Merge from Widevine repo of http://go/wvgerrit/23436
This change is just comment changes: minor rewording and grammar
fixes.
Change-Id: I4cb2ef77715623fdb2567f5b504ffaceb937a480
Merge from widevine of http://go/wvgerrit/23283
This CL adds the backwards compatiblity functions to the new usage
tables in the oemcrypto mock reference code.
b/31458046
b/32554171
Change-Id: I04901d95aceb8910406f7c514c26c29c2c575322