From the Widevine CDM repository:
https://widevine-internal-review.googlesource.com/#/c/9182/
This CL adds a test to verify that at most 20 nonces may be created in
one second. This should prevent the replay attack that an
appplication could do by generating large quantities of nonces until
it finds a repeat.
I've also updated the Level 3 and reference implementations.
This feature is required for OEMCrypto version 9.
Change-Id: Ia86323133810fcbbd79d7bb27bd5a004d7c87314
fec3e87167