tree 1cb6b7856cd80caf7dca396c2d057653ab093c5c
parent 94f51cc3ffe2e20d7ef523531aa147f9a2cda3a3
author Kelvin Zhang <zhangkelvin@google.com> 1599074854 -0400
committer Kelvin Zhang <zhangkelvin@google.com> 1602517770 -0400

Add estimate_cow_size field to update metadata

Part of VAB project. When installing update through Virtual AB it is
nice to have an estimate of COW image size. When generating an OTA
update, delta_generator will fill in this field. Later on libsnapshot
will use this as an hint when creating snapshots.

Test: mm -j
Change-Id: I56aa9dfa5e9d955f971a6464aea433b569cd9307