Signing and encryption keys are not correctly setup in OEMCrypto, when an offline license is restored, before generating a key release message. This results in key release failures. Playing back the license response causes keys to be derived and allows the key release message to be constructed. b/9016545 Merge of https://widevine-internal-review.googlesource.com/#/c/5682/ from the Widevine CDM repository Change-Id: Ica9f13acc7c87e3125fa706f3a56e95b77a14a3c