Merge "Add cow_api_test to presubmit." am: 53dfaceac4 am: 514257bc8a am: 0bf46046b1

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1664323

Change-Id: I8e638fbf3cd4886f5b48e0d1efc4806487dfe954