Merge from Widevine repo of http://go/wvgerrit/157777 (partially merged in http://go/ag/20031768) In CreateCoreLicenseResponse(), there seems to be an out of bounds potential error due to a missing check that the index used for license_response.parsed_license->key_array is valid. Adding a check for this here. Bug: 217677571 Test: tested with http://go/ag/20420224 PiperOrigin-RevId: 452114761 Change-Id: Id35ec48bebb564596b8e67c737bc13be9377891b