
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
Trybot-Ready: Alex Deymo <deymo@chromium.org>
2 files changed