tree 9bce3200e5f0136a74256412ec025a50094cdb18
parent 8fe9274ab99a0a5e8894a8984d47a9c5a9c0c17c
author Tao Bao <tbao@google.com> 1460674685 -0700
committer Tao Bao <tbao@google.com> 1460675526 -0700

Skip verifying the partition with no changed blocks.

For incremental BBOTAs, commit [1] changed to verify only the touched
blocks to reduce the update time. This CL fixes the bug when there's no
changed block between the two builds.

[1]: commit d522bdc9edbf64d15a59c6924853b2e2c8c39e90

Bug: 27813356
Bug: 28195498
Change-Id: Ia752d3cf034c544517458ed15df509d4596e21fa