commit ef221a86a5ccdfb599792a7a64581486dd8c07a5
author tbarzic <tbarzic@google.com> Fri Jun 10 03:27:58 2011
committer Toni Barzic <tbarzic@chromium.org> Thu Jun 16 20:48:13 2011
tree 9d9657e8ae7cdb282954b71ee011acc913e0a985
parent fa9bbf50cc94ce33cc1fa955617a0811f8940d8b

Refactoring image burn service and adding some unittests.

Mostly extracting existing logic to separate interfaces:
FileWriter, FileReader, SignalSender

Also, we don't asume that boot device is on /dev/sda

TEST=Run unittests for imageburner;
     On ChromeOS: /usr/sbin/image_burner_tester (needs root device to be on sda,
                      and a removable device on sdb (which gets destroyed)).

BUG=chromium-os:16318

Change-Id: I58d4191ddb3c793cd2ca840ed533c00187e33e26
Reviewed-on: http://gerrit.chromium.org/gerrit/2705
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Tested-by: Toni Barzic <tbarzic@chromium.org>