tree 4e8b478a428e7917a02a19a8cd5bffcc0f0ec287
parent 542c19bf271011913a9f352f58e140224c936736
author Sen Jiang <senj@google.com> 1447801442 -0800
committer Gerrit Code Review <noreply-gerritcodereview@google.com> 1449527392 +0000

Optional source filesystem verification in minor version 3.

In minor version 3, we use per-operation source hash to verify the source
instead of whole filesystem hash, but if target partition doesn't match,
we still need to check the source partition to see if it is the cause.

Bug: 23182225
TEST=Applied a minor version 3 delta payload.
TEST=cros_workon_make update_engine --test

Change-Id: I1f32c292d2938540b63f086cf4988d64620702a5