tree 8dd8dc96db12ae8a6dc1983c1b718764a8103e73
parent f6ee0163504eaf1a7cc136ba2c075d77ae2b4dd5
author Alex Deymo <deymo@chromium.org> 1438658583 -0700
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1438854263 +0000

update_engine: Use FileStream in FilesystemVerifierAction.

Instead of dealing manually with the read from the partition while
verifying the filesystem, this patch uses chromeos::FileStream to do
that.

The base::MessageLoopForIO can't wait on regular files because libevent
will fail when trying to watch for such file descriptor. While
chromeos::Stream will still attempt to wait on the file descriptor in
such situation, that will be fixed in chromeos::Streams in a different
CL.

BUG=chromium:499886
TEST=Unittests still pass.

Change-Id: Icd6a031ac1137b1b5746a5c3413506ece79223cc
Reviewed-on: https://chromium-review.googlesource.com/290542
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
Trybot-Ready: Alex Deymo <deymo@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>