dbb1671e39
[ Merge of http://go/wvgerrit/119644 ] This change includes additional fields in DeviceCertificate, License and UsageInfo. New DRM certificate will include a creation and expiration time. In addition acquisition_time_seconds will allow the client to calulate expiration time even when client and provisioning service clocks are not in sync. expiration_time_seconds will allow clients to expire DRM certificates that do include an expiration time. A random value within a window (4-8 months after update) will be calculated to avoid a provisioning storm. Drm certificate will be added to offline licenses. In a future release, licenses will be removed on expiry and the certification information that needs to be sent to the license service will be reduced. This should reduce space overhead. UsageInfo will use a certificate cache in case multiple usage info entries use the same DRM certificate. Bug: 169740403 Test: WV unit/integration tests Change-Id: I2f34a1df526fa8168162a1b1ea930a2f257b87cd