[ Merge of http://go/wvgerrit/128023 ]
Several of the messages in license_protocol.proto have fallen out of
sync with their source-of-truth in Google3. This change updates most
of the proto messages used by the CDM. None of these changes
immediately affect the CDM.
Bug: 192286204
Test: Build service and unit tests
Change-Id: I83414167d51f2443fe39f02ab160341918e409c9