[ Cherry-pick of v19 http://go/wvgerrit/219310 ]
[ Merge of http://go/wvgerrit/219453 ]
To enable the CDM to determine between OEM vs DRM responses,
a state variable was needed in CertificateProvisioning.
Previously, the presence/absence of the OEM certificate in the
file system was used; however, if two apps (or single app with
multiple origins) attempts provisioning simultaneously, the
later response would trigger unexpected failures.
The main functional changes this provides is that a more informative
error will be returned to the app if they provide a provisioning
response without ever creating a provisioning request; and that
if multiple clients attempted first-stage provisioning simultaneously,
fewer errors will occur.
Bug: 391469176
Test: run_prov40_tests
Change-Id: I51a118ce73aa809bad6ecee640139a92d8518575
b0fa978058